500 mA DC-DC Step Down Converter P78F-Series mA DC-DC Step Down Converter P78F-Series Wide input...

500 mA DC-DC Step Down Converter P78F-Series

● Wide input Range, up to 72 V ● Non isolated ● 3 Pin SIL ● Pin compatible with 78xx linear regulator ● Efficiency up to 95% ● Operating temperature range -40...+85°C ● Continuous short circuit protected ● Thermal shut down

Model guide

Suffix “B” for 90° bent lead version Specifications

1. The output load should not be less than 10 %. 2. The external output capacitor should not be too large (recommend < 10 μF), otherwise ripple will increase

dramatically. 3. Operation under 10 % load will not damage the converter. However, they may not meet all specification listed 4. All specifications measured at Ta 25 °C, humidity < 75 %, nominal input voltage and rated output load unless

otherwise specified.

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Input current Output Efficiency

Type

Input voltage range

[VDC]

No load

[mA]

Voltage

[VDC]

Current range [mA]

Capacitive load max.

[µF]

@ Vin min.

[%]

@ Vin max.

[%] P78F3R3T05 9…72 1…5 3.3 10…500 100 82 75 P78F05T05 9…72 1…5 5.0 10…500 100 87 81 P78F6R5T05 9…72 1…5 6.5 10…500 100 91 84 P78F09T05 14…72 1…5 9.0 10…500 100 92 86 P78F12T05 17…72 1…5 12.0 10…500 100 93 89 P78F15T05 20…72 1…5 15.0 10…500 100 94 90 P78F24T03 36…72 1…5 24.0 6…300 100 95 91

Output Voltage accuracy ± 3 %, max. Input voltage regulation ± 1 %, max. Load regulation ± 0.6 % @ load 10..100 % Temperature coefficient ± 0.015 % / °C Ripple and noise (at 20 MHz BW)

60 mVp-p, max. (refer figure 2)

Short circuit protection not limited, automatic recovery

Thermal shutdown 160 °C, typ. internal temp. Output current limit 1.2 A, typ. Input Short circuit input power 1.2 W, max. General Switching frequency 120…800 kHz, range Reliability calc. MTBF MIL-HDBK-217F

> 3.5 Mio. h @ 25 °C > 1.5 Mio. h @ 71 °C

EMI EMI conducted RFI conducted

EN55022, class B (refer figure 2)

ESD IEC/EN 61000-4-2 level 4 Safety standard EN60950-1 Environmental Operating ambient temperature

-40 °C ... +85 °C Derating > 71 °C

Case temperature 100 °C, max. Storage temperature -55 °C ... +125 °C Storage Humidity Up to 95%,

non condensing Cooling free air convection Physical Thermal resistance 60 K/W Dimensions 17.5 x 11.5 x 9 mm Weight 4 g Case material Plastic UL94-V0 Soldering temperature 1.5 mm distance to case

300°C for 10s

Deutschland: Schweiz: Inselkammerstraße 10 Gründenstrasse 82 D-82008 Unterhaching CH-8247 Flurlingen Tel.: 089 614 503-10 Tel.: 052 647 42 00 E-Mail: [email protected] E-Mail: [email protected]


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500 mA DC-DC Step Down Converter P78F-Series Dimensions Standard version Bent version

Pin Connections 1 +V Input 2 GND 3 +V Output

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500mA DC-DC Step Down Converter P78F-Series 1. C1 should be fitted close to the converter pins. 2. The external capacitor C1 must be added on the input, to prevent voltage transients caused by damage to the

module. 3. The regulator proposed to establish the input voltage by soft start. If the input voltage changes from low voltage

to high voltage abruptly, the regulator might be damaged. 4. Not usable for plug and play applications. 5. Do not use more regulators in parallel operation.

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PHI-CON is a trademark of HY-LINE Holding GmbH. Only for professional use by professionals! Not for resale or distribution to the general public in any way! Read the instructions for use carefully before using! Life Support Policy: HY-LINE does not authorize the use of any of its products for use in life support devices or systems without the express written approval of an officer of the Company. Life support systems are devices which support or sustain life, and whose failure to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user. Rev: 01.15 f

Fig. 1 Typical regulator circuit

GND

+Vout 1

+Vin

GND

C1 10 µF Ceramic

P78F

2

3

Fig. 4 Output filter circuit

10…47 µH

GND

+Vout +Vin

GND

P78F

10 µF ceramic

22 µF ceramic

1

2

3

0.5..2 mH

Fig. 2 Recommended EMC circuit

+Vout +Vin

GND

P78F

1..3.3 µF ceramic

0.68..2.2 µFceramic

1

2

3

GND

330 µF Load

500 mA DC-DC Step Down Converter P78F-Series mA DC-DC Step Down Converter P78F-Series Wide input...

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