AT1743
Preliminary Product Information
2-Channel PWM Controller for LCD Display
Features
• High-accuracy reference voltage circuit (±1%).
• Built-in short-circuit protection circuit.
• Built-in Undervoltage Lockout protection.
• Internal 2.5V Reference supply.
• Variable Dead time provides control over total
Range.
General Description
The AT1743 is 2-channel PWM switching
regulator controllers that contains an on-chip 2.5V
reference, two error amplifier, an adjustable
oscillator, two dead-time comparators, under-
voltage lockout circuitry and 2 common-emitter
output. It is idea for step-up, step-down, and
inverting converter.
Applications
• LCD Display
• Portable equipment
Block Diagram
Aimtron reserves the right without notice to change this circuitry and specifications.
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878
WWW:
http://www.aimtron.com.tw
Fax: 886-3-563-0879
Email:
service@aimtron.com.tw
1
GMT [ GLOBAL MIXED-MODE TECHNOLOGY INC ]
