LP3990

1.0 PF

1.0 PF

GND

6

5

2

1

(WQFN pin connections shown)

LP3990

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SNVS251I – MAY 2004 – REVISED MAY 2013

LP3990 150mA Linear Voltage Regulator for Digital Applications

Check for Samples: LP3990

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FEATURES

APPLICATIONS

2

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1% Voltage Accuracy at Room Temperature

•

Cellular Handsets

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Stable with Ceramic Capacitor

•

Hand-Held Information Appliances

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Logic Controlled Enable

DESCRIPTION

•

No Noise Bypass Capacitor Required

The LP3990 regulator is designed to meet the

•

Thermal-Overload and Short-Circuit Protection

requirements of portable, battery-powered systems

providing an accurate output voltage, low noise, and

KEY SPECIFICATIONS

low quiescent current. The LP3990 will provide a

0.8V output from the low input voltage of 2V at up to

•

Input Voltage Range, 2.0 to 6.0V

150mA load current. When switched into shutdown

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Output Voltage Range, 0.8 to 3.3V

mode via a logic signal at the enable pin, the power

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Output Current, 150mA

consumption is reduced to virtually zero.

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Output Stable - Capacitors, 1.0µF

The LP3990 is designed to be stable with space

•

saving ceramic capacitors as small as 1.0µF.

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Performance is specified for a -40°C to 125°C

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junction temperature range.

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PSRR, 55dB at 1kHz

For output voltages other than 0.8V, 1.2, 1.35V, 1.5V,

1.8V, 2.5V, 2.8V, or 3.3V please contact your local

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Fast Start Up, 105µs

NSC sales office.

PACKAGE

All available in Lead Free option.

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4-Pin DSBGA, 1 mm x 1.3 mm

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6-pin WQFN (SOT-23 Footprint)

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SOT-23

For other package options contact your Texas Instruments sales

office.

Typical Application Circuit

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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 © 2004–2013, 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.