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XC9267 - Step-Down DC/DC Converter

Description

and N-channel MOS switching transistor.

The XC9267 series has operating voltage range of 3.0V~36.0V and high-efficiency power supply up to an output current of 600mA.

Features

  • Input Voltage Range Output Voltage Range FB Voltage Oscillation Frequency Output Current Control Methods Soft-start Time Protection Circuits Output Capacitor Operating Ambient Temperature Packages Environmentally Friendly : 3.0 ~ 36V (Absolute Max 40V) 1.0 ~ 25V : 0.75V±1.5% : 1.2MHz, 2.2MHz : 600mA : PWM control Efficiency88%@12V→5V, 300mA : Adjustable by RC : Over Current Protection : Thermal Shutdown : Ceramic Capacitor : -40℃ ~ 105℃ : SOT-89-5 (Without Power Good) : USP-6C (With Power Good.

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Full PDF Text Transcription

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XC9267 Series is Not Recommended for New Designs. XC9267 Series 36V Operation 600mA Synchronous Step-Down DC/DC Converters ETR05054-005 ■GENERAL DESCRIPTION The XC9267 series are 36V operation synchronous step-down DC/DC converter ICs with a built-in P-channel MOS driver transistor and N-channel MOS switching transistor. The XC9267 series has operating voltage range of 3.0V~36.0V and high-efficiency power supply up to an output current of 600mA. Low ESR capacitors such as ceramic capacitors can be used for the load capacitor (CL). A 0.75V reference voltage source is incorporated in the IC, and the output voltage can be set to a value from 1.0V to 25.0V using external resistors (RFB1, RFB2). 1.2MHz or 2.2MHz can be selected for the switching frequency.
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