efficiency DCDC converter inside PMU [TPS650250PHBR].

masaya hagiwara

Intellectual 740 points

I want to know about DCDC converter inside PMU [TPS650250PHBR].

Please give me efficiency DCDC converter inside PMU.

I do not mind only with a possible thing.

The condition as follows.

【condition】

1)VDCDC1

Mode=PWM Mode

Vi=5V

Vo=0.95V

2)VDCDC3

Mode=PWM Mode

Vi=5V

Vo=0.95V

3)VDCDC3

Mode=PWM Mode

Vi=5V

Vo=3.3V

over 12 years ago

0 Michael Green over 12 years ago

TI__Genius 16870 points

Hi Masaya,

This can be taken easy using the EVM. You can order an EVM here:

http://www.ti.com/tool/tps650250evm-447

Please read this app note before you start testing. It discusses proper techniques for measuring efficiency.

http://www.ti.com/lit/an/slva236/slva236.pdf

Since, the TPS6502050 is a PMIC, you should also take a baseline input current measurement by measuring the input current with the DCDC converter disabled. Subtract that current from the recorded input currents as you measure the efficiency of the particular DCDC converter in question.

Power management

Power management forum

efficiency DCDC converter inside PMU [TPS650250PHBR].