TPS62140: switching frequency deviation

user5942764

Prodigy 20 points

Part Number: TPS62140
Other Parts Discussed in Thread: TPS62147

I want to know. Switching frequency deviation

· TPS 62140 RGTR

When using 1.25 MHz
Ambient temperature of IC 0 to 70 ° C
VIN 5 to 9.5 V
VOUT = 3.3 V
Average current = about 50 mA

I want to know the swing width to "-" side of 1.25 MHz in particular. It is OK rather than guaranteed value.

vest regards

over 6 years ago

0 Chris Glaser over 6 years ago

TI__Guru**** 150950 points

Hi User,

I recommend that you take a look at the newer, smaller, more accurate, more efficient TPS62147/8. This one also contains a forced PWM mode feature, which disabled the power save mode. I think you would like for your application?

This app note, found on the product page, discusses why the frequency varies in DCS-Control: www.ti.com/.../slyt646.pdf

0 user5942764 over 6 years ago in reply to Chris Glaser

Prodigy 20 points

thank you for answer

Power management

Power management forum

TPS62140: switching frequency deviation