LP5990_14 Datasheet, PDF (1/18 Pages) Texas Instruments – Micropower 200mA CMOS Low Dropout Voltage Regulator

LP5990
www.ti.com
SNVS438B – APRIL 2007 – REVISED DECEMBER 2007
LP5990 Micropower 200mA CMOS Low Dropout Voltage Regulator
Check for Samples: LP5990
FEATURES
1
•2 Operation from 2.2V to 5.5V input
• ±1% accuracy over temp range
• Output voltage from 0.8V to 3.6V in 50mV
increments
• 30 μA Quiescent current (enabled)
• 10nA Quiescent current (disabled)
• 160mV dropout at 200mA load
• 60 μV_RMSOutput voltage noise
• 60 μs start-up time
• 500μs shut-down time
• PSRR 55 dB at 10 kHz
• Stable with 0402 1.0µF ceramic capacitors
• Logic controlled enable
• Thermal–overload and short–circuit protection
APPLICATIONS
• Cellular phones
• Hand–held information appliances
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
overall solution size of < 2.5mm ².
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
(lead free)
866 µm x 917 µm
1
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
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2
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