LP5990
www.ti.com
SNVS438B –APRIL 2007–REVISED DECEMBER 2007
LP5990 Micropower 200mA CMOS Low Dropout Voltage Regulator
Check for Samples: LP5990
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FEATURES
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.
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Operation from 2.2V to 5.5V Input
±1% Accuracy Over Temp Range
Output Voltage from 0.8V to 3.6V in 50mV
Increments
The LP5990 will provide a 1.8V output from a low
input voltage of 2.2V and can provide 200mA to an
external load.
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30 μA Quiescent Current (Enabled)
10nA Quiescent Current (Disabled)
160mV Dropout at 200mA Load
60 μVRMSOutput Voltage Noise
60 μs Start-Up Time
When switched into shutdown mode via a logic signal
at the enable pin, the power consumption is reduced
to virtually
zero.
500μs 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
Logic Controlled Enable
The LP5990 is designed to be stable with space
saving 0402 ceramic capacitors as small as 1µF, this
gives an overall solution size of < 2.5mm 2.
Thermal–Overload and Short–Circuit
Protection
Performance is specified for a -40°C to 125°C
junction temperature range.
APPLICATIONS
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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
request. For all other output voltage options please
contact your local TI sales office.
PACKAGE
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4-Bump DSBGA, 0.4 mm Pitch 866 µm x 917
µm (Lead Free)
TYPICAL APPLICATION CIRCUIT
V
IN
V
IN
V
OUT
V
OUT
1.0 µF
IN
C
1.0 µF
LP5990
C
OUT
V
EN
V
EN
GND
GND
Capacitor Case
Size = 0402
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
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PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2007, Texas Instruments Incorporated