TPSM82903: Load regulation and line regulation

user6142633

Part Number: TPSM82903
Other Parts Discussed in Thread: TPSM5D1806

Hi, teams

There are descriptions about the accuracy of Output Voltage Regulation(VO_Reg) and Feedback Voltage Regulation(VFB_Reg) on page 6 of the datasheet.

Do that accuracy include load regulation and line regulation?

if no, could you tell me about load regulation and line regulation?

Regards,

Hayakawa

over 1 year ago

0 Shuai Fan over 1 year ago

TI__Genius 13451 points

Hi Hayakawa!

It isn't totally equal to load regulation.

What is your input voltage, output voltage and output current?

Shuai

0 user6142633 over 1 year ago in reply to Shuai Fan

Intellectual 440 points

Hi Shunai!

My conditions is below.

Output Voltage=1.1V, Input Voltage=4.5~15V, Output Current=0~3A

Output Voltage=1.25V, Input Voltage=4.5~15V, Output Current=0~3A

Output Voltage=2.5V, Input Voltage=4.5~15V, Output Current=0~3A

Output Voltage=3.3V, Input Voltage=4.5~15V, Output Current=0~3A

Regards,

Hayakawa

0 Amod Vaze over 1 year ago

TI__Mastermind 24180 points

Yep load and line regulation is not included in that spec. The line and load regulation will be depend on your component selection and layout so would recommend checking the output voltage accuracy on the custom board you plan to use. Let me know if any more questions.

Thanks,

Amod

0 user6142633 over 1 year ago in reply to Amod Vaze

Intellectual 440 points

Hi Amod

Other products such as TPSM5D1806, have load regulation and line regulation specified in the datasheet.

Why is this product not specified?

Thanks,

Hayakawa

+1 Amod Vaze over 1 year ago in reply to user6142633

TI__Mastermind 24180 points

I am not entirely sure why more VOUT points were not included like 3.3V and 2.5V. However, Figure 8-25, Figure 8-59 and Figure 8-60 does cover some conditions like 1.2V, 1.8V and 5.5V.

Thanks,

Amod

Power management

Power management forum

TPSM82903: Load regulation and line regulation