R1191x SERIES - mouser.com
Transcript of R1191x SERIES - mouser.com
R1191x SERIES
300mA LDO REGULATOR with the Reverse Current Protection NO.EA-229-111026
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OUTLINE R1191x Series are a low supply current voltage regulator with high output voltage accuracy. The maximum
operating voltage is 16V. These ICs can switch to the fast mode and the low power mode by the low power / fast mode changer pin (ECO pin) without changing the output voltage value.
Each of these ICs consists of a voltage reference unit, an error amplifier, a resistor-net for voltage setting, a short current limit circuit, a thermal shutdown circuit and a chip enable circuit.
Moreover, the R1191x Series has the reverse current protection function, which protects the reverse current flow into VDD pin when the output pin voltage becomes higher than the VDD pin voltage. Thus it is suitable for the back-up circuit.
Since the packages for these ICs are SOT-89-5, SOT-23-5 and DFN1616-6, therefore high density mounting of the ICs on boards is possible.
FEATURES • Supply Current ..................................................... Typ. 50μA (Fast Mode),
Typ. 6.0μA (Low Power Mode) • Standby Mode ...................................................... Typ. 0.3μA • Reverse Current................................................... Max. 0.1μA • Output Current ..................................................... Min. 300mA • Input Voltage Range ............................................ 3.5V to 16.0V • Output Voltage Range.......................................... 2.0V to 15.0V (0.1V steps) (For other voltages, please refer to MARK INFORMATIONS.) • Output Voltage Accuracy...................................... ±1.5% (Fast Mode)
±2.5% (Low Power Mode) • Temperature-Drift Coefficient of Output Voltage .. Typ. ±80ppm/°C • Dropout Voltage ................................................... Typ. 0.55V (Fast Mode, IOUT=300mA ,VOUT=5.0V)
Typ. 0.70V (Low Power Mode, IOUT=300mA,VOUT=5.0V) • Ripple Rejection................................................... Typ. 60dB (f=1kHz,VOUT=5.0V, Fast Mode) • Line Regulation .................................................... Typ. 0.02%/V (Fast Mode) • Packages ............................................................ DFN1616-6, SOT-23-5, SOT-89-5 • Built-in fold-back protection circuit ....................... Typ. 50mA (Current at short mode) • Built-in Thermal Shutdown Circuit........................ Shutdown Temperature at 150°C • Ceramic capacitors are recommended to be used with this IC ····CIN=2.2μF or more, COUT=4.7μF or more
APPLICATIONS • Power source for digital home appliances • Power source for audio visual equipment
R1191x
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BLOCK DIAGRAM R1191xxxxB R1191xxxxD
VDD VOUT
CE GND
Short Protection
Vref
Thermal Shutdown
ECO
Peak Current Protection
Reverse Detector
VDD VOUT
CE GND
ShortProtection
Vref
Thermal Shutdown
ECO
PeakCurrent Protection
Reverse Detector
SELECTION GUIDE The output voltage, auto-discharge function, and package, for the ICs can be selected at the user’s request.
Product Name Package Quantity per Reel Pb Free Halogen Free
R1191Lxxx∗-TR DFN1616-6 5,000 pcs Yes Yes
R1191Nxxx∗-TR-FE SOT-23-5 3,000 pcs Yes Yes
R1191Hxxx∗-T1-FE SOT-89-5 1,000 pcs Yes Yes
xxx : The output voltage can be designated in the range from 2.0V(020) to 15.0V(150) in 0.1V steps. (For other voltages, please refer to MARK INFORMATIONS.)
∗ : The auto discharge function at off state are options as follows. (B) without auto discharge function at off state. (D) with auto discharge function at off state.
R1191x
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PIN CONFIGURATIONS • DFN1616-6*1 • SOT-23-5 • SOT-89-5
Top View
3
4
2
5
1
6
Bottom View
1
6
2
5
3
4
∗
1
45
2 3
(mark side)
1 3
5 4
2
PIN DISCRIPTIONS • DFN1616-6*1
Pin No Symbol Pin Description 1 ECO Low Power / Fast Mode Changer Pin ("H": Fast Mode)
2 NC No Connection
3 VDD Input Pin
4 VOUT Output pin
5 GND Ground Pin
6 CE Chip Enable Pin ("H" Active)
∗1) Tab is GND level. (They are connected to the reverse side of this IC.) The tab is better to be connected to the GND, but leaving it open is also acceptable.
• SOT-23-5
Pin No Symbol Pin Description 1 ECO Low Power / Fast Mode Changer Pin ("H": Fast Mode)
2 GND Ground Pin
3 CE Chip Enable Pin ("H" Active)
4 VOUT Output pin
5 VDD Input Pin
• SOT-89-5
Pin No Symbol Pin Description 1 VOUT Output pin
2 GND Ground Pin
3 CE Chip Enable Pin ("H" Active)
4 ECO Low Power / Fast Mode Changer Pin ("H": Fast Mode)
5 VDD Input Pin
R1191x
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ABSOLUTE MAXIMUM RATINGS Symbol Item Rating Unit
VIN Input Voltage −0.3 to 18.0 V
VCE Input Voltage (CE Pin) −0.3 to 18.0 V
VECO Input Voltage (ECO Pin) −0.3 to VIN + 0.3 ≤ 18.0 V
VOUT Output Voltage −0.3 to 18.0 V
IOUT Output Current 400 mA
Power Dissipation (DFN1616-6)* 640
Power Dissipation (SOT-23-5)* 420 PD
Power Dissipation (SOT-89-5)* 900
mW
Topt Operating Temperature Range −40 to +85 °C Tstg Storage Temperature Range −55 to +125 °C
∗) For Power Dissipation, please refer to PACKAGE INFORMATION.
ABSOLUTE MAXIMUM RATINGS
Electronic and mechanical stress momentarily exceeded absolute maximum ratings may cause the permanent damages and may degrade the life time and safety for both device and system using the device in the field. The functional operation at or over these absolute maximum ratings is not assured.
RECOMMENDED OPERATING CONDITIONS (ELECTRICAL CHARACTERISTICS)
All of electronic equipment should be designed that the mounted semiconductor devices operate within the recommended operating conditions. The semiconductor devices cannot operate normally over the recommended operating conditions, even if when they are used over such conditions by momentary electronic noise or surge. And the semiconductor devices may receive serious damage when they continue to operate over the recommended operating conditions.
R1191x
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ELECTRICAL CHARACTERISTICS VIN=VCE=Set VOUT+3.0V (Max.16V), CIN=2.2μF, COUT=4.7μF IOUT=1mA, unless otherwise noted. The values in are applicable under the condition of −40°C ≤ Topt ≤ 85°C.
R1191xxxxB/D Topt=25°C Symbol Item Conditions Min. Typ. Max. Unit
Topt=25°C ×0.985 ×1.015Fast Mode VECO=VIN −40°C ≤ Topt ≤ 85°C ×0.970 ×1.030Topt=25°C ×0.975 ×1.025
VOUT Output Voltage Low Power Mode VECO=0V
−40°C ≤ Topt ≤ 85°C ×0.960 ×1.040
V
ΔVOUT Output Voltage Deviation between Fast Mode and Low Power Mode −1.5 0 1.5 % IOUT Output Current 300 mA
Fast Mode VECO=VIN, 1mA ≤ IOUT ≤ 300mA 50 120
ΔVOUT/ ΔIOUT Load Regulation
Low Power Mode
VECO=GND, 1mA ≤ IOUT ≤ 300mA 60 130
mV
VDIF Dropout Voltage Refer to the following table
ISS1 Supply Current (Fast Mode) VECO=VIN, IOUT=0mA 50 100 μA
ISS2 Supply Current (Low Power Mode) VECO=GND, IOUT=0mA 6 15 μA
Istandby Supply Current (Standby) VIN=16V, VCE=0V (If VOUT < 3.0V, VIN=14V) 0.3 1.0 μA
ΔVOUT/ ΔVIN Line Regulation Set VOUT+0.5V ≤ VIN ≤ 16V
(If Set VOUT < 3.0V, 3.5V ≤ VIN ≤ 14V) 0.02 0.10 %/V
2.0V≤VOUT<5.0V 70
5.0V≤VOUT<12V 60 RR Ripple Rejection
f=1kHz, IOUT=30mARipple 0.2Vp-p, VIN=VECO= Set VOUT+1V 12V ≤ VOUT 60
dB
2.0V ≤ VOUT < 3.0V 14.0 VIN Input Voltage
3.0V ≤ VOUT 3.5
16.0 V
ΔVOUT/ ΔTopt
Output Voltage Temperature Coefficient −40°C ≤ Topt ≤ 85°C ±80 ppm
/°C ISC Short Current Limit VOUT=0V 50 mA
VCEH CE, ECO Input Voltage "H" 1.6 VIN V VCEL CE, ECO Input Voltage "L" 0 0.6 V
TTSD Thermal Shutdown Temperature Junction Temperature 150 °C
TTSR Thermal Shutdown Released Temperature Junction Temperature 130 °C
RLOW Low Output Nch Tr. ON Resistance (of D Version)
VIN=5V, VCE=0V, VOUT=0.3V 150 Ω
IREV Reverse Current VOUT> 0.6V, 0V ≤ VIN ≤ 16V 0 0.1 μA
∗) The values in have been tested and guaranteed by Design Engineering. All test categories were tested on the products under the pulse load condition (Tj≈Ta=25°C) except the following test categories: ripple rejection, output voltage temperature coefficient, and thermal shutdown.
R1191x
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ELECTRICAL CHARACTERISTICS by OUTPUT VOLTAGE Topt=25°C
Dropout Voltage VDIF (V) ECO="H" ECO="L" Output Voltage
VOUT (V) Condition Typ. Max. Typ. Max.
2.0 ≤ VOUT < 2.5 1.20 1.80 2.5 3.0
2.5 ≤ VOUT < 3.3 1.00 1.50 2.0 2.5
3.3 ≤ VOUT < 5.0 0.75 1.00 1.5 1.8
5.0 ≤ VOUT < 12.0 0.55 0.75 0.7 1.0
12.0 ≤ VOUT
IOUT=300mA
0.40 0.60 0.4 0.6
TYPICAL APPLICATION
C1 R1191x Series
VDD VOUT
CE GND
VOUT
ECO
C2VIN
(External Components) Ex. C1: Ceramic Capacitor 2.2μF Murata GRM32RB11E225KC01B
C2: Ceramic Capacitor 4.7μF Murata GCM31CR71E475KA40
R1191x
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TECHNICAL NOTES When using these ICs, consider the following points:
• Phase Compensation In these ICs, phase compensation is made for securing stable operation even if the load current is varied. For
this purpose, use a capacitor C2 with good frequency characteristics and ESR (Equivalent Series Resistance). (Note: If additional ceramic capacitors are connected with parallel to the output pin with an output capacitor for
phase compensation, the operation might be unstable. Because of this, test these ICs with as same external components as ones to be used on the PCB.)
• PCB Layout
Make VDD and GND lines sufficient. If their impedance is high, noise pickup or unstable operation may result. Connect a capacitor C1 with a capacitance value as much as 2.2μF or more between VDD and GND pin, and as close as possible to the pins.
Set external components, especially the capacitor C2, as close as possible to the ICs, and make wiring as short as possible.
• Thermal Shutdown Function
There is the built-in thermal-shutdown function in R1191x series. It discontinues operation of the IC when the junction temperature becomes over 150°C (Typ.) and IC re-operates when the junction temperature under 130°C (Typ.). If the temperature increasing keeps the IC repeats ON and OFF operating. The output becomes the pulse condition.
• Chip Enable (CE) Circuit and High-speed/ Low Supply Current Switching (ECO) Circuit
To maintain the stability of the output voltage, please do not use the intermediate electric potentials (the voltage values between VCEH and VCEL) for the CE pin and the ECO pin. The use of the intermediate electric potentials increases the supply current and causes the unstable output voltage.
• Auto-discharge Function
R1191xxxxD has adopted Auto-discharge function, which decreases the output voltage quickly to 0V by turning on the transistor between VOUT pin and GND pin when switching “Active” to “Standby” and releases the electrical charges accumulated in the external capacitor.
R1191x
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TEST CIRCUITS
R1191x Series
VDD
CE
VOUT
GND
C2
ECO
VVOUT
C1 ↓ IOUT
C1=Ceramic 2.2μF C2=Ceramic 4.7μF
Basic Test Circuit
ISS A R1191x
Series
VDD
CE
VOUT
GND
C2
ECO
VOUT
C1
C1=Ceramic 2.2μF C2=Ceramic 4.7μF
Test Circuit for Supply Current
Pulse Generator
VDD
CE
VOUT
GND
C2↓
IOUT
R1191x Series
ECO
C1=Ceramic 2.2μF C2=Ceramic 4.7μF
P.G.
Test Circuit for Ripple Rejection
R1191x
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VDD
CE
VOUT
GND
C2
C1
VOUT
V IOUT b
↓
IOUT a R1191x Series
ECO
C1=Ceramic 2.2μF C2=Ceramic 4.7μF
VIN
Test Circuit for Load Transient Response
R1191x
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TYPICAL CHARACTERISTICS 1) Output Voltage vs. Output Current (C1=2.2μF, C2=4.7μF, Topt=25°C)
R1191x020x ECO=H R1191x020x ECO=L
0 200 400 800
Out
put V
olta
ge V
OU
T (V
)
0.5
1.5
2.5
1.0
2.0
0
Output Current IOUT (mA)600
VIN=3.5VVIN=3.8VVIN=4.0VVIN=4.5VVIN=5.0V
0 200 400 800
Out
put V
olta
ge V
OU
T (V
)
0.5
1.5
2.5
1.0
2.0
0
Output Current IOUT (mA)600
VIN=3.5VVIN=3.8VVIN=4.0VVIN=4.5VVIN=5.0V
R1191x050x ECO=H R1191x050x ECO=L
0 200 400 800
Out
put V
olta
ge V
OU
T (V
)
2
4
6
3
5
1
0
Output Current IOUT (mA)600
VIN=5.5VVIN=5.55VVIN=5.7VVIN=6.0VVIN=7.0VVIN=8.0V
0 200 400 800
Out
put V
olta
ge V
OU
T (V
)
2
4
6
3
5
1
0
Output Current IOUT (mA)600
VIN=5.5VVIN=5.55VVIN=5.7VVIN=6.0VVIN=7.0VVIN=8.0V
R1191x150x ECO=H R1191x150x ECO=L
0 200 400 800
Out
put V
olta
ge V
OU
T (V
)
4
8
16
6
12
10
14
2
0
Output Current IOUT (mA)600
VIN=15.4VVIN=15.5VVIN=15.6VVIN=15.75VVIN=16.0V
0 200 400 800
Out
put V
olta
ge V
OU
T (V
)
4
8
16
6
12
10
14
2
0
Output Current IOUT (mA)600
VIN=15.4VVIN=15.5VVIN=15.6VVIN=15.75VVIN=16.0V
R1191x
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2) Output Voltage vs. Input Voltage (C1=2.2μF, C2=4.7μF, Topt=25°C) R1191x020x ECO=H R1191x020x ECO=L
0 2 4 6 108 12 14
Out
put V
olta
ge V
OU
T (V
)
1.0
2.0
3.0
1.5
2.5
0.5
0
Input Voltage VIN (V)
IOUT=0mAIOUT=1mAIOUT=30mAIOUT=50mA
0 2 4 6 108 12 14
Out
put V
olta
ge V
OU
T (V
)
1.0
2.0
3.0
1.5
2.5
0.5
0
Input Voltage VIN (V)
IOUT=0mAIOUT=1mAIOUT=30mAIOUT=50mA
R1191x050x ECO=H R1191x050x ECO=L
0 2 4 6 108 12 14 16
Out
put V
olta
ge V
OU
T (V
)
2
4
6
3
5
1
0
Input Voltage VIN (V)
IOUT=0mAIOUT=1mAIOUT=30mAIOUT=50mA
0 2 4 6 108 12 14 16
Out
put V
olta
ge V
OU
T (V
)
2
4
6
3
5
1
0
Input Voltage VIN (V)
IOUT=0mAIOUT=1mAIOUT=30mAIOUT=50mA
R1191x150x ECO=H R1191x150x ECO=L
0 2 4 6 108 12 14 16
Out
put V
olta
ge V
OU
T (V
)
4
8
16
6
12
10
14
2
0
Input Voltage VIN (V)
IOUT=0mAIOUT=1mAIOUT=30mAIOUT=50mA
0 2 4 6 108 12 14 16
Out
put V
olta
ge V
OU
T (V
)
4
8
16
6
12
10
14
2
0
Input Voltage VIN (V)
IOUT=0mAIOUT=1mAIOUT=30mAIOUT=50mA
R1191x
12
3) Supply Current vs. Input Voltage (C1=2.2μF, C2=4.7μF, Topt=25°C) R1191x020x ECO=H R1191x020x ECO=L
0 2 4 6 108 12 14
Sup
ply
Cur
rent
ISS
1 (μA
)
20
40
70
60
30
50
10
0
Input Voltage VIN (V) 0 2 4 6 108 12 14
Sup
ply
Cur
rent
ISS
2 (μA
)
2
4
10
8
3
65
9
7
10
Input Voltage VIN (V) R1191x050x ECO=H R1191x050x ECO=L
0 2 4 6 108 12 1614
Sup
ply
Cur
rent
ISS
1 (μA
)
20
40
70
60
30
50
10
0
Input Voltage VIN (V)
Sup
ply
Cur
rent
ISS
2 (μA
)
2
4
10
8
3
65
9
7
10
Input Voltage VIN (V)0 2 4 6 108 12 1614
R1191x150x ECO=H R1191x150x ECO=L
0 2 4 6 108 12 1614
Sup
ply
Cur
rent
ISS
1 (μA
)
20
40
70
60
30
50
10
0
Input Voltage VIN (V)
Sup
ply
Cur
rent
ISS
2 (μA
)
2
4
10
8
3
65
9
7
10
Input Voltage VIN (V)0 2 4 6 108 12 1614
R1191x
13
4) Output Voltage vs. Temperature (C1=2.2μF, C2=4.7μF, IOUT=1mA) R1191x020x ECO=H R1191x020x ECO=L
-40 -25 0 25 50 85
Out
put V
olta
ge V
OU
T (V
)
2.04
2.082.10
2.00
1.92
1.96
2.06
2.02
1.94
1.98
1.90
Temperature Topt (°C)75
VIN=5.0V
-40 -25 0 25 50 85
Out
put V
olta
ge V
OU
T (V
)
2.04
2.082.10
2.00
1.92
1.96
2.06
2.02
1.94
1.98
1.90
Temperature Topt (°C)75
VIN=5.0V
R1191x050x ECO=H R1191x050x ECO=L
-40 -25 0 25 50 85
Out
put V
olta
ge V
OU
T (V
)
5.08
5.165.20
5.00
4.84
4.92
5.12
5.04
4.88
4.96
4.80
Temperature Topt (°C)75
VIN=8.0V
-40 -25 0 25 50 85
Out
put V
olta
ge V
OU
T (V
)
5.08
5.165.20
5.00
4.84
4.92
5.12
5.04
4.88
4.96
4.80
Temperature Topt (°C)75
VIN=8.0V
R1191x150x ECO=H R1191x150x ECO=L
-40 -25 0 25 50 85
Out
put V
olta
ge V
OU
T (V
)
15.16
15.3215.40
15.00
14.68
14.84
15.24
15.08
14.76
14.92
14.60
Temperature Topt (°C)75
VIN=16.0V
-40 -25 0 25 50 85
Out
put V
olta
ge V
OU
T (V
)
15.16
15.3215.40
15.00
14.68
14.84
15.24
15.08
14.76
14.92
14.60
Temperature Topt (°C)75
VIN=16.0V
R1191x
14
5) Supply Current vs. Temperature (C1=2.2μF, C2=4.7μF) R1191x020x ECO=H R1191x020x ECO=L
-40 -25 0 25 50 85
40
60
70
20
50
30
10
075
Sup
ply
Cur
rent
ISS
1 (μA
)
Temperature Topt (°C)
VIN=5.0V
-40 -25 0 25 50 85
4
8
10
1
6
2
5
9
7
3
075
Sup
ply
Cur
rent
ISS
2 (μA
)Temperature Topt (°C)
VIN=5.0V
R1191x050x ECO=H R1191x050x ECO=L
-40 -25 0 25 50 85
40
60
70
20
50
30
10
075
Sup
ply
Cur
rent
ISS
1 (μA
)
Temperature Topt (°C)
VIN=8.0V
-40 -25 0 25 50 85
4
8
10
1
6
2
5
9
7
3
075
Sup
ply
Cur
rent
ISS
2 (μA
)
Temperature Topt (°C)
VIN=8.0V
R1191x150x ECO=H R1191x150x ECO=L
-40 -25 0 25 50 85
40
60
70
20
50
30
10
075
Sup
ply
Cur
rent
ISS
1 (μA
)
Temperature Topt (°C)
VIN=16.0V
-40 -25 0 25 50 85
4
8
10
1
6
2
5
9
7
3
075
Sup
ply
Cur
rent
ISS
2 (μA
)
Temperature Topt (°C)
VIN=16.0V
R1191x
15
6) Standby Current vs. Input Voltage (C1=2.2μF, C2=4.7μF)
0 2 4 6 8 10 12 14 16
Sta
ndby
Cur
rent
Ista
ndby
(μA
)
0.2
0.4
0.5
0.3
0.1
0
Input Voltage VIN (V)
85°C25°C-40°C
7) Reverse Current vs. Output Voltage (C1=2.2μF, C2=4.7μF, VIN=0V)
0 2 4 6 8 10 12 14 16
Rev
erse
Cur
rent
IRE
V (μ
A)
0.02
0.04
0.05
0.03
0.01
0
Output Voltage VOUT (V)
85°C25°C-40°C
8) Dropout Voltage vs. Output Current (C1=2.2μF, C2=4.7μF) R1191x020x ECO=H R1191x020x ECO=L
0 50 100 150 200 250 300
Dro
pout
Vol
tage
VD
IF (V
)
1.00
2.00
3.00
1.50
2.50
0.50
0
Output Current IOUT (mA)
85°C25°C-40°C
0 50 100 150 200 250 300
Dro
pout
Vol
tage
VD
IF (V
)
1.00
2.00
3.00
1.50
2.50
0.50
0
Output Current IOUT (mA)
85°C25°C-40°C
R1191x
16
R1191x025x ECO=H R1191x025x ECO=L
0 50 100 150 200 250 300
Dro
pout
Vol
tage
VD
IF (V
)
0.50
1.50
2.50
1.00
2.00
0
Output Current IOUT (mA)
85°C25°C-40°C
0 50 100 150 200 250 300
Dro
pout
Vol
tage
VD
IF (V
)
0.50
1.50
2.50
1.00
2.00
0
Output Current IOUT (mA)
85°C25°C-40°C
R1191x033x ECO=H R1191x033x ECO=L
0 50 100 150 200 250 300
Dro
pout
Vol
tage
VD
IF (V
)
0.30
0.90
1.50
0.60
1.20
0
Output Current IOUT (mA)
85°C25°C-40°C
0 50 100 150 200 250 300
Dro
pout
Vol
tage
VD
IF (V
)
0.30
0.90
1.50
0.60
1.20
0
Output Current IOUT (mA)
85°C25°C-40°C
R1191x050x ECO=H R1191x050x ECO=L
0 50 100 150 200 250 300
Dro
pout
Vol
tage
VD
IF (V
)
0.20
0.60
1.00
0.40
0.80
0
Output Current IOUT (mA)
85°C25°C-40°C
0 50 100 150 200 250 300
Dro
pout
Vol
tage
VD
IF (V
)
0.20
0.60
1.00
0.40
0.80
0
Output Current IOUT (mA)
85°C25°C-40°C
R1191x
17
R1191x120x ECO=H R1191x120x ECO=L
0 50 100 150 200 250 300
Dro
pout
Vol
tage
VD
IF (V
)
0.10
0.40
0.80
0.20
0.60
0.50
0.30
0.70
0
Output Current IOUT (mA)
85°C25°C-40°C
0 50 100 150 200 250 300
Dro
pout
Vol
tage
VD
IF (V
)
0.10
0.40
0.80
0.20
0.60
0.50
0.30
0.70
0
Output Current IOUT (mA)
85°C25°C-40°C
R1191x150x ECO=H R1191x150x ECO=L
0 50 100 150 200 250 300
Dro
pout
Vol
tage
VD
IF (V
)
0.10
0.40
0.80
0.20
0.60
0.50
0.30
0.70
0
Output Current IOUT (mA)
85°C25°C-40°C
0 50 100 150 200 250 300
Dro
pout
Vol
tage
VD
IF (V
)
0.10
0.40
0.80
0.20
0.60
0.50
0.30
0.70
0
Output Current IOUT (mA)
85°C25°C-40°C
9) Dropout Voltage vs Set Output Voltage (C1=2.2μF, C2=4.7μF,Topt=25°C) R1191x ECO=H R1191x ECO=L
2 5 9 15
Dro
pout
Vol
tage
VD
IF (V
)
1.20
0.80
0.20
0.40
1.00
0.60
0
Set Output Voltage VREG (V)133 7 116 10 144 8 12
IOUT=300mAIOUT=150mAIOUT=50mA
2 5 9 15
Dro
pout
Vol
tage
VD
IF (V
)
2.50
1.50
0.50
2.00
1.00
0
Set Output Voltage VREG (V)133 7 116 10 144 8 12
IOUT=300mAIOUT=150mAIOUT=50mA
R1191x
18
10) Ripple Rejection vs. Input Voltage (C1=none, C2=4.7μF, IOUT=30mA, Ripple=0.5Vp-p, Topt=25°C) R1191x020x ECO=H R1191x020x ECO=L
3.5 5.5 6.0 6.5 7.0
Rip
ple
Rej
ectio
n R
R (d
B)
100
70
10
30
90
50
80
20
40
60
0
Input Voltage VIN (V)4.5 5.04.0
f=1kHzf=10kHzf=100kHz
3.5 5.5 6.0 6.5 7.0
Rip
ple
Rej
ectio
n R
R (d
B)
100
70
10
30
90
50
80
20
40
60
0
Input Voltage VIN (V)4.5 5.04.0
f=1kHzf=10kHzf=100kHz
R1191x050x ECO=H R1191x050x ECO=L
5.0 7.5 8.0 8.5 9.0
Rip
ple
Rej
ectio
n R
R (d
B)
100
70
10
30
90
50
80
20
40
60
0
Input Voltage VIN (V)6.5 7.06.05.5
f=1kHzf=10kHzf=100kHz
5.0 7.5 8.0 8.5 9.0
Rip
ple
Rej
ectio
n R
R (d
B)
100
70
10
30
90
50
80
20
40
60
0
Input Voltage VIN (V)6.5 7.06.05.5
f=1kHzf=10kHzf=100kHz
R1191x150x ECO=H R1191x150x ECO=L
15.0 15.5 15.6 15.7
Rip
ple
Rej
ectio
n R
R (d
B)
100
70
10
30
90
50
80
20
40
60
0
Input Voltage VIN (V)15.3 15.415.215.1
f=1kHzf=10kHzf=100kHz
15.0 15.5 15.6 15.7
Rip
ple
Rej
ectio
n R
R (d
B)
100
70
10
30
90
50
80
20
40
60
0
Input Voltage VIN (V)15.3 15.415.215.1
f=1kHzf=10kHzf=100kHz
R1191x
19
11) Ripple Rejection vs. Frequency (C1= none, C2=4.7μF, Ripple=0.5Vp-p, Topt=25°C) R1191x020x ECO=H R1191x020x ECO=L
0.1 101 1000100
Frequency f (kHz)
0
100
80
60
40
20
90
70
50
30
10Rip
ple
Rej
ectio
n R
R (d
B)
IOUT=1mAIOUT=10mAIOUT=30mAIOUT=50mAIOUT=100mAIOUT=300mA
VIN=5.0V
0.1 101 1000100
Frequency f (kHz)
0
100
80
60
40
20
90
70
50
30
10Rip
ple
Rej
ectio
n R
R (d
B) IOUT=1mA
IOUT=10mAIOUT=30mAIOUT=50mAIOUT=100mAIOUT=300mA
VIN=5.0V
R1191x050x ECO=H R1191x050x ECO=L
0.1 101 1000100
Frequency f (kHz)
0
100
80
60
40
20
90
70
50
30
10Rip
ple
Rej
ectio
n R
R (d
B)
IOUT=1mAIOUT=10mAIOUT=30mAIOUT=50mAIOUT=100mAIOUT=300mA
VIN=8.0V
0.1 101 1000100
Frequency f (kHz)
0
100
80
60
40
20
90
70
50
30
10Rip
ple
Rej
ectio
n R
R (d
B) IOUT=1mA
IOUT=10mAIOUT=30mAIOUT=50mAIOUT=100mAIOUT=300mA
VIN=8.0V
R1191x150x ECO=H R1191x150x ECO=L
0.1 101 1000100
Frequency f (kHz)
0
100
80
60
40
20
90
70
50
30
10Rip
ple
Rej
ectio
n R
R (d
B)
IOUT=1mAIOUT=10mAIOUT=30mAIOUT=50mAIOUT=100mAIOUT=300mA
VIN=16.0V
0.1 101 1000100
Frequency f (kHz)
0
100
80
60
40
20
90
70
50
30
10Rip
ple
Rej
ectio
n R
R (d
B) IOUT=1mA
IOUT=10mAIOUT=30mAIOUT=50mAIOUT=100mAIOUT=300mA
VIN=16.0V
R1191x
20
12) Input Transient Response (C1=none, C2=4.7μF, IOUT=1mA, tr=tf=1μs, Topt=25°C) R1191x020x ECO=H R1191x020x ECO=L
1.98
2.01
2.02
2.03
2.04
1.99
2.00
6
5
4
3
2
1
02000 100 300 400 500 600 700 800 900
Inpu
t Vol
tage
VIN
(V)
Output Voltage
Input Voltage
Time t (μs)
Out
put V
olta
ge V
OU
T (V
)
4V 5V
1.80
2.10
2.20
2.30
2.40
1.90
2.00
6
5
4
3
2
1
020 1 3 4 5 6 7 8 9
Inpu
t Vol
tage
VIN
(V)
Output Voltage
Input Voltage
Time t (ms)O
utpu
t Vol
tage
VO
UT
(V)
4V 5V
R1191x050x ECO=H R1191x050x ECO=H
4.98
5.01
5.02
5.03
5.04
4.99
5.00
9
8
7
6
5
4
32000 100 300 400 500 600 700 800 900
Inpu
t Vol
tage
VIN
(V)
Output Voltage
Input Voltage
Time t (μs)
Out
put V
olta
ge V
OU
T (V
)
7V 8V
4.80
5.10
5.20
5.30
5.40
4.90
5.00
9
8
7
6
5
4
3
Inpu
t Vol
tage
VIN
(V)
Output Voltage
Input Voltage
Time t (ms)
Out
put V
olta
ge V
OU
T (V
)
7V 8V
20 1 3 4 5 6 7 8 9
R1191x150x ECO=H R1191x150x ECO=L
14.98
15.01
15.02
15.03
15.04
14.99
15.00
17
16
15
14
13
12
112000 100 300 400 500 600 700 800 900
Inpu
t Vol
tage
VIN
(V)
Output Voltage
Input Voltage
Time t (μs)
Out
put V
olta
ge V
OU
T (V
)
15.5V 16.0V
14.80
15.10
15.20
15.30
15.40
14.90
15.00
17
16
15
14
13
12
11
Inpu
t Vol
tage
VIN
(V)
Output Voltage
Input Voltage
Out
put V
olta
ge V
OU
T (V
)
15.5V 16.0V
Time t (ms)20 1 3 4 5 6 7 8 9
R1191x
21
13) Load Transient Response (C1=2.2μF, C2=4.7μF, tr=tf=0.1μs, Topt=25°C) R1191x020x ECO=H
1.90
2.05
VIN=5.0V
2.10
2.15
2.20
1.95
2.00
60
30
0
0.40 0.2 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
Out
put C
urre
nt IO
UT
(mA
)Output Voltage
Output Current
Time t (ms)
Out
put V
olta
ge V
OU
T (V
)
0.1mA 30mA
R1191x020x ECO=H R1191x020x ECO=L
1.8
2.1
VIN=5.0V
2.2
2.3
2.4
1.9
2.0
300
150
0
800 40 120 160 200 240 280 320 360 400
Out
put C
urre
nt IO
UT
(mA
)
Output Voltage
Output Current
Time t (μs)
Out
put V
olta
ge V
OU
T (V
)
1mA 150mA
1.8
2.1
VIN=5.0V
2.2
2.3
2.4
1.9
2.0
20
10
0
Out
put C
urre
nt IO
UT
(mA
)
Output Voltage
Output Current
Out
put V
olta
ge V
OU
T (V
)
1mA 10mA
0.80 0.4 1.2 1.6 2.0 2.4 2.8 3.2 3.6 4.0Time t (ms)
R1191x020x ECO=H R1191x020x ECO=L
1.8
2.1
VIN=5.0V
2.2
2.3
2.4
1.9
2.0
400
200
0
Out
put C
urre
nt IO
UT
(mA
)
Output Voltage
Output Current
Out
put V
olta
ge V
OU
T (V
)
1mA 300mA
0.20 0.1 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0Time t (ms)
1.8
2.1
VIN=5.0V
2.2
2.3
2.4
1.9
2.0
350
300
250
200
150
100
50
Out
put C
urre
nt IO
UT
(mA
)
Output Voltage
Output Current
Out
put V
olta
ge V
OU
T (V
)
250mA 300mA
0.20 0.1 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0Time t (ms)
R1191x
22
R1191x050x ECO=H
4.90
5.05
VIN=8.0V
5.10
5.15
5.20
4.95
5.00
60
30
0
0.40 0.2 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0O
utpu
t Cur
rent
IOU
T (m
A)
Output Voltage
Output Current
Time t (ms)
Out
put V
olta
ge V
OU
T (V
)
0.1mA 30mA
R1191x050x ECO=H R1191x050x ECO=L
4.8
5.1
VIN=8.0V
5.2
5.3
5.4
4.9
5.0
300
150
0
800 40 120 160 200 240 280 320 360 400
Out
put C
urre
nt IO
UT
(mA
)
Output Voltage
Output Current
Time t (μs)
Out
put V
olta
ge V
OU
T (V
)
1mA 150mA
4.8
5.1
VIN=8.0V
5.2
5.3
5.4
4.9
5.0
20
10
0
Out
put C
urre
nt IO
UT
(mA
)
Output Voltage
Output Current
Out
put V
olta
ge V
OU
T (V
)
1mA 10mA
0.80 0.4 1.2 1.6 2.0 2.4 2.8 3.2 3.6Time t (ms)
R1191x050x ECO=H R1191x050x ECO=L
4.8
5.1
VIN=8.0V
5.2
5.3
5.4
4.9
5.0
400
200
0
Out
put C
urre
nt IO
UT
(mA
)
Output Voltage
Output Current
Out
put V
olta
ge V
OU
T (V
)
1mA 300mA
0.20 0.1 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0Time t (μs)
4.8
5.1
VIN=8.0V
5.2
5.3
5.4
4.9
5.0
350
300
250
200
150
100
50
Out
put C
urre
nt IO
UT
(mA
)
Output Voltage
Output Current
Out
put V
olta
ge V
OU
T (V
)
250mA 300mA
0.20 0.1 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0Time t (ms)
R1191x
23
R1191x150x ECO=H
14.90
15.05
VIN=16.0V
15.10
15.15
15.20
14.95
15.00
60
30
0
0.40 0.2 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0O
utpu
t Cur
rent
IOU
T (m
A)
Output Voltage
Output Current
Time t (ms)
Out
put V
olta
ge V
OU
T (V
)
0.1mA 30mA
R1191x150x ECO=H R1191x150x ECO=L
14.8
15.1
VIN=16.0V
15.2
15.3
15.4
14.9
15.0
300
150
0
Out
put C
urre
nt IO
UT
(mA
)
Output Voltage
Output Current
Out
put V
olta
ge V
OU
T (V
)
1mA 150mA
0.20 0.1 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0Time t (ms)
14.8
15.1
VIN=16.0V
15.2
15.3
15.4
14.9
15.0
20
10
0
Out
put C
urre
nt IO
UT
(mA
)
Output Voltage
Output Current
Out
put V
olta
ge V
OU
T (V
)
1mA 10mA
0.80 0.4 1.2 1.6 2.0 2.4 2.8 3.2Time t (ms)
R1191x150x ECO=H R1191x150x ECO=L
14.8
15.1
VIN=16.0V
15.2
15.3
15.4
14.9
15.0
400
200
0
Out
put C
urre
nt IO
UT
(mA
)
Output Voltage
Output Current
Out
put V
olta
ge V
OU
T (V
)
1mA 300mA
0.40 0.2 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0Time t (ms)
VIN=16.0V350
300
250
200
150
100
50
Out
put C
urre
nt IO
UT
(mA
)
Output Voltage
Output Current
Out
put V
olta
ge V
OU
T (V
)
250mA 300mA
14.8
15.1
15.2
15.3
15.4
14.9
15.0
0.40 0.2 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0Time t (ms)
R1191x
24
14) Inrush Current at Turn on(C1=2.2μF, C2=4.7μF, tr=0.1μs, Topt=25°C) R1191x020x ECO=H R1191x020x ECO=L
IOUT=1mA
2
4
6
0
500
250
0
750
0 400 800 1200 1600
Inru
sh C
urre
nt (m
A)
Output Voltage
Inrush Current
Time t (μs)
CE Input Voltage
CE
Inpu
t Vol
tage
VC
E (V
)O
utpu
t Vol
tage
VO
UT
(V)
IOUT=1mA
2
4
6
0
500
250
0
0 2 4 6 8
Inru
sh C
urre
nt (m
A)
Output Voltage
Inrush Current
Time t (ms)
CE Input Voltage
CE
Inpu
t Vol
tage
VC
E (V
)O
utpu
t Vol
tage
VO
UT
(V)
R1191x020x ECO=H R1191x020x ECO=L
IOUT=30mA
2
4
6
0
500
250
0
750
800 160 240 320 400
Inru
sh C
urre
nt (m
A)
Output Voltage
Inrush Current
Time t (μs)
CE
Inpu
t Vol
tage
VC
E (V
)O
utpu
t Vol
tage
VO
UT
(V)
CE Input Voltage
IOUT=30mA
2
4
6
0
500
250
0
4000 800 1200 1600 2000In
rush
Cur
rent
(mA
)
Output Voltage
Inrush Current
Time t (μs)
CE
Inpu
t Vol
tage
VC
E (V
)O
utpu
t Vol
tage
VO
UT
(V)
CE Input Voltage
R1191x020x ECO=H R1191x020x ECO=L
IOUT=150mA
2
4
6
0
500
250
0
750
0 160 240 320 400
Inru
sh C
urre
nt (m
A)
Output Voltage
Inrush Current
Time t (μs)
CE
Inpu
t Vol
tage
VC
E (V
)O
utpu
t Vol
tage
VO
UT
(V)
CE Input Voltage
IOUT=150mA
2
4
6
0
500
250
0
4000 800 1200 1600 2000
Inru
sh C
urre
nt (m
A)
Output Voltage
Inrush Current
Time t (μs)
CE
Inpu
t Vol
tage
VC
E (V
)O
utpu
t Vol
tage
VO
UT
(V)
CE Input Voltage
R1191x
25
R1191x020x ECO=H R1191x020x ECO=L
IOUT=300mA
2
4
6
0
500
250
0
4000 800 1200 1600 2000In
rush
Cur
rent
(mA
)
Output Voltage
Inrush Current
Time t (μs)
CE
Inpu
t Vol
tage
VC
E (V
)O
utpu
t Vol
tage
VO
UT
(V)
CE Input Voltage
IOUT=300mA
2
4
6
0
500
250
0
750
0 160 240 320 400
Inru
sh C
urre
nt (m
A)
Output Voltage
Inrush Current
Time t (μs)
CE
Inpu
t Vol
tage
VC
E (V
)O
utpu
t Vol
tage
VO
UT
(V)
CE Input Voltage
R1191x050x ECO=H R1191x050x ECO=L
IOUT=1mA
5
10
15
0
500
250
0
750
800 160 240 320 400
Inru
sh C
urre
nt (m
A)
Output Voltage
Inrush Current
Time t (μs)
CE
Inpu
t Vol
tage
VC
E (V
)O
utpu
t Vol
tage
VO
UT
(V)
CE Input Voltage
IOUT=1mA
5
10
15
0
500
250
0
20 4 6 8 10
Inru
sh C
urre
nt (m
A)
Output Voltage
Inrush Current
Time t (ms)
CE
Inpu
t Vol
tage
VC
E (V
)O
utpu
t Vol
tage
VO
UT
(V)
CE Input Voltage
R1191x050x ECO=H R1191x050x ECO=L
IOUT=30mA
5
10
15
0
500
250
0
750
800 160 240 320 400
Inru
sh C
urre
nt (m
A)
Output Voltage
Inrush Current
Time t (μs)
CE
Inpu
t Vol
tage
VC
E (V
)O
utpu
t Vol
tage
VO
UT
(V)
CE Input Voltage
IOUT=30mA
5
10
15
0
500
250
0
4000 800 1200 1600 2000
Inru
sh C
urre
nt (m
A)
Output Voltage
Inrush Current
Time t (μs)
CE
Inpu
t Vol
tage
VC
E (V
)O
utpu
t Vol
tage
VO
UT
(V)
CE Input Voltage
R1191x
26
R1191x050x ECO=H R1191x050x ECO=L
IOUT=150mA
5
10
15
0
500
250
0
750
800 160 240 320 400In
rush
Cur
rent
(mA
)
Output Voltage
Inrush Current
Time t (μs)
CE
Inpu
t Vol
tage
VC
E (V
)O
utpu
t Vol
tage
VO
UT
(V)
CE Input Voltage
IOUT=150mA
5
10
15
0
500
250
0
750
4000 800 1200 1600 2000
Inru
sh C
urre
nt (m
A)
Output Voltage
Inrush Current
Time t (μs)
CE
Inpu
t Vol
tage
VC
E (V
)O
utpu
t Vol
tage
VO
UT
(V)
CE Input Voltage
R1191x050x ECO=H R1191x050x ECO=L
IOUT=300mA
5
10
15
0
500
250
0
750
800 160 240 320 400
Inru
sh C
urre
nt (m
A)
Output Voltage
Inrush Current
Time t (μs)
CE
Inpu
t Vol
tage
VC
E (V
)O
utpu
t Vol
tage
VO
UT
(V)
CE Input Voltage
IOUT=300mA
5
10
15
0
500
250
0
750
4000 800 1200 1600 2000
Inru
sh C
urre
nt (m
A)
Output Voltage
Inrush Current
Time t (μs)
CE
Inpu
t Vol
tage
VC
E (V
)O
utpu
t Vol
tage
VO
UT
(V)
CE Input Voltage
R1191x150x ECO=H R1191x150x ECO=L
IOUT=1mA
500
250
0
750
2000 400 600 800 1000
Inru
sh C
urre
nt (m
A)
Output Voltage
Inrush Current
Time t (μs)
CE
Inpu
t Vol
tage
VC
E (V
)O
utpu
t Vol
tage
VO
UT
(V)
CE Input Voltage
10
15
20
5
0
IOUT=1mA
10
15
20
5
0 500
250
0
750
4000 800 1200 1600 2000
Inru
sh C
urre
nt (m
A)
Output Voltage
Inrush Current
Time t (μs)
CE
Inpu
t Vol
tage
VC
E (V
)O
utpu
t Vol
tage
VO
UT
(V)
CE Input Voltage
R1191x
27
R1191x150x ECO=H R1191x150x ECO=L
IOUT=30mA
500
250
0
750
2000 400 600 800 1000In
rush
Cur
rent
(mA
)
Output Voltage
Inrush Current
Time t (μs)
CE
Inpu
t Vol
tage
VC
E (V
)O
utpu
t Vol
tage
VO
UT
(V)
CE Input Voltage
10
15
20
5
0
IOUT=30mA
500
250
0
750
Inru
sh C
urre
nt (m
A)
Output Voltage
Inrush Current
Time t (μs)
CE
Inpu
t Vol
tage
VC
E (V
)O
utpu
t Vol
tage
VO
UT
(V)
CE Input Voltage
10
15
20
5
0
4000 800 1200 1600 2000
R1191x150x ECO=H R1191x150x ECO=L
IOUT=150mA
500
250
0
750
2000 400 600 800 1000
Inru
sh C
urre
nt (m
A)
Output Voltage
Inrush Current
Time t (μs)
CE
Inpu
t Vol
tage
VC
E (V
)O
utpu
t Vol
tage
VO
UT
(V)
CE Input Voltage
10
15
20
5
0
IOUT=150mA
500
250
0
750
Inru
sh C
urre
nt (m
A)
Output Voltage
Inrush Current
Time t (μs)
CE
Inpu
t Vol
tage
VC
E (V
)O
utpu
t Vol
tage
VO
UT
(V)
CE Input Voltage
10
15
20
5
0
4000 800 1200 1600 2000
R1191x150x ECO=H R1191x150x ECO=L
IOUT=300mA
500
250
0
750
2000 400 600 800 1000
Inru
sh C
urre
nt (m
A)
Output Voltage
Inrush Current
Time t (μs)
CE
Inpu
t Vol
tage
VC
E (V
)O
utpu
t Vol
tage
VO
UT
(V)
CE Input Voltage
10
15
20
5
0
IOUT=300mA
500
250
0
750
Inru
sh C
urre
nt (m
A)
Output Voltage
Inrush Current
Time t (μs)
CE
Inpu
t Vol
tage
VC
E (V
)O
utpu
t Vol
tage
VO
UT
(V)
CE Input Voltage
10
15
20
5
0
4000 800 1200 1600 2000
R1191x
28
15) Turn Off Speed with CE pin (D Version) (C1=2.2μF, C2=4.7μF, tf=0.1μs, Topt=25°C) R1191x020D R1191x050D
2
VIN=5.0V
4
5
3
0
1
10
5
0
0.40 0.8 1.2 1.6 2.0 2.4 2.8 3.2
CE
Inpu
t Vol
tage
VC
E (V
)
Output Voltage
Time t (ms)
Out
put V
olta
ge V
OU
T (V
)
CE Input Voltage
IOUT=0mAIOUT=30mAIOUT=150mAIOUT=300mA
4
VIN=8.0V
8
10
6
0
2
10
5
0
0.40 0.8 1.2 1.6 2.0 2.4 2.8 3.2
CE
Inpu
t Vol
tage
VC
E (V
)
Output Voltage
Time t (ms)O
utpu
t Vol
tage
VO
UT
(V)
CE Input Voltage
IOUT=0mAIOUT=30mAIOUT=150mAIOUT=300mA
R1191x150D
16
VIN=16.0V
32
40
24
0
8
20
10
0
0.40 0.8 1.2 1.6 2.0 2.4 2.8 3.2
CE
Inpu
t Vol
tage
VC
E (V
)
Output Voltage
Time t (ms)
Out
put V
olta
ge V
OU
T (V
)
CE Input Voltage
IOUT=0mAIOUT=30mAIOUT=150mAIOUT=300mA
R1191x
29
16) Output Voltage at Mode alternative point (C1=2.2μF, C2=4.7μF, tr=tf=0.1μs, Topt=25°C) R1191x020x R1191x050x
1.80
2.052.00
1.901.85
1.95
1.80
2.052.00
1.901.85
1.95
1.80
2.052.00
1.901.85
1.95
1.80
2.052.00
1.901.85
1.95
1.80
2.052.00
1.901.85
1.95
1.80
2.052.00
1.901.85
1.95
VIN=5.0V8
46
20
EC
O In
put V
olta
ge V
EC
O (V
)
IOUT=1mA
ECO Input Voltage
IOUT=10mA
IOUT=50mA
IOUT=100mA
IOUT=150mA
IOUT=300mA
Out
put V
olta
ge V
OU
T (V
)
Time t (ms)-2 876543210-1
4.74.8
5.04.9
5.1
4.84.7
5.04.9
5.1
4.84.7
5.04.9
5.1
4.84.7
5.04.9
5.1
4.84.7
5.04.9
5.1
4.84.7
5.04.9
5.1
VIN=8.0V
Time t (ms)-2 876543210-1
1510
50
EC
O In
put V
olta
ge V
EC
O (V
)
IOUT=1mA
IOUT=10mA
IOUT=50mA
IOUT=100mA
IOUT=150mA
IOUT=300mA
Out
put V
olta
ge V
OU
T (V
)
ECO Input Voltage
R1191x020x R1191x050x
VIN=5.0V
-0.2 1.81.61.41.21.00.80.60.40.20
ECO
Inpu
t Volt
age
VECO
(V)
Out
put V
olta
ge V
OUT
(V)
1.801.85
2.05
1.951.90
2.00
6
24
0
IOUT=0mA
Time t (s)
ECO Input Voltage
VIN=8.0V
-0.2 3.20 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.04.7
5.1
4.94.8
5.0
1510
50
IOUT=0mA
Time t (s)
ECO
Inpu
t Vol
tage
VEC
O (V
)
Out
put V
olta
ge V
OU
T (V
)
ECO Input Voltage
R1191x
30
R1191x150x
14.7
15.1
14.914.8
15.0
14.7
15.1
14.914.8
15.0
14.7
15.1
14.914.8
15.0
14.7
15.1
14.914.8
15.0
14.7
15.1
14.914.8
15.0
14.7
15.1
14.914.8
15.0
VIN=16.0V
Time t (ms)-2 876543210-1
EC
O In
put V
olta
ge V
EC
O (V
)
IOUT=1mA
ECO Input Voltage
IOUT=10mA
IOUT=50mA
IOUT=100mA
IOUT=150mA
IOUT=300mA
Out
put V
olta
ge V
OU
T (V
)
302010
0
R1191x150x
VIN=16.0V
ECO
Inpu
t Vol
tage
VEC
O (V
)
Out
put V
olta
ge V
OU
T (V
)
14.714.8
15.014.9
15.1
3020100
IOUT=0mA
Time t (s)-0.2 3.00 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8
ECO Input Voltage
R1191x
31
17) Thermal Shutdown Circuit (C1=2.2μF, C2=4.7μF, VIN=16V, RLOAD=1kΩ) R1191x050x ECO=H R1191x050x ECO=L
25 65 105
Out
put V
olta
ge V
OU
T (V
)
1
4
8
2
6
5
3
7
0
Temperature Topt (°C)
45 85 130 150
25 65 105
Out
put V
olta
ge V
OU
T (V
)
1
4
8
2
6
5
3
7
0
Temperature Topt (°C)
45 85 130 150
R1191x
32
ESR vs. Output Current When using these ICs, consider the following points: The relations between IOUT (Output Current) and ESR of an output capacitor are shown below. The conditions when the white noise level is under 40μV (Avg.) are marked as the hatched area in the graph.
Measurement conditions
Frequency Band : 10Hz to 1MHz Temperature : −40°C to 85°C Hached Area : Noise level is under 40μVms(Avg.) CIN : 2.2μF Murata (GRM32RB11E225KC01B) COUT : 4.7μF Murata (GCM31CR71E475KA40)
R1191x020x ECO=H, ECO=L R1191x050x ECO=H, ECO=L
0 100 200 300
Output Current IOUT (mA)
ES
R (Ω
)
0.01
100
1
0.1
10
0 100 200 300
Output Current IOUT (mA)
ES
R (Ω
)
0.01
100
1
0.1
10
R1191x150x ECO=H, ECO=L
0 100 200 300
Output Current IOUT (mA)
ES
R (Ω
)
0.01
100
1
0.1
10
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2. The materials in this document may not be copied or otherwise reproduced in whole or in part without prior written consent of Ricoh.
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5. The products listed in this document are intended and designed for use as general electronic components in standard applications (office equipment, telecommunication equipment, measuring instruments, consumer electronic products, amusement equipment etc.). Those customers intending to use a product in an application requiring extreme quality and reliability, for example, in a highly specific application where the failure or misoperation of the product could result in human injury or death (aircraft, spacevehicle, nuclear reactor control system, traffic control system, automotive and transportation equipment, combustion equipment, safety devices, life support system etc.) should first contact us.
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7. Anti-radiation design is not implemented in the products described in this document. 8. The X-ray exposure can influence functions and characteristics of the products. Confirm the product functions and
characteristics in the evaluation stage. 9. WLCSP products should be used in light shielded environments. The light exposure can influence functions and
characteristics of the products under operation or storage. 10. There can be variation in the marking when different AOI (Automated Optical Inspection) equipment is used. In the
case of recognizing the marking characteristic with AOI, please contact Ricoh sales or our distributor before attempting to use AOI.
11. Please contact Ricoh sales representatives should you have any questions or comments concerning the products or the technical information.
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