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