AT1368 Datasheet | Aimtron Technology

Description The AT1368 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 AT1368 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 AT1368 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 - Supports for down and up/down Zeta conversion - 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 1m A - Monitor the input voltage and 3V3 output - Input voltage: 2.5V ~7.0V Applications - Slim-Type CD-ROM/DVD-ROM/CD-RW - Power Supply for portable devices - Main or Sub Power source foe notebook puters and peripherals. Block Diagram 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 1-Channel Synchronous Buck PWM Controller with Power Good Reset Pin Configuration Ordering Information Part number AT1368A AT1368B AT1368B Package SSOP16 SSOP16 TSSOP16 Marking AT1368AR AT1368BR AT1368BP A: fosc =300KHz B: fosc =600KHz Pin Description Symbol Pin No. Descript Symbol Pin No.(A/B) Descript FB P PVCC PDRV NDRV PGND GND VCC 1 2 3 4 5 6 7 8 Inverting input to error amplifier Error amplifier output Power...