AIC1592

Features:

l?High Efficiency: Up to 97%
l?Single-Powered N-channel MOSFETs Synchro-nous Driver
l?Input Voltage Operation Range, 4.5V to 6.5V
l?Accurate Internal temperature compensated 0.8V Bandgap Reference Voltage with 2% precision.
Fast Transient Response
- Duty cycle 0% to 95 %
PWM Operation at 300KHz
Built-in Soft-Start function.
Over Voltage Protection with Latch Up.
Under Voltage Protection at Vout with Latch Up.
Over Current Protection.
Package: MSOP10




Application

Information Appliances
LCD TV
Graphic Card
Telecomm Equipments




Description

The AIC1592 is a voltage mode synchronous buck PWM controller that drives external N-channel power MOSFET using a 300kHz fixed frequency architecure. This device is capable of producing an output voltage as low as 0.8V. It uses external di-vider to adjust output voltage with the exact right line and load regulation.
The AIC1592 provides adjustable overcurrent pro-tection threshold from external component, fixed threshold both undervoltage and overvoltage pro-tection. The application circuit just uses one single power supply.
A multifunction pin (COMP) allows external com-pensation for optimum load step response and shutdown. Soft start can also be implemented with this pin to properly sequence supplies.
The AIC1592 is available in space-saving 10 pins MSOP package.