Charge

Pump

Driver

UVLO

Current

Limit

Thermal

Sense

9-ms

Deglitch

IN

GND

OUT

FLT

Current

Sense

(Disabled+

UVLO)

OTSD

CS

EN or

EN

TPS20xxC

SLVSAU6A –JUNE 2011–REVISED JULY 2011

www.ti.com

FUNCTIONAL BLOCK DIAGRAM

DEVICE INFORMATION

PIN FUNCTIONS

NAME

PINS

DESCRIPTION

8-PIN PACKAGE

EN or EN

4

Enable input, logic high turns on power switch

GND

1

Ground connection

IN

2, 3

Input voltage and power-switch drain; connect a 0.1 µF or greater ceramic capacitor from IN to GND close

to the IC

FLT

5

Active-low open-drain output, asserted during over-current, or over-temperature conditions

OUT

6, 7, 8 Power-switch output, connect to load

PowerPAD

PAD

Internally connected to GND. Connect PAD to GND plane as a heatsink for the best thermal performance.

(DGN ONLY)

PAD may be left floating if desired. See POWER DISSIPATION AND JUNCTION TEMPERATURE section

for guidance.

5-PIN PACKAGE

EN or EN

4

Enable input, logic high turns on power switch

GND

2

Ground connection

IN

5

Input voltage and power-switch drain; connect a 0.1 µF or greater ceramic capacitor from IN to GND close

to the IC

FLT

3

Active-low open-drain output, asserted during over-current, or over-temperature conditions

OUT

1

Power-switch output, connect to load.

6

Copyright © 2011, Texas Instruments Incorporated