TPS65145 datasheet(17/32 Pages) TI

Part #	TPS65145

Description	TRIPLE OUTPUT LCD SUPPLY WITH LINEAR REGULATOR AND POWER GOOD

PDF	32 Pages

Scroll/Zoom	100%

Manufacturer	TI [Texas Instruments]

Direct Link	http://www.ti.com

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17 / 32 page

CC = 1 nF

TPS65140, TPS65141

TPS65145

www.ti.com

SLVS497E – SEPTEMBER 2003 – REVISED NOVEMBER 2012

Figure 19. CC = 1 nF

Lastly, Rc needs to be selected. A good practice is to use a 50-kΩ potentiometer and adjust the potentiometer for

the best load transient where no oscillations should occur. These tests have to be done at the highest Vin and

highest load current because the converter stability is most critical under these conditions. Figure 20, Figure 21,

and Figure 22 show the fine tuning of the loop with Rc.

Figure 20. Overcompensated (Damped Oscillation), RC Is Too Large

Figure 21. Undercompensated (Loop Is Too Slow), RC Is Too Small

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Product Folder Links: TPS65140 TPS65141 TPS65145

TPS65145 Datasheet(PDF) 17 Page - Texas Instruments