AT1380
Preliminary Product Information
Switching Regulator Power Controller
Features
• 1.8 to13 V supply voltage operating range
• Low current consumption: 5 mA in operation,
1
µA
or less in stand-by.
• 20 kHz to 1 MHz operation frequency range
• Provides a fixed output current with minimal
supply voltage fluctuations by using an external
resistor to set the output current
• Totem-pole output.
• Built-in soft start circuit.
• Built-in timer-latch type short circuit detection
and protection (SCP) circuit.
General Description
The AT1380 is a single-channel PWM control IC
for DC/DC conversion with soft start function and
short circuit detection. Adjustable soft start is
programmed with an external capacitor on the SCP
pin. The AT1380 is ideal for up, down and fly-back
conversion.
Applications
• LCD Displays
• PDAs
• Digital Still Cameras
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 ]
