TPS54341_15 datasheet(33/48 Pages) TI

Part #	TPS54341

Description	4.5-V to 42-V Input, 3.5-A Step-Down DC-DC Converter With Soft-Start and Eco-mode?

PDF	48 Pages

Scroll/Zoom	100%

Manufacturer	TI [Texas Instruments]

Direct Link	http://www.ti.com

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33 / 48 page

46.1 pF

11.5 k

600 kHz

´ p

W ´

´ p

OUT

ESR

x R

70 F x 5 m

30.4 pF

11.5 k

TPS54341

www.ti.com

SLVSC61 – NOVEMBER 2013

A compensation pole can be implemented if desired by adding capacitor C8 in parallel with the series

combination of R4 and C5. Use the larger value calculated from Equation 54 and Equation 55 for C8 to set the

compensation pole. The selected value of C8 is 47 pF for this design example.

(54)

(55)

Discontinuous Conduction Mode and Eco-mode Boundary

With an input voltage of 12 V, the power supply enters discontinuous conduction mode when the output current

is less than 340 mA. The power supply enters Eco-mode when the output current is lower than 30 mA. The input

current draw is 260

μA with no load.

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TPS54341 Datasheet(PDF) 33 Page - Texas Instruments