ZTP7108T Datasheet | ZillTek

FEATURES 2A output current Current mode operation High efficiency up to 95% Shutdown current < 1µA 2.5V to 5.5V supply voltage Over temperature protection Constant frequency operation Full duty ratio, 0 - 100% in dropout Ro HS pliant and Lead (Pb) Free APPLICATIONS Cellular phones PDAs and smart phones MP3 players Digital still cameras Slim-type DVD Wireless and DSL card Microprocessors and DSP core supplies Portable instruments DESCRIPTION ZTP7108 is a high efficiency step down DC/DC converter operated with current mode and constant frequency. The internal switch and synchronous rectifier are integrated for high efficiency. External Schottky diodes are not required. The supply current is only 120µA during operation and drops to less than 1µA in shutdown. ZTP7108 can supply 2A of load current from 2.5V to 5.5V supply voltage. The switching frequency is set at 1.5MHz, allowing the use of small surface mount inductors and capacitors. It can run 100% duty cycle for low dropout application. The output voltage of ZTP7108 is adjustable from the FB pin. ZTP7108 is Ro HS pliant and Lead (Pb) Free. Pins Configuration ORDERING INFORMATION PART ZTP7108T ZTP7108D PACKAGE Output Ship, Quantity TSOT23-5L Adjust. Tape and Reel TDFN 2x2-6L Adjust. Tape and Reel Typical Application Circuit, Adjustable Output Voltage Vout = VFB × (1 + R1/R2) with R1 = 300k for typical application, and C1 should be in the range between 10p F and 47p F for ponent selection. DS-18; Jan. 20, 2014 -1- Copyright © Zill Tek Technology Corp. 4F-3, No.5, Technology Rd., Science-Based Industrial Park, Hsinchu 30078, Taiwan Tel: (886) 3577 7509; Fax: (886) 3577 7390 Email: sales@zilltek. ZTP7108 Absolute Maximum Ratings (Note 1) Vin to GND …………………………………………… - 0.3V to +6V SW Voltage to GND ...…………………… - 0.3V to Vin+0.3V EN Voltage to GND ..……………………………… - 0.3V to Vin FB/Vout to GND ..………………………………… - 0.3V to Vin SW Peak Current ………………………………………….………. 3A Operating Temperature Range ……...… - 40°C to +85°C Junction...