AT1730
Preliminary Product Information
2-Channel PWM Controller for LCD Bias

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
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Features
• Low input voltage: 2.4V to 6V
• 2-Channels PWM Control:
Nch-MOSFET driving(CH1)
Nch/Pch-MOSFET driving(CH2)
• Adjustable Soft start time and maximum duty
cycle
• Built-in timer latch for short circuit protection:
• Built-in under-voltage lockout
• High operating frequency: 100kHz to 1.0MHz
• Low operating current: 2mA (typ.)
Applications
• LCD Displays Bias
• Power Supply for general equipment
General Description
The AT1730 is a PWM DC/DC converter control
IC with 2 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 1.0MHz).
Block Diagram
Aimtron reserves the right without notice to change this circuitry and specifications.