TPS61322: TPS61322 boost converter For Li-Socl2

Naig

Part Number: TPS61322

Hi,

I am trying to find suitable boost converter for my application. I have a battery Li-Socl2 (3.6V @ max continuous current 25mA) connected directly to my module (BLE antenna + UWB tranceiver) as a BLE tag device which has a requirement of voltage minimum 2.8V to 3.6V max. The typical output current for this module is shown below.

I have TPS613221AEVM connected to the module on my board to boost the power supply when it is below 2.8V, apparently the supply is not enough to during the power up of the module. Do you have any suggestion which boost converter is suitable for my application?

Thank you.

over 4 years ago

0 Jasper Li over 4 years ago

TI__Mastermind 46905 points

Hi Naig,

I'm not quite understand your question. what is the issue when using TPS613221EVM?

0 Naig over 4 years ago in reply to Jasper Li

Prodigy 250 points

The supply is too weak to initialize the module. So I am looking for alternative boost converter or any solution that would help to have stable power supply for the module with the battery I am using.

0 Jasper Li over 4 years ago in reply to Naig

TI__Mastermind 46905 points

Hi Naig,

what is the waveform of the VIN and VOUT when the module is initialized? if the power supply is too weak and the required current is too large. the boost may not help.

instead, you may need to add a supercap(or HLC) in parallel with battery for the pulse current.

Power management

Power management forum

TPS61322: TPS61322 boost converter For Li-Socl2