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AT1743
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, undervoltage 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
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.