1.0 µF

VOUT

GND

VIN

VEN

CIN

COUT

VIN

VOUT

VEN

GND

1.0 µF

LP5990

Capacitor Case

Size = 0402

LP5990

www.ti.com

SNVS438B – APRIL 2007 – REVISED DECEMBER 2007

LP5990 Micropower 200mA CMOS Low Dropout Voltage Regulator

Check for Samples: LP5990

1

FEATURES

DESCRIPTION

The LP5990 regulator is designed to meet the

2

•

Operation from 2.2V to 5.5V Input

requirements of portable, battery-powered systems

•

±1% Accuracy Over Temp Range

providing an accurate output voltage, low noise and

•

Output Voltage from 0.8V to 3.6V in 50mV

low quiescent current.

Increments

The LP5990 will provide a 1.8V output from a low

•

30

μA Quiescent Current (Enabled)

input voltage of 2.2V and can provide 200mA to an

external load.

•

10nA Quiescent Current (Disabled)

•

160mV Dropout at 200mA Load

When switched into shutdown mode via a logic signal

at the enable pin, the power consumption is reduced

•

60

μVRMSOutput Voltage Noise

to virtually

•

60

μs Start-Up Time

zero.

•

500

μs Shut-Down Time

•

PSRR 55 dB at 10 kHz

Fast

shut-down

is

achieved

by

the

push

pull

architecture.

•

Stable with 0402 1.0µF Ceramic Capacitors

The LP5990 is designed to be stable with space

•

Logic Controlled Enable

saving 0402 ceramic capacitors as small as 1µF, this

•

Thermal–Overload and Short–Circuit

gives an overall solution size of < 2.5mm 2.

Protection

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

junction temperature range.

APPLICATIONS

•

Cellular Phones

The device is available in DSBGA Package (0.4mm

pitch)

and

is

available

with

•

Hand–Held Information Appliances

1.2V,1.3V,1.8V,2.8V,3.0V,3.3V

and

3.6V

outputs.

Lower voltage options down to 0.8V are available on

PACKAGE

request. For all other output voltage options please

•

4-Bump DSBGA, 0.4 mm Pitch 866 µm x 917

contact your local TI sales office.

µm (Lead Free)

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 © 2007, 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.