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FSP3112 Datasheet(PDF) 1 Page - FOSLINK SEMICONDUCTOR CO.,LTD |
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FSP3112 Datasheet(HTML) 1 Page - FOSLINK SEMICONDUCTOR CO.,LTD |
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1 / 10 page  DUAL CHANNEL1.5 MHZ, 600MA SYNCHRONOUS STEP-DOWN CONVERTER 2007-7-11 1/10 FSP3112 APPLICATIONS Portable Media Players Digital Still Cameras Cellular Telephones PDAs Wireless and DSL modems PIN CONFIGURATION (Top View) (Top View) 10-Lead (3mm ×3mm) Plastic DFN 10-Lead Plastic MSOP Exposed Pad is PGND (Pin 11) Exposed Pad is PGND (Pin 11) Must be connected to GND. Must be connected to GND. FEATURES High Efficiency : Up to 96% 1.5MHz Constant Frequency Operation 600mA Output Current at VIN=3.0V Very Low Quiescent Current of 500µA No Schottky Diode Required Low RDS(ON) Internal Switches: 0.35Ω 0.6V reference allows low Output Voltage Current Mode Operation for excellent line and load transient Response Short-Circuit &Thermal Fault Protection ＜ 1µA Shutdown Current Power-on Reset Output Externally Synchronized Oscillator Small Thermally Enhanced MSOP10 and DFN10 Packages 1 2 3 4 5 9 8 7 6 10 11 EXPOSED PAD VFB1 RUN1 VIN SW1 GND VFB2 RUN2 POR SW2 NC 1 2 3 4 5 9 8 7 6 10 11 EXPOSED PAD VFB1 RUN1 VIN SW1 GND VFB2 RUN2 POR SW2 NC GENERAL DESCRIPTION The FSP3112 is a dual channel high efficiency monolithic synchronous step down current mode DC-DC converter operating at 1.5MHz constant frequency. The device integrates a main switch and a synchronous rectifier for high efficiency without an external Schottky diode for each of the channels. The FSP3112 can operate from a 2.5V to 5.5V input voltage and is ideal for powering portable equipment that runs from a single cell lithium-Ion (Li+) battery. It can supply 600mA output current for each channel and can also run at 100% duty cycle for low dropout operation, extending battery life in portable system. For FSP3112, Pulse Skipping Mode operation at light loads provides very low output ripple voltage for noise sensitive applications. |
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Similar Description - FSP3112 |
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