LP3996

VIN

EN1

EN2

CBYP

SET

POR

VOUT1

VOUT2

1 PF

1 PF

1 PF

VIN

EN1

EN2

VOUT1

VOUT2

POR

470 k:

GND

10 nF

Sets delay

for POR

LP3996

www.ti.com

SNVS360D – NOVEMBER 2006 – REVISED OCTOBER 2013

LP3996 Dual Linear Regulator with 300 mA and 150 mA Outputs and Power-On-Reset

Check for Samples: LP3996

1

FEATURES

APPLICATIONS

2

•

2 LDO Outputs with Independent Enable

•

Cellular Handsets

•

1.5% Accuracy at Room Temperature, 3% Over

•

PDAs

Temperature

•

Wireless Network Adaptors

•

Power-On-Reset Function with Adjustable

Delay

DESCRIPTION

The LP3996 is a dual low dropout regulator with

•

Thermal Shutdown Protection

power-on-reset circuit. The first regulator can source

•

Stable with Ceramic Capacitors

150 mA, while the second is capable of sourcing 300

mA and has a power-on-reset function included.

KEY SPECIFICATIONS

The LP3996 provides 1.5% accuracy requiring an

•

Input Voltage Range 2.0V to 6.0V

ultra low quiescent current of 35 µA. Separate enable

•

Low Dropout Voltage 210 mV at 300 mA

pins allow each output of the LP3996 to be shut

down, drawing virtually zero current.

•

Ultra-Low IQ (Enabled) 35 µA

•

Virtually Zero IQ (Disabled) <10 nA

The LP3996 is designed to be stable with small

footprint ceramic capacitors down to 1 µF. An

•

Package Available in Lead-Free Option

external capacitor may be used to set the POR delay

10-pin 3 mm x 3 mm

time as required.

The LP3996 is available in fixed output voltages and

comes in a 10-pin, 3 mm x 3 mm package.

Typical Application Circuit

1

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 2006–2013, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.