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ESMT
Preliminary
EMP8731
High-PSRR, Low-Noise, 300mA CMOS Linear Regulator with 3 Types of Output Select
General Description
The EMP8731 features ultra-high power supply rejection ratio, low output voltage noise, low dropout voltage, low quiescent current and fast transient response. It guarantees delivery of 300mA output current and supports 3 types of output voltages via ADJ pin. DSP core power Hand-held instruments Battery-powered systems Portable information appliances
Features
300mA guaranteed output current 60dB typical PSRR at 1kHz 130µV (VOUT=3.0V) RMS output voltage noise (10Hz to 100kHz) 264mV (VOUT=2.8V) typical dropout at 300mA 60µA typical quiescent current Less than 1µA typical shutdown mode Fast line and load transient response 2.2V to 5.