TPS62200, TPS62201

TPS62202, TPS62203

TPS62204, TPS62205

SLVS417B – MARCH 2002 – REVISED OCTOBER 2002

3

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functional block diagram

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+

_

+

_

+

_

+

_

+

REF

REF

Load Comparator

Skip Comparator

Current Limit Comparator

P-Channel

Power MOSFET

Driver

Shoot-Through

Logic

Control

Logic

Soft Start

1 MHz

Oscillator

Comparator

S

R

N-Channel

Power MOSFET

Comparator High

Comparator Low

Comparator Low 2

V(COMP)

Sawtooth

Generator

V

I

Undervoltage

Lockout

Bias Supply

_

+

Comparator High

Comparator Low

Comparator Low 2

Compensation

VREF = 0.5 V

R2

See Note

R1

VI

EN

SW

FB

GND

Gm

NOTE: For the adjustable version (TPS62200) the internal feedback divider is disabled and the FB pin is directly connected to the internal GM

amplifier