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XC9303 - Synchronous Step-Up & Down DC/DC Controller

Description

The XC9303 series is highly efficient, synchronous PWM, PWM/PFM switchable step-up & down DC/DC controller ICs.

Features

  • nput Voltage Range : 2.0V ~ 10V Output Voltage Range Oscillation Frequency : 2.0V ~ 6.0V (set freely with VFB=0.9V) : 300kHz (±15%) Output Current : 800mA(VIN = 4.2V, VOUT=3.3V) Stand-By Function : 3.0μA (MAX. ) Maximum Duty Cycle : 78% (TYP. ) High Efficiency : 84% (TYP. ) Soft-Start Time : 10ms (internally fixed) Package : MSOP-8A Environmentally Friendly: EU RoHS Compliant, Pb Free.

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Full PDF Text Transcription

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XC9303 Series High Efficiency, Synchronous Step-Up & Down DC / DC Controller ICs ETR0602_005 ☆Green Operation Compatible ■GENERAL DESCRIPTION The XC9303 series is highly efficient, synchronous PWM, PWM/PFM switchable step-up & down DC/DC controller ICs. A versatile, large output current and high efficiency, step-up/down DC/DC controller can be realized using only basic external components - transistors, coil, diode, capacitors, and resistors for detecting voltages. High efficiency is obtained through the use of a synchronous rectification topology. The operation of the XC9303 series can be switched between PWM and PWM/PFM (auto switching) externally using the PWM pin.
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