Other Parts Discussed in Thread: TPS40428
- Want to know when Power Good is goes high, whether it is at input supply or at the when enable is active.
- And what is the state of PG which is pulled high with 2.5v before enable is active for TPS40428.
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Hi Dilip,
1. Power GOOD goes high only when the rail is enabled and Vout is regulated.
2. Before rail is enabled, PGOOD is pulled low internally.
Thanks
Qian