LP5990
www.ti.com SNVS438B – APRIL 2007 – REVISED DECEMBER 2007 LP5990 Micropower 200mA CMOS Low Dropout Voltage Regulator
Check for Samples: LP5990 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. 1 2 Operation from 2.2V to 5.5V Input
В±1% Accuracy Over Temp Range
Output Voltage from 0.8V to 3.6V in 50mV
Increments
30 ОјA Quiescent Current (Enabled)
10nA Quiescent Current (Disabled)
160mV Dropout at 200mA Load
60 ОјVRMSOutput Voltage Noise
60 Ојs Start-Up Time
500Ојs Shut-Down Time
PSRR 55 dB at 10 kHz
Stable with 0402 1.0ВµF Ceramic Capacitors
Logic Controlled Enable
Thermal–Overload and Short–Circuit
Protection 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 …
