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FUNCTIONAL BLOCK DIAGRAM

+

_

+

Power-Save

Mode

Switching

Logic

REF

REF

_

EN

P

TPS6232x

Only

N-MOSCurrentLimit

Compator

P-MOSCurrentLimit

Compator

GateDriver

Anti

Shoot-Through

P

P

SW

VOUT

PGND

_

+

ComparatorLow

Summing

Comparator

+

+

-

+

+

+

-

-

+

RAMP HEIGHT

+

-

Mid-,High-Frequency

Zero-PolePair

_

+

A

A

R2

R1

Seenote A

C

2R

VOUT

R

2C

A

=3

(DC)

-

Soft-Start

CompLow

3-MHz

Oscillator+PLL

Sawtooth

Generator

Thermal

Shutdown

BandGap

Undervoltage

Lockout

BiasSupply

AGND

ADJ

FB

AVIN

MODE/SYNC

EN

VIN

NOTE A:

:

PARAMETER MEASUREMENT INFORMATION

AVIN

VIN

SW

U1

L1

ADJ

C1

VO

1.6V/500mA

PGND

C2

VI

AGND

VOUT

R1

R2

EN

MODE/SYNC

A

A

FB

A

1

2

3

8

7

10

6

4

5

9

10 F

m

ListofComponents:

U1=TPS6230x

L1=FDKMIPW3226Series

C1,C2=X5R/X7R

2.7V..6V

TPS62300, TPS62301, TPS62302

TPS62303, TPS62304, TPS62305,

TPS62311, TPS62313, TPS62315, TPS62320, TPS62321

SLVS528E – JULY 2004 – REVISED NOVEMBER 2007

Copyright © 2004–2007, Texas Instruments Incorporated

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Product Folder Link(s): TPS62300, TPS62301, TPS62302 TPS62303, TPS62304, TPS62305, TPS62311, TPS62313,

TPS62315, TPS62320, TPS62321