AT1743
2-Channel PWM Controller for LCD Display
Features
• High-accuracy reference
voltage circuit (±1%).
• Built-in short-circuit protection circuit.
• Built-in Under
voltage 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
2F, No.
10, Prosperity RD.
II, Sci...