General Description
The EM1109AV-AD performs ultra- low drop
voltage, high power supply rejection ratio (PSRR),
fast response, low noise linear regulator, and
designed to continuously deliver up to 1A output
current. The EM1109AV-AD has wide adjustable
output voltage range and high output accuracy to
1.0%.
No by-pass capacitor is needed for this device and
only 4.7uF 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 EM1109AV-AD is
available in DFN3.0X3.0-08 package.

Features

Ultra Fast Response in Line/Load Transient

Wide VIN Range from 2.5V to 5.5V

Adjustable Output Voltage from 1V to 3.3V

Ultra Low Dropout Voltage: 450mV @1A

Low Shutdown Current < 1uA

Only 4.7uF 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