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- PMP7979 Test Results
(PDF 1094 KB)
07 Mar 2016 73 views
PMP7979 is a synchronous dual-phase boost power supply using the LM5122 controllers. The design accepts an input voltage of 12 V to 67 V, and boosts a 54-V output rail that is capable of sourcing 4.8-A continuous current. The LM5122 has an internal current source to keep the high-side FET to run at 100% duty cycle, which allows a bypass operation when the input voltage is greater than the configured output voltage.
- 12 Vin to 67 Vin, 54 Vout at 5-A out; IC capable of 4.5 Vin to 65 Vin
- 260-W Pout
- Peak efficiency at 98%
- Switching frequency 100 kHz per phase (200 kHz)
- Board size: 4 in x 3 in