1FEATURES
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 μVRMSOutput 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.