LMR62421: LMR62421 output

Eric Shen42

Part Number: LMR62421

Dear TI:
My customer would like to know whether LMR62421 will have a sudden increase in output under certain conditions.Such as normal output 9V, abnormal output peak pulse voltage 12V. Do output anomalies occur when the input voltage fluctuates frequently between 3V and 4V?

Thanks!

Regards!

Eric

over 6 years ago

0 Zack Liu over 6 years ago

TI__Mastermind 34231 points

Hi Eric,

What's the load current during vin fluctuating between 3V and 4V? How fast does Vin fluctuate between 3V and 4V?

0 Eric Shen42 over 6 years ago in reply to Zack Liu

Expert 2750 points

Hi Zack:
The output current is within 100mA, the fluctuation frequency is about 216Hz, 4V drops to 3V about 30us , and the duration of 3V is 700us.
Thanks!

Regards!
Eric

0 Zack Liu over 6 years ago in reply to Eric Shen42

TI__Mastermind 34231 points

Hi Eric,

Please see below waveform. The input voltage fluctuate between 3V and 4V. Frequency is 216 Hz. Drop time from 4V to 3V is 30us and 3V duration time is 700us. Load current is 100mA. Vout variation is no morn than 300mV.

(CH1: Vin, Ch2: Vout)

Power management

Power management forum

LMR62421: LMR62421 output