1000 mA DC-DC Step Down Converter P78B-Series ● ● ● ● ● ● ● Non isolated 3 Pin SIL Pin compatible with 78xx linear regulator Efficiency up to 97% Operating temperature range -40...+85°C Continuous short circuit protected Thermal shut down Model selection guide Typ P78B1R5T10 P78B1R8T10 P78B2R5T10 P78B3R3T10 P78B05T10 P78B6R5T10 P78B09T10 P78B12T10 P78B15T10 Input voltage range Input current No-load Voltage Output Current [VDC] 4.75...26 4.75...26 4.75...28 4.75...28 6.5...32 9...32 12...32 16...32 20...32 [mA] 5…8 5…8 5…8 5…8 5…8 5…8 5…8 5…8 5…8 [VDC] 1.5 1.8 2.5 3.3 5.0 6.5 9.0 12.0 15.0 [mA] 1000 1000 1000 1000 1000 1000 1000 1000 1000 Capacitive load max. [µF] 1000 1000 1000 1000 1000 1000 1000 1000 1000 Efficiency @ Vin min. @ Vin max. [%] [%] 80 83 88 90 93 94 95 96 97 71 74 80 83 88 90 92 94 94 Suffix “B” for bent lead version Specifications Output Voltage accuracy Input voltage regulation Load regulation Temperature coefficient Ripple and noise (at 20 MHz BW) Short circuit protection Thermal shutdown Output current limit Input Short circuit input power General Switching frequency Reliability calc. MTBF @ 25°C MIL-HDBK-217F ± 3 %, max. ± 0.4 %, max. ± 0.6 % @ load 10..100 % ± 0.02 % / °C 35 mVp-p, max. not limited, automatic recovery 150 °C, typ. internal temp. 3 A, typ. 1.8 W, max. 330 kHz, typ. >2 Mio. h Environmental Operating ambient temperature Case temperature Storage temperature Derating Humidity Cooling Physical Dimensions Weight Case material Soldering temperature 1,5mm distance from case -40 °C ... +85 °C 100 °C, max. -55 °C ... +125 °C see diagram Up to 95%, non-condensing free air convection SIP3 17.5 x 11.5 x 9 mm 3.7 g Plastic UL94-V0 300°C for 10s Page 1 of 4 Deutschland: Inselkammerstraße 10 D-82008 Unterhaching Tel.: 089 614 503-10 E-Mail: [email protected] Schweiz: Gründenstrasse 82 CH-8247 Flurlingen Tel.: 052 647 42 00 E-Mail: [email protected] 1000 mA DC-DC Step Down Converter P78B-Series Page 2 of 4 Deutschland: Inselkammerstraße 10 D-82008 Unterhaching Tel.: 089 614 503-10 E-Mail: [email protected] Schweiz: Gründenstrasse 82 CH-8247 Flurlingen Tel.: 052 647 42 00 E-Mail: [email protected] 1000 mA DC-DC Step Down Converter P78B-Series Dimensions Standard version Bent version Pin 1 2 3 Connections +V Input GND +V Output Page 3 of 4 Deutschland: Inselkammerstraße 10 D-82008 Unterhaching Tel.: 089 614 503-10 E-Mail: [email protected] Schweiz: Gründenstrasse 82 CH-8247 Flurlingen Tel.: 052 647 42 00 E-Mail: [email protected] 1000mA DC-DC Step Down Converter P78B-Series Fig. 1 Typical regulator circuit +Vout P78B +Vin C1 See tabel C2 See tabel GND GND Fig. 3 Input filter circuit +Vin +Vout P78B 10~47µH 10µF ceramic 10µF ceramic GND GND Fig. 4 Output filter circuit P78B +Vin +Vout 10~47µH 22µF ceramic 10µF ceramic 10µF ceramic GND GND Part number P78B1R5T10 P78B1R8T10 P78B2R5T10 P78B3R3T10 P78B05T10 P78B6R5T10 P78B09T10 P78B12T10 P78B15T10 C1 10 µF, 50V, ceramic 10 µF, 50V, ceramic 10 µF, 50V, ceramic 10 µF, 50V, ceramic 10 µF, 50V, ceramic 10 µF, 50V, ceramic 10 µF, 50V, ceramic 10 µF, 50V, ceramic 10 µF, 50V, ceramic C2 22 µF, 6.3V, ceramic 22 µF, 6.3V, ceramic 22 µF, 6.3V, ceramic 22 µF, 6.3V, ceramic 22 µF, 16V, ceramic 10 µF, 16V, ceramic 10 µF, 16V, ceramic 10 µF, 25V, ceramic 10 µF, 25V, ceramic 1. C1 and C2 are required and should be fitted close to the converter pins. 2. The capacitance of C1, C2 sees external capacitor table. It can be increased properly if required, and tantalum or low ESR electrolytic capacitors may also suffice. 3. Not for parallel connection or plug and play operation! 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: 11.14 f Page 4 of 4 Deutschland: Inselkammerstraße 10 D-82008 Unterhaching Tel.: 089 614 503-10 E-Mail: [email protected] Schweiz: Gründenstrasse 82 CH-8247 Flurlingen Tel.: 052 647 42 00 E-Mail: [email protected]