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AiT Semiconductor - 7V SYNCHRONOUS PWM BUCK (STEP-DOWN) DC-DC CONVERTER

Numéro de référence A7112
Description 7V SYNCHRONOUS PWM BUCK (STEP-DOWN) DC-DC CONVERTER
Fabricant AiT Semiconductor 
Logo AiT Semiconductor 





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A7112 fiche technique
AiT Semiconductor Inc.
www.ait-ic.com
A7112
1.5 MHZ, 1.2A, 7V SYNCHRONOUS PWM
BUCK (STEP-DOWN) DC-DC CONVERTER
DESCRIPTION
The A7112 is a high-efficiency, DC-to-DC
step-down switching regulators, capable of
delivering up to 1.2A of output current. The device
operates from an input voltage range of 2.6V to
7.0V and provides an output voltage from 0.6V to
VIN, making the A7112 ideal for low voltage
power conversions. Running at a fixed frequency
of 1.5MHz allows the use of small external
components, such as ceramic input and output
caps, as well as small inductors, while still
providing low output ripples. This low noise output
along with its excellent efficiency achieved by the
internal synchronous rectifier, making A7112 an
ideal green replacement for large power
consuming linear regulators. Internal soft-start
control circuitry reduces inrush current.
Short-circuit and thermal-overload protection
improves design reliability.
The A7112 is available in SOT-25 package.
ORDER INFORMATION
Package Type
Part Number
SOT-25
E5
A7112E5R-XX
A7112E5VR-XX
XX: Output Voltage
Note
ADJ=Adjustable
R: Tape & Reel
V: Halogen free Package
AiT provides all RoHS products
Suffix “V” means Halogen free Package
FEATURES
High Efficiency: Up to 96%
Capable of Delivering 1.2A
1.5MHz Switching Frequency
No External Schottky Diode Needed
Low dropout 100% Duty operation
Internal Compensation and Soft-Start
Current Mode control
0.6V Reference for Low Output voltages
Logic Control Shutdown (IQ<1uA)
Thermal shutdown and UVLO
Available in SOT-25 package
APPLICATION
Cellular phones
Digital Cameras
MP3 and MP4 players
Set top boxes
Wireless and DSL Modems
USB supplied Devices in Notebooks
Portable Devices
TYPICAL APPLICATION
REV1.2
- AUG 2011 RELEASED, SEP 2012 UPDATED -
-1-

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