12F

NC

LP3984

3(A2)

5(B1)

4

2(A1)

12F

1(B2)

Tant

LP3984

www.ti.com

SNVS160F – OCTOBER 2001 – REVISED OCTOBER 2013

LP3984 Micropower 150 mA Ultra Low-Dropout CMOS Voltage Regulator in Subminiature

4-I/O DSBGA Package

Check for Samples: LP3984

1

FEATURES

DESCRIPTION

The LP3984 is designed for portable and wireless

2

•

Miniature 4-I/O DSBGA or SOT-23-5 Package

applications with demanding performance and space

•

Logic controlled enable

requirements.

•

Stable with Tantalum Capacitors

The LP3984's performance is optimized for battery

•

1 µF Tantalum Output Capacitor

powered systems to deliver extremely low dropout

•

Fast Turn-On

voltage and low quiescent current. Regulator ground

current increases only slightly in dropout, further

•

Thermal Shutdown and Short-Circuit Current

prolonging the battery life.

Limit

Power supply rejection is better than 60 dB at low

KEY SPECIFICATIONS

frequencies and starts to roll off at 10 kHz. High

power supply rejection is maintained down to low

•

2.5 to 6.0V Input Range

input voltage levels common to battery operated

•

150 mA Output

circuits.

•

The device is ideal for mobile phone and similar

•

≤ 1.2 µA Quiescent Current when Shut Down

battery powered wireless applications. It provides up

to 150 mA from a 2.5V to 6V input. The LP3984

•

Fast Turn-On Time: 20 µs (typ.)

consumes less than 1.2 µA in disable mode and has

•

75 mV typ Dropout with 150 mA Load

fast turn-on time less than 20 µs.

•

−40 to +125°C Junction Temperature Range for

The LP3984 is available in a 4-bump DSBGA and 5-

Operation

pin SOT-23 packages. Performance is specified for

•

1.5V, 1.8V, 2.9V and 3.1V

−40°C to +125°C temperature range and is available

in 1.5V, 1.8V, 2.9V and 3.1V output voltages. For

APPLICATIONS

other output voltage options from 1.5V to 3.5V,

please contact TI sales office.

•

CDMA Cellular Handsets

•

Wideband CDMA Cellular Handsets

•

GSM Cellular Handsets

•

Portable Information Appliances

Typical Application Circuit

Note: Pin Numbers in parenthesis indicate DSBGA package.

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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 © 2001–2013, 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.