AT1729 - ETC

AT1729 3-Channel PWM Controller for LCD Bias

The AT1729 is a PWM DC/DC converter control IC with 3 channel outputs that can directly drive power MOSFET. This IC ia suitable for very small DC/DC converters because of their small and thin package(1.1 mm max.), and high operation frequency (up to 1.0 MHz). Features • Low input voltage: 2.5V to 7V • 3-Channels PWM Control: 2 Boost Controller(CH1,CH2) 1 In.

Features

• Low input voltage: 2.5V to 7V
• 3-Channels PWM Control: 2 Boost Controller(CH1,CH2) 1 Inverting Controller (CH3)
• Adjustable Soft start time and maximum duty cycle
• Built-in timer latch for short circuit protection: Delay time=216/(Switching frequency)
• Built-in under-voltage lockout, thermal shutdown.
• High operating frequency: 100kHz to 1MHz Applications
• LCD Displays Bias
• Power Supply for general 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.com.tw Fax: 886-3-563-0879 Em.