boost solution

user503335153

Intellectual 810 points

Other Parts Discussed in Thread: TPS61021A

Vin=2.0V~3.3V，Vout=3.3V，Ioutmax=0.35~0.5A，and low cost ，Can you recommend a solution to me？

over 7 years ago

0 Jasper Li over 7 years ago

TI__Mastermind 46905 points

Hello E2E User

I would suggest TPS61021A from this input/output condition. You can refer to its datasheet and EVM user guide to design the power solution.

0 user503335153 over 7 years ago in reply to Jasper Li

Intellectual 810 points

TPS613221A is cheaper than TPS61021A, TPS613221A is ok?

0 Jasper Li over 7 years ago in reply to user503335153

TI__Mastermind 46905 points

Hello

The maximum output current of the TPS61322A is 300mA. No sure if this current is acceptable.

0 user503335153 over 7 years ago in reply to Jasper Li

Intellectual 810 points

TPS613221A is 3.3v/1.2A in datasheet.

0 Jasper Li over 7 years ago in reply to user503335153

TI__Mastermind 46905 points

Hello

This is not the output current, but the input peak current (or inductor peak current). For a BOOST converter, the input current is always lower than output voltage. Equation (1) in datasheet page 12 suggests method to calculate the output current.

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boost solution