Aimtron Technology AT1369
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.GENERAL DESCRIPTION
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.