AT1369

www.DataSheet4U.com AT1369 Preliminary Product Information 2-Channel Synchronous Buck PWM Controller with Power Good Reset General Description The AT1369 provides complete control and protection for a DC/DC converter optimized for high-performance microprocessor applications. It is designed to drive one P-Channel and one NChannel MOSFETs in a synchronous-rectified buck topology. The AT1369 integrates all of the control, output adjustment, monitoring and protection functions into a single package. The output voltage of the converter can be precisely regulated with a maximum tolerance of ±2% over temperature and line voltage variations. The AT1369 is a family of low-noise synchronous stepdown DC/DC converters that is ideally suited for systems powered from a 1-cell Li-ion battery or from a 3-cell to 4-cell NiCd, NiMH, or alkaline battery. It can also be used to USB-Based power system. Features High efficiency (min. 90% On IO=300mA ~600mA) Using external P and N channel MOSFET Maximum Duty 100% Oscillation frequency 300KHz or 600KHz Soft Start by an external capacity Output voltage accuracy ±2% Built-in ON/OFF Function Built-in Short-circuit Protection Stand-by current max. 10µA Quiescent Current 1.5mA Built-in Power Good reset circuit Input voltage: 2.5V ~7.0V Applications Slim-Type CD-ROM/DVD-ROM/CD-RW Power Supply for portable devices Block Diagram Aimtron reserves the right without notice to change this circuitry and specifications. 2F, No.1...