A7122A
DC-DC CONVERTER BUCK (STEP-DOWN)
5.5V 2A 1.3MHz SYNCHRONOUS
AiT Semiconductor Inc.
www.ait-ic.com
DESCRIPTION
FEATURES
The A7122A is
a
high-efficiency, DC-to-DC
High Efficiency: Up to 97%
Capable of Delivering 2A
step-down switching regulators, capable of delivering
up to 2A of output current. The device operates from
an input voltage range of 2.5V to 5.5V and provides
an output voltage from 0.6V to VIN, making the
A7122A ideal for low voltage power conversions.
Running at a fixed frequency of 1.3MHz 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 A7122A an
ideal green replacement for large power consuming
linear regulators. Internal soft-start control circuitry
1.3MHz Switching Frequency
No External Schottky Diode Needed
Light-load Mode
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-26 and SOT-25 Packages
APPLICATION
Digital Cameras
reduces
inrush
current.
Short-circuit
and
MP3 and MP4 players
Set top boxes
thermal-overload protection improves design
reliability.
Wireless and DSL Modems
USB supplied Devices in Notebooks
Portable Devices
The A7122A is available in SOT-26 and SOT-25
packages.
TYPICAL APPLICATION
ORDERING INFORMATION
Package Type
SOT-26
Part Number
A7122AE6R
E6
E5
A7122AE6VR
A7122AE5R
A7122AE5VR
SOT-25
Note
V: Halogen free Package
R: Tape & Reel
SPQ: 3,000pcs/Reel
AiT provides all RoHS products
Suffix “ V “ means Halogen free Package
REV1.0
- MAY 2016 RELEASED -
- 1 -
AITSEMI [ AiT Semiconductor ]
