LP3999

Enable Control,

Active high

Load

CBYPASS

10 nF

1.0 uF

1.0 PF

VIN

VIN

VOUT

GND

VEN

C1

A3

B2

A1

C3

LP3999

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SNVS207E – JUNE 2003 – REVISED MAY 2013

LP3999 Low Noise 150mA Voltage Regulator for RF/Analog Applications

Check for Samples: LP3999

1

FEATURES

APPLICATIONS

2

•

5 pin DSBGA Package

•

GSM Portable Phones

•

Stable with Ceramic Capacitor

•

CDMA Cellular Handsets

•

Logic Controlled Enable

•

Wideband CDMA Cellular Handsets

•

Fast Turn-on

•

Bluetooth Devices

•

Thermal-overload and short-circuit protection

•

Portable Information Appliances

•

−40 to +125°C junction temperature range for

•

Handheld MP3 Devices

operation

DESCRIPTION

KEY SPECIFICATIONS

The LP3999 regulator is designed to meet the

requirements of portable wireless battery-powered

•

2.5V to 6.0V Input Range

applications and will provide an accurate output

•

Accurate Output Voltage; ±75mV / 2%

voltage with low noise and low quiescent current.

•

60 mV Typical Dropout with 150 mA Load. Vout

Ideally suited for powering RF/Analog devices this

device will also be used to meet more general circuit

> 2.5V

requirements.

•

Virtually Zero Quiescent Current when

Disabled

For battery powered applications the low dropout and

low ground current provided by the device allows the

•

10

μVrms Output Noise Over 10Hz to 100kHz

lifetime of the battery to be maximized.The inclusion

•

Stable with a 1

μF Output Capacitor

of an Enable(disable) control can be used by the

•

Ensured 150 mA Output Current

system to further extend the battery lifetime by

reducing the power consumption to virtually zero.

•

Fast Turn-on Time; 140

μs (Typ.)

Should the application require a device with an active

disable function please refer to device LP3995.

The LP3999 also features internal protection against

short-circuit

currents

and

over-temperature

conditions.

Typical Application Circuit

1

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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 © 2003–2013, 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.