LP5990

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SNVS438B – APRIL 2007 – REVISED DECEMBER 2007

LP5990 Micropower 200mA CMOS Low Dropout Voltage Regulator

Check for Samples: LP5990

1

FEATURES

•

PSRR 55 dB at 10 kHz

•

Stable with 0402 1.0µF ceramic capacitors

2

•

Operation from 2.2V to 5.5V input

•

Logic controlled enable

•

±1% accuracy over temp range

•

Thermal–overload and short–circuit protection

•

Output voltage from 0.8V to 3.6V in 50mV

increments

APPLICATIONS

•

30

μA Quiescent current (enabled)

•

Cellular phones

•

10nA Quiescent current (disabled)

•

Hand–held information appliances

•

160mV dropout at 200mA load

•

60

•

60

μs start-up time

•

500

μs shut-down time

DESCRIPTION

The LP5990 regulator is designed to meet the requirements of portable, battery-powered systems providing an

accurate output voltage, low noise and low quiescent current.

The LP5990 will provide a 1.8V output from a low input voltage of 2.2V and can provide 200mA to an external

load.

When switched into shutdown mode via a logic signal at the enable pin, the power consumption is reduced to

virtually

zero.

Fast shut-down is achieved by the push pull architecture.

The LP5990 is designed to be stable with space saving 0402 ceramic capacitors as small as 1µF, this gives an

Performance is specified for a -40°C to 125°C junction temperature range.

The

device

is

available

in

micro

SMD

Package

(0.4mm

pitch)

and

is

available

with

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 request.

For all other output voltage options please contact your local NSC sales office.

Package

4-Bump micro SMD,0.4mm pitch

866 µm x 917 µm

(lead free)

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.