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发布者:来自网络 发布时间:2014-6-11 阅读:1966次    关键字: LDO
EMP8130-Ultra High-PSRR, Low-Noise, 300mA CMOS LDO


EMP8130-Ultra High-PSRR, Low-Noise, 300mA CMOS Linear Regulator DataSheet

General Description
    The EMP8130 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 preset output voltages ranging from 0.8V to 4.0V with 0.1V increment.
    Based on its low quiescent current consumption and its less than 1uA shutdown mode of logical operation,the EMP8130 is ideal for battery-powered applications. The high power supply rejection ratio of the EMP8130 holds well for low input voltages typically encountered in battery-operated systems. The regulator is stable with small ceramic capacitive loads (1μF typical).
    The EMP8130 is available in miniature SOT-23-5 package.

Applications
 Wireless handsets
 PCMCIA cards
 DSP core power
 Hand-held instruments
 Battery-powered systems
 Portable information appliances

Features
 300mA guaranteed output current
 75dB typical PSRR at 1kHz
 260mV (VOUT=3.3V) typical dropout at 300mA
 52μA typical quiescent current
 Less than 1μA typical shutdown mode
 Fast line and load transient response
 1.7V to 5.5V input range
 Auto-discharge during chip disable
 0.8V to 4.0V output voltage range
 Stable with small ceramic output capacitors
 Fold-back over current protection

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