TPS53353_15 datasheet(19/37 Pages) TI

Nome de Peças	TPS53353

Descrição Electrónicos	TPS53353 High-Efficiency 20-A Synchronous Buck Converter With Eco-mode?

PDF	37 Pages

Scroll/Zoom	100%

Fabricante Electrônico	TI [Texas Instruments]

Página de início	http://www.ti.com

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TPS53353

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SLUSAK2B – AUGUST 2011 – REVISED FEBRUARY 2015

Switching frequency versus output current in the light load condition is a function of L, VIN, and VOUT, but it

decreases almost proportionally to the output current from the IOUT(LL) given in Equation 7. For example, it is 60

kHz at IOUT(LL)/5 if the frequency setting is 300 kHz.

7.4.4 Forced Continuous Conduction Mode

When the MODE pin is tied to PGOOD through a resistor, the controller keeps continuous conduction mode

(CCM) in light load condition. In this mode, switching frequency is kept almost constant over the entire load

range which is suitable for applications need tight control of the switching frequency at a cost of lower efficiency.

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