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发布者:来自网络 发布时间:2014-6-11 阅读:3760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 .
    The EMP8130 is available in miniature SOT-23-5,
uDFN-4, SC-70-5, SC-82-4, TSOT-23-5, SOT-23-3 and
TDFN-6
package.


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
  ±1% output voltage tolerance

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

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