ON/OFF

2.2 µF

LP2980

ON/OFF

GND

IN

NC

OUT

1 µF

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Design

LP2980-N

SNOS733O – APRIL 2000 – REVISED JUNE 2015

LP2980-N Micropower 50-mA Ultra Low-Dropout Regulator in SOT-23 Package

1 Features

3 Description

The LP2980-N is a 50-mA, fixed-output voltage

1

•

2.1-V to 16-V Input Voltage Range

regulator

designed

specifically

to

meet

the

•

5-V, 4.7-V, 3.3-V, 3-V, and 2.5-V Output Versions

requirements of battery-powered applications.

•

Ultra-Low-Dropout Voltage

Using an optimized VIP (Vertically Integrated PNP)

•

Output Voltage Accuracy 0.5% (A Grade)

process,

the

LP2980-N

delivers

unequaled

•

Ensured 50-mA Output Current

performance in all specifications critical to battery-

powered designs:

•

Requires Only 1-

μF External Capacitance

•

< 1-

μA Quiescent Current When Shutdown

Dropout voltage: Typically 120 mV at 50-mA load,

and 7 mV at 1-mA load.

•

Low Ground Pin Current at All Load Currents

•

High Peak Current Capability (150 mA Typical)

Ground pin current: Typically 375

μA at 50-mA load,

and 80

μA at 1-mA load.

•

Wide Supply Voltage Range (16 V Maximum)

Sleep mode: Less than 1-

μA quiescent current when

•

Fast Dynamic Response to Line and Load

ON/OFF pin is pulled low.

•

Minimum part count: Requires only a 1-

μF capacitor

•

Overtemperature and Overcurrent Protection

on the regulator output.

•

−40°C to 125°C Junction Temperature Range

Precision output: 0.5% tolerance output voltages

available (A grade).

2 Applications

•

Cellular Phone

5-V, 4.7-V, 3.3-V, 3-V, and 2.5-V versions available

as standard products.

•

Palmtop/Laptop Computer

•

Personal Digital Assistant (PDA)

Device Information(1)

•

Camcorder, Personal Stereo, Camera

PART NUMBER

PACKAGE

BODY SIZE (NOM)

LP2980-N

SOT-23 (5)

2.90 mm × 1.60 mm

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

Simplified Schematic

1

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.