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EMP5523 fiches techniques PDF

Elite Semiconductor - 300mA CMOS Linear Regulator

Numéro de référence EMP5523
Description 300mA CMOS Linear Regulator
Fabricant Elite Semiconductor 
Logo Elite Semiconductor 





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EMP5523 fiche technique
ESMT/EMP
EMP5523
Dual, High-PSRR, Low-Noise, Low-Dropout, 300mA
CMOS Linear Regulator
General Description
The EMP5523 series is a family of dual-channel CMOS
linear regulators featuring ultra-high power supply
rejection ratio (PSRR), low output voltage noise, low
dropout voltage, low quiescent current and fast
transient response. It guarantees delivery of 300mA
output current per regulator, and supports preset
output voltages ranging from 1.2V to 3.3V with 0.1V
increment (except for 1.85V and 2.85V).
The EMP5523 is well suited for portable battery-powered
application which requires high efficiency, low noise
and small board space. With 170mV low dropout
voltage at 300mA output current, EMP5523 sustains high
PSRR at very low input voltage which is common in
battery-powered application. The EMP5523 also
features 120µVRMS low output voltage noise without
the presence of a noise bypass capacitor, which fits the
application where noise and board space are both
concerned. Other features include thermal protection
and over-current protection. The EMP5523 is available in
SOP-8 package.
Features
„ 300mA guaranteed output current
„ 72dB typical PSRR at 1kHz (60dB typical at 10KHz)
„ 120µVRMS output voltage noise (10Hz to 100kHz)
„ 170mV typical dropout at 300mA
„ 150µA typical quiescent current
„ Fast line and load transient response
„ 2.5V to 5.5V input range
„ Stable with small ceramic output capacitors
„ Over temperature and over current protection
„ ±2% output voltage tolerance
„ SOP-8 package available
„ RoHS compliant and Pb-free
Applications
„ Wireless handsets
„ PCMCIA cards
„ DSP core power
„ Hand-held instruments
„ Battery-powered systems
„ Portable information appliances
„ Typical Application Diagram
„ Typical Performance Characteristics
PSRR vs. Frequency
VIN=4.3V, VOUT=3.3V
Frequency (Hz)
Elite Semiconductor Memory Technology Inc./Elite MicroPower Inc.
Publication Date : Jun. 2009
Revision : 2.0
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PagesPages 11
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