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Power supply — bench validation #5

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opened 2026-04-15 11:42:44 +02:00 by diyon · 0 comments
diyon commented 2026-04-15 11:42:44 +02:00
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Goal

Test 12V → 3.3V power section before full PCB assembly.

Scope

  • Build standalone test board (LMR16006 + TVS + caps)
  • Verify efficiency at 12V input, 3.3V @ 300mA
  • Inject 60V transient — verify clamping
  • Measure output ripple (< 30mV RMS target)
  • Verify reverse polarity protection
  • Confirm standby current < 50µA

Pass Criteria

  • 3.3V stable at 0-300mA load
  • No damage at 60V/1s
  • Output noise < 30mV RMS

Priority: 🟡 Medium

## Goal Test 12V → 3.3V power section before full PCB assembly. ## Scope - [ ] Build standalone test board (LMR16006 + TVS + caps) - [ ] Verify efficiency at 12V input, 3.3V @ 300mA - [ ] Inject 60V transient — verify clamping - [ ] Measure output ripple (< 30mV RMS target) - [ ] Verify reverse polarity protection - [ ] Confirm standby current < 50µA ## Pass Criteria - 3.3V stable at 0-300mA load - No damage at 60V/1s - Output noise < 30mV RMS ## Priority: 🟡 Medium
diyon 2026-04-15 11:42:44 +02:00
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