TPS77501DG4 DESCRIPTION
The TPS775xx and TPS776xx devices are designed to have a fast transient response and be stable with a 10uFlOW ESR capacitorThiscombination provides high performance at a reasonable cost.Because the PMos device behaves as alow-value resistor, the dropout voltage isverylow(typically169mV at an output current of 500mA for the TPS77x33) and is directly proportional to theoutput current.Additionally since the PMos passelement is a voltage-driven devicethe quiescent currentis very low and independent of output loading(typically85uA over the full range of output currentOmA to500mA). These two keyspecifications yield a significant improvement in operatinglife for battery-powered systems.This LDO familyalso features a sleep modeapplying a TTLhigh signal to EN (enable) shuts down the regulatorreducing the quiescent current to 1uA at T=+25°℃.
TPS77501DG4 FEATURES
Open Drain Power-On Reset with 200ms Delay(TPS775xx)
Open Drain Power Good(TPS776xx
·500mALow-Dropout Voltage Regulator·Available in Fixed Output and Adjustable
Versions
·Dropout Voltageto169mV(Typ)at500mA
(TPS77x33)
·Ultralow 85uA Typical Quiescent Current Fast Transient Response
.2%Tolerance Over Specified Conditions for
Fixed-Output Versions
·8-Pin SOIC and 20-Pin TsSOP PowerPADM
(PWP)Packages
· Thermal Shutdown Protection
TPS77501DG4 APPLICATIONS
·FPGA Power
·DSP Core and /o Voltages
