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OUT

OC

IN

EN

GND

Current

Limit

Driver

UVLO

Charge

Pump

CS

Thermal

Sense

Power Switch

†

TPS2020

,, TPS2021

TPS2022, TPS2023, TPS2024

SLVS175C – DECEMBER 1998 – REVISED SEPTEMBER 2007

Table 1. AVAILABLE OPTIONS

PACKAGED DEVICES

RECOMMENDED MAXIMUM

TYPICAL SHORT-CIRCUIT

ENABLE

CONTINUOUS LOAD

CURRENT LIMIT AT 25

°C

SMALL OUTLINE

PLASTIC DIP

CURRENT (A)

(A)

(P)

0.2

0.3

TPS2020D

TPS2020P

0.6

0.9

TPS2021D

TPS2021P

–40

°C to 85°C

Active low

1

1.5

TPS2022D

TPS2022P

1.5

2.2

TPS2023D

TPS2023P

2

3

TPS2024D

TPS2024P

(1)

The D package is available taped and reeled. Add an R suffix to device type (e.g., TPS2020DR)

TPS2020 FUNCTIONAL BLOCK DIAGRAM

TERMINAL FUNCTIONS

TERMINAL

I/O

DESCRIPTION

NO.

NAME

D OR P

EN

4

I

Enable input. Logic-low turns on power switch.

GND

1

I

Ground

IN

2, 3

I

Input voltage

OC

5

O

Overcurrent. Logic output, active-low

OUT

6, 7, 8

O

Power-switch output

2

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Copyright © 1998–2007, Texas Instruments Incorporated

Product Folder Link(s): TPS2020 TPS2021 TPS2022 TPS2023 TPS2024