SI3402-A-GM

SILICON LABS CONFIDENTIAL
Si3402 (Buck, Non-Isolated) EVB Reference Design - 5V
See M
6
1nF
47kΩ
24.3kΩ
See M2
See M7
-M9
SILICON LABS CONFIDENTIAL
Revision Notes
26 August 2015:
Added B5 indicating the Si3402-B-EN1 samples should be run only at room temperature
Clarified Buck (Non-Isolated) case R7 to standard value 47kΩ and relaxed to 20% tolerance
28 October 2015:
Previous version silicon errata resolved
Several components in the change list updated
Document renamed “Si3402-B RevA3 Change List_<YYYYMMDD>
24 November 2015:
M2 and M6 components updated
Aligns with production Si3402-B-GM silicon
08 December 2015: (Version 0.3)
Changed title of doc and name of file
Clarified M7-M9 changes with regard to R8
21 March 2016: (Version 0.4)
Updated M3, the 3.3V Isolated Flyback case.
o Explanation: 3.3V Flyback compensation was updated to address a small overshoot
condition under no-load conditions (3.66V is allowed, the overshoot was 3.73V). The
problem is fixed with revised compensation with a resulting overshoot of about 3.5V.
o If a no-load condition is unlikely, the customer may keep the original M3 change
recommendation:
C8, R9 & C23 are not needDo not populate them
C9=3.3nF, C21=15nF, R12=0 & R8=0 (place zero Ω resistors)
Replace D2 (DFLT15A) with DFLT30A

SI3402-A-GM

Mfr. #:
Manufacturer:
Silicon Labs
Description:
Power Switch ICs - POE / LAN PoE Powered Device (up to 17W, low-EMI) - recommended for all new designs
Lifecycle:
New from this manufacturer.
Delivery:
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