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A7120

AiT Semiconductor
Part Number A7120
Manufacturer AiT Semiconductor
Description 2A 1.4MHz 5.5V SYNCHRONOUS BUCK CONVERTER
Published May 25, 2015
Detailed Description AiT Semiconductor Inc. www.ait-ic.com A7120 DC-DC CONVERTER BUCK (STEP-DOWN) 2A 1.4MHz 5.5V SYNCHRONOUS BUCK CONVERTER ...
Datasheet PDF File A7120 PDF File

A7120
A7120

Overview
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 supplied Devices in Notebooks  Portable Devices TYPICAL APPLICATION REV2.
1 -NOV 2008 RELEASED, AUG 2014 UPDATED - -1- AiT Semiconductor Inc.
www.
ait-ic.
com A7120 DC-DC CONVERTER BUCK (STEP-DOWN) 2A 1.
4MHz 5.
5V SYNCHRONOUS BUCK CONVERTER PIN DESCRIPTION Pin # 1 2 3 4 5 6 7 8 Symbol N.
C PVDD LX GND FB COMP VDD RT Top View Function Not Connected Power Supply for internal power switch Switching Node: PWM output connection to inductor Ground Pin Pin for Feedback Voltage Compensation Pin Powe...


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