General Description
The EM1104 performs ultra- low drop voltage, high
power supply rejection ratio (PSRR), fast response,
low noise linear regulator, and designed to
continuously deliver up to 600mA output current.
The EM1104 offers a range of 1.5V to 3.3V fixed
output, and high output accuracy to 2%.
No by-pass capacitor is needed for this device
and only 1uF ceramic capacitor is required for
stability in any loading conditions. It reduces the
amount of board space necessary for power
applications.
The other features include soft start, current
limit protection, Power-On-Reset function, and
over temperature protection. The EM1104 is
available in SOT-23-5 package

Features
 Ultra Fast Response in Line/Load Transient
 Wide VIN Range from 2.5V to 5.5V
 Custom Voltage Available
 Ultra Low Dropout Voltage: 400mV @600mA
 High Power Supply Rejection Ratio
 70dB at 1kHz
 55dB at 10kHz
 Ultra Low Output Noise Voltage 100uV(RMS)
 Low Shutdown Current < 1uA
 Only 1uF Ceramic Capacitor required for
stability
 Over Temperature Protection
 Current Limit Protection
 RoHS Compliant and 100% Lead (Pb)-Free

Applications
 Cellular Handsets
 Battery-Powered Equipment
 Laptop, Palmtops, Notebook Computers
 Hand-Held Instruments
 PCMCIA Cards
 Portable Information Applications