1

VIN

2

GND

3

ON/OFF

4

NC

5

VOUT

Not to scale

3

LP2981-28, LP2981-29, LP2981-30

LP2981-33, LP2981-50, LP2981A-28

LP2981A-29, LP2981A-30, LP2981A-33, LP2981A-50

www.ti.com

SLVS521G – JULY 2004 – REVISED AUGUST 2016

Product Folder Links: LP2981-28 LP2981-29 LP2981-30 LP2981-33 LP2981-50 LP2981A-28 LP2981A-29 LP2981A-

30 LP2981A-33 LP2981A-50

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5 Pin Configuration and Functions

DBV Package

5-Pin SOT-23

Top View

Pin Functions

PIN

I/O

DESCRIPTION

NO.

NAME

1

I

Supply input

2

GND

—

Ground

3

ON/OFF

I

4

NC

—

No connect

5

O

Voltage output

(1)

Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings

only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended

Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

(2)

The PNP pass transistor has a parasitic diode connected between the input and output. This diode normally is reverse-biased

for more details).

(3)

If load is returned to a negative power supply, the output must be diode clamped to GND.

6 Specifications

6.1 Absolute Maximum Ratings

over operating free-air temperature range (unless otherwise noted)

(1)

MIN

MAX

UNIT

–0.3

16

V

ON/OFF input voltage

–0.3

16

V

–0.3

9

V

Output current

Internally limited

(short-circuit protected)

Operating virtual junction temperature

150

°C

Storage temperature

–65

150

°C

(1)

JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.

(2)

JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.

6.2 ESD Ratings

VALUE

UNIT

Electrostatic

discharge

±2000

V

±1000

Machine model (MM)

±200