LP3992

EN

OUT

GND

CAP

IN

VIN

VEN

VOUT

1 PF

1 PF

COUT

CIN

High= ON

Low= OFF

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LP3992

SNVS192C – OCTOBER 2002 – REVISED NOVEMBER 2015

LP3992 Micropower 1.5-V CMOS Voltage Regulator With Shutdown Control

1 Features

3 Description

The LP3992 regulator is designed to meet the

1

•

Input Voltage: 1.9 V to 5.2 V

requirements of portable, battery-powered systems

•

Operation From a Low Input Voltage: 1.9 V

providing an accurate output voltage, low noise, and

•

Accurate Output Voltage: 1.5 V ± 0.09 V

low quiescent current. Battery life is prolonged by the

ability of the LP3992 to provide a 1.5-V output from

•

Quiescent Current in Shutdown: < 1.5 µA

the low input voltage of 1.9 V. Additionally, when

•

Stable With an Output Capacitor: 1 µF

switched to a shutdown mode via a logic signal at the

•

Ensured Output Current: 30 mA

enable (EN) pin, the power consumption is reduced

to virtually zero. The LP3992 also features short-

•

Low Output Voltage Noise: 300 µVRMS

circuit and thermal-shutdown protection.

•

Low Quiescent Current: 29-µA Typical

The LP3992 is designed to be stable with space-

•

Stable With a Ceramic Capacitor

saving

ceramic

capacitors

as

small

as

1

µF.

•

Logic Controlled Enable

Performance is specified for a –40°C to +125°C

•

Fast Turnon and Turnoff

temperature range.

•

Thermal-Overload and Short-Circuit Protection

For output voltages other than 1.5 V, and for

•

–40°C to +125°C Junction Temperature Range

additional package options, contact TI.

2 Applications

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

•

GSM Portable Phones

LP3992

SOT-23 (5)

2.90 mm × 1.60 mm

•

CDMA Cellular Handsets

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

•

Wideband CDMA Cellular Handsets

the end of the data sheet.

•

Bluetooth Devices

•

Portable Information Appliances

Typical Application

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.