EMP8736

ESMT/EMP CMOS Linear Regulator General Description The EMP8736 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 adjustable output voltages by using two external resistors. EMP8736 Fast Ultra High-PSRR, Low-Noise, 300mA Features g g g g g g g 300mA guaranteed output current 65dB typical PSRR at 1kHz 110µV RMS output voltage noise (10Hz to 100kHz) 290mV typical dropout at 300mA 57µA typical quiescent current Less than 1μA typical shutdown mode Fast line and load transient response 2.2V to 5.5V input range Auto-discharge during chip disable 80µs typical turn-on time Stable with small ceramic output capacitors Over temperature and over current protection ±2% output voltage tolerance Based on its low quiescent current consumption and its less than 1μA shutdown mode of logical operation, the EMP8736 is ideal for battery-powered applications. The high power supply rejection ratio of the EMP8736 holds well for low input voltages typically encountered in battery-operated systems. The regulator is stable with small ceramic capacitive loads (1µF typical). The EMP8736 is available in miniature SOT-23-5 packages. g g g g g g Applications g g g g g g Wireless handsets PCMCIA cards DSP core power Hand-held instruments Battery-powered systems Portable information appliances Typical Application Fig 1. The typical application cir...