CAT7117

CAT7117 Dual Channel 800mA High Efficiency Step-Down DC/DC Converter Confidentiality Statement: This Data Sheet (including any attachments) is for the sole use of the intended recipient(s) and contains confidential, proprietary and privileged information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please immediately destroy all copies of the original message. Dual Channel 800mA High Efficiency Step-Down DC/DC Converter CAT7117 General Description The CAT7117 is a high efficiency step-down DC/DC converter using a constant frequency, current mode architecture. The device integrates a main switch and a synchronous rectifier for high efficiency without an external schottky diode. Supply current during operation is only 300µA and drops to < 1µA in shutdown. The CAT7117 can supply 800mA of load current from 2.5V to 5.5V input voltage. The output voltage can be regulated as low as 0.6V. Switching frequency is internally set at 1.8MHz, allowing the use of small surface mount inductors and capacitor. It can also run 100% duty cycle for low dropout applications. Application Cellular Telephones PDAs and Smart Phones MP3 Players Microprocessors and DSP Core Supplies Wireless and DSL Card Digital Still Cameras Slim-Type DVD Portable Instruments Pin Configuration Features High Efficiency up to 95% Low Quiescent Current < 300uA (active mode) 2.5V to 5.5V Input Voltage Range 800mA Output Current on each Channel Fix Frequ...