TLV62084A: Reducing Input Capacitance

Michael Balourdas

Part Number: TLV62084A

Hello,

My customer is testing TLV62084A and they have a 10uF capacitor on the input as recommended, but are wondering if this value can be reduced. They are seeing some in-rush current that is higher than they would like, and reducing this input capacitance shows a reduction in that in-rush current. Can a lower Cin be used without causing this device to go unstable or out of regulation?

Vin = 2.7 to 5.5V

Vout = 1.85V

Iout = <1mA in idle, and <30mA average in run mode

Thanks,

Michael

over 2 years ago

+1 Farheen over 2 years ago

TI__Genius 10600 points

Hello Michael,

Decrease of input capacitance to reduce the inrush current might come at the cost of instability in input voltage (higher Vin overshoot) that can result in exceed of Vin over the absolute max. rating.

So it is not recommended to do so.

Thanks and Best Regards,

Farheen

0 Farheen over 2 years ago in reply to Farheen

TI__Genius 10600 points

Hello Michael,

If you do not have any more questions, please feel free to close the issue.

Thanks and Best Regards,

Farheen

Power management

Power management forum

TLV62084A: Reducing Input Capacitance