I'm having some trouble with my LT3514 PMIC (TSSOP package), where it shows short-circuited behavior somewhere in my design.
When powered on from the bench power supply with no load, I heard some inductor noises & bench power supply also hit the current limit (I set it to 0.15A) immediately.
I also measured the voltages from the output rails. Rail 1(SW1) is outputting 0.12V, SW3 with 0.025V, and SW4 with 0.087V.
The PCB only has the PMIC. The output rails are routed to the board-to-board connectors.
The screenshot below is my schematics:
The Vin is ranging from 6.8 - 12V.
Output rail #1 (SW1) set to 3.3V/1A. A 4.7uH (Part# 78438356047HT) inductor was used. The catch diode part number is SSA14.
Output rail #3 (SW3) set to 5.25V/2A. An 8.2uH (Part# 78438357082) inductor was used. The catch diode part number is SSA24-E3/61T.
Output rail #4 (SW4) set to 1.1V/1A. A 4.7uH (Part# 78438356047HT) inductor was used. The catch diode part number is SSA14.
SW5 I have a 10uH inductor (Part# 78438323100).
Any advice and suggestion would be highly appreciated!
