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TPS61200EVM-179: Purpose of R1 = 100ohms on the EVM ?

Part Number: TPS61200EVM-179
Other Parts Discussed in Thread: TPS61200


Can anybody explain the purpose of resistor R1 on the EVM module ?  This resistor is only shown on the Rev E datasheet as part of the reverse battery protection circuit.

Reason I ask is that we have designed this part into a battery powered handheld application, and we're finding that in about half of the pre-production units the TPS61200 fails to start and gets warm very quickly.


Steven J. Ackerman


ACS, Sarasota, Florida