●The LP396x series of fast ultra-low-dropout linear regulators operate from a 2.5-V to 7-V input supply. A wide range of preset output voltage options are available. These ultra-low dropout linear regulators respond very fast to step changes in load which makes them suitable for low-voltage microprocessor applications. The LP3961 and LP3964 are developed on a CMOS process which allows low quiescent current operation independent of output load current, as well as operation under extremely low dropout conditions.
●Dropout Voltage:
● Ultra-low dropout voltage; typically 24 mV at 80-mA load current and 240 mV at 800-mA load current.
●Ground Pin Current:
● Typically 4 mA at 800-mA load current.
●ERROR Flag:
● ERROR flag goes low when the output voltage drops 10% below nominal value (for LP3961).
●SENSE:
● SENSE pin improves regulation at remote loads (for LP3964).
●Precision Output Voltage:
● Multiple output voltage options are available ranging from 1.2 V to 5 V and adjustable (LP3964), with a specified accuracy of ±1.5% at room temperature, and ±3% over all conditions (varying line, load, and temperature).
● Input Supply Voltage: 2.5 V to 7 V
● Ultra-Low Dropout Voltage
● Low Ground Pin Current
● Load Regulation of 0.02%
● 15-µA Quiescent Current in Shutdown Mode
● Specified Output Current of 0.8-A DC
● Output Voltage Accuracy ±1.5%
● ERROR Flag Indicates Output Status (LP3961)
● Sense Option Improves Better Load Regulation
●(LP3964)
● Extremely Low Output Capacitor Requirements
● Overtemperature and Overcurrent Protection
● −40°C to 125°C Junction Temperature Range
