LP5990 Datasheet, PDF (1/16 Pages) Intersil Corporation – Micropower 200mA CMOS Low Dropout Voltage Regulator General Description

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
PACKAGE
• 4-Bump DSBGA, 0.4 mm Pitch 866 µm x 917
µm (Lead Free)
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 DSBGA 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 TI sales office.
TYPICAL APPLICATION CIRCUIT
V_IN
V_IN
1.0 µF
C_IN
V_OUT
LP5990
1.0 µF
C_OUT
V_OUT
V_EN
Capacitor Case
Size = 0402
V_EN
GND
GND
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.
All trademarks are the property of their respective owners.
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