AT1369 Datasheet | Aimtron Technology

Description The AT1369 provides plete 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 Ni Cd, Ni MH, or alkaline battery. It can also be used to USB-Based power system. Features - High efficiency (min. 90% On IO=300m A ~600m A) - 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 1.5m A - 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.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C. Tel: 886-3-563-0878 : http://.aimtron..tw Fax: 886-3-563-0879 Email: service@aimtron..tw 1 Preliminary Product Information 2-Channel Synchronous Buck PWM Controller with Power Good Reset Pin Configuration Ordering Information Part number AT1369AR AT1369AR_GRE AT1369BR AT1369BR_GRE A: fosc =300KHz Package SSOP20 SSOP20,Green SSOP20 SSOP20,Green B: fosc =600KHz Marking AT1369AR AT1369AR, Date Code with one bottom line AT1369BR AT1369BR, Date Code with one bottom line Pin Description Symbol Pin No. Descript Symbol Pin No.(A/B) Descript FB1...