AT1796
Preliminary Product Information
150kHz, 3A Step-Down Switching Regulator
Features
․3.3V
and 5V output versions
․Guaranteed
3A output load current
․Requires
small number ofexternal components
․Excellent
line and load regulation
․150kHz
fixed frequency internal oscillator
․Built-in
TTL On/Off Control
․Low
power standby mode, I
Q
typically 80uA
․Built-in
current limit protection
․Built-in
thermal shutdown circuit.
․Operating
voltage: 4.5V~25V
․TO-265
package
Description
The AT1796 series of regulators are step-down
(buck) DC/DC converter, capable of driving a
3A load with excellent line and load regulation.
Requiring a minimum number of external
components, these regulators are simple to use .
The AT1796 series operates at a switching
frequency of 150kHz.Available in a standard
5-lead TO-263 surface mount package. It include
a guaranteed
±4%
tolerance on output voltage
under specified input voltage and output load
conditions, and
±15%
on the oscillator
frequency.
Applications
High-efficiency step-down regulator
TFT Scalar Board
On-card switching regulators
Block Diagram
Aimtron reserves the right without notice to change this circuitry and specifications.
7F, No.9, PARK AVENUE II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878
Fax: 886-3-563-0879
WWW:
http://www.aimtron.com.tw
2/15/2006 REV : 1.1
Email:
service@aimtron.com.tw
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AIMTRON [ AIMTRON TECHNOLOGY ]
