LMR70503: Can be used for Vin=3.3 or 5.5V, Vo=-3.3V, Io(max)=10mA and Vout ripple <33mVpp ?

Kazuhiko Hirano

Part Number: LMR70503

Hello,

Q1:
Can LMR70503 be used to meet the following design requirements?
VIN = 3.3V or 5V
Vout = -3.3V
Vout ripple <33mVpp
Iout(max) = 10mA

Q2:
WeBench simulation is not available for LMR70503?

Q3:
Any smaller package TI device to meet the same design requirements?

Best regards,

K.Hirano

over 2 years ago

0 Yinsong Cai1 over 2 years ago

TI__Expert 7450 points

Hello K.Hirano,

Thank you for reaching out.

I have assigned the post to our engineers but they are currently out of office. They should receive and reply before Close Of Business (COB) next Wednesday.

Thank you for your patience!

Best,

Yinsong

+1 dehuan Qi over 2 years ago in reply to Yinsong Cai1

TI__Intellectual 2775 points

Hi K.Hirano,

Thank you for waiting.

Q1, Yes, it is 2.8V to 5.5V input voltage range. It is OK for you.

Q2, No WeBench for this parts.

Q3, This is the smallest fit for this design.

BR Dehuan

0 Kazuhiko Hirano over 2 years ago in reply to dehuan Qi

TI__Genius 11613 points

Dehuan,

Thank you for your confirmation!

Best regards,

K.Hirano

Power management

Power management forum

LMR70503: Can be used for Vin=3.3 or 5.5V, Vo=-3.3V, Io(max)=10mA and Vout ripple <33mVpp ?