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Texas Instruments LM5155QDSSTQ1 | Demoboard PMP21883
Four-output, SEPIC converter-bias power supply reference design for solar panel applications
Details
| Topologie | SEPIC Buck-Boost Topologie |
| Eingangsspannung | 5-45 V |
| Schaltfrequenz | 100-2200 kHz |
| Ausgang 1 | 12 V / 0.03 A |
| Ausgang 2 | 3.3 V / 0.25 A |
| Ausgang 3 | 12 V / 0.05 A |
| Ausgang 4 | 12 V / 0.03 A |
| IC-Revision | C |
Beschreibung
This reference design supplies two non-isolated and two isolated output voltages. It references a regulated 3.3-V/0.25-A and an unregulated 12-V/0.05-A output on the primary-side, and it isolates two 12-V/0.025-A unregulated outputs. The design operates over an input voltage range of 7 V to 45 V and offers minimal voltage ringing on the FET for lower stress and reduced EMI.
Eigenschaften
SEPIC topology eliminates FET voltage ringing for reduced stress and lower EMIFour-output single-ended primary-inductor converter (SEPIC) from single transformer provides excellent cross regulationFull load efficiency greater than 80% from 12-V and 24-V inputCompact size (30 mm x 40 mm) minimizes required PCB area
Typische Anwendungen
- Battery-Powered Boost, SEPIC, Flyback
- LED Bias Supply
- Multiple-Output Flyback Without Optocoupler / Wide Input Boost, SEPIC, Flyback Power Module
- Portable Speaker Application