AiT Semiconductor Inc.
www.ait-ic.com
A7120
DC-DC CONVERTER BUCK (STEP-DOWN) 2A 1.4MHz 5.5V SYNCHRONOUS BUCK CONVERTER
...
AiT Semiconductor Inc.
www.ait-ic.com
A7120
DC-DC CONVERTER BUCK (STEP-DOWN) 2A 1.4MHz 5.5V SYNCHRONOUS BUCK CONVERTER
DESCRIPTION
The A7120 is a high efficiency synchronous buck regulator. The device operates from an input
voltage range of 3.6V to 5.5V and provides an output
voltage from 0.8 to 5V while delivering up to 2A of output current.
The internal synchronous switches increase efficiency and eliminate the need for an external Schottky diode. The switching frequency is set by an external resistor or can be synchronized to an external clock. While switching frequency is set to 1.4MHz, A7120 can allow the use of small external components, such as ceramic input and output caps, as well as small inductors, while still providing low output ripples.
100% duty cycle provides low dropout operation extending battery life in portable systems.
The A7120 is available in SOP8 package.
ORDERING INFORMATION
Package Type
Part Number
SOP8 Note
M
A7120M8R-XX A7120M8VR-XX
XX: ADJ=Adjustable
V: Halogen free Package
R : Tape & Reel
AiT provides all RoHS products Suffix “ V “ means Halogen free Package
FEATURES
Range of Input
Voltage: 3.6V~5.5V 1μA Shutdown Current 100% Duty Cycle High Efficiency: 92% No Schottky Diode Required 3.5A Current Limit 0.8V Reference for Low Output
Voltage Operating Temp. Range: -20°C~85°C Available in SOP8 Package
APPLICATIONS
Cellular phones Digital Cameras MP3 and MP4 players Set top boxes Wireless and DSL Modems USB s...