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XC9271 - 30V Driver Transistor Built-In Step-Down DC/DC Converters

Download the XC9271 datasheet PDF. This datasheet also covers the XC9270 variant, as both devices belong to the same 30v driver transistor built-in step-down dc/dc converters family and are provided as variant models within a single manufacturer datasheet.

General Description

The XC9270/XC9271 series are 30V operation step-down DC/DC converter ICs with an internal driver transistor.

The internal Nch driver transistor is driven by bootstrap to achieve a stable, high-efficiency power supply up to an output current of 2.0A.

Key Features

  • Input Voltage : 7V ~ 30V FB Voltage : 0.8V (±2%) Oscillation Frequency : 300kHz, 500kHz Maximum Output Current : 2.0A Control Method : PWM (XC9270) PWM/PFM (XC9271) Soft-start : External Capacitor (set by external capacitor C) Protection Circuit : Over Current Protection 3.2A (TYP. ) Integral Latch Method (XC9270 / XC9271A) Automatic Recovery (XC9270 / XC9271B) Thermal Shutdown Low ESR Ceramic Capacitor : Ceramic Capacitor Operating Ambient Temperature : -40℃ ~ 105℃ Package.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (XC9270-Torex.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

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XC9210 Synchronous Step-Down DC/DC Controller Torex Semiconductor

Other Datasheets by Torex Semiconductor

Part Number Description
XC9270 30V Driver Transistor Built-In Step-Down DC/DC Converters
XC9272 Ultra Low Quiescent Current Synchronous Step-Down PFM DC/DC Converter
XC9274 Step-Down DC/DC Converter
XC9275 Step-Down DC/DC Converter
XC9276 Synchronous Step-Down PFM DC/DC Converter

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
XC9270/XC9271 Series 30V Driver Transistor Built-In Step-Down DC/DC Converters ETR05048-004a ■GENERAL DESCRIPTION The XC9270/XC9271 series are 30V operation step-down DC/DC converter ICs with an internal driver transistor. The internal Nch driver transistor is driven by bootstrap to achieve a stable, high-efficiency power supply up to an output current of 2.0A. Low ESR capacitors such as ceramic capacitors can be used for the load capacitor (CL). A 0.8V reference voltage source is incorporated in the IC, and the output voltage can be set to a value from 1.2V to 12.0V using external resistors (RFB1, RFB2). 300kHz or 500kHz can be selected for the switching frequency.