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XC9244 - Step-Down DC/DC Converter

General Description

ceramic capacitors.

Key Features

  • Driver Transistor Built-In : 0.65Њ P-ch Driver Transistor  0.45Њ N-ch Synchronous Switch Transistor Input Voltage : 2.3V ~ 6.0V Output Voltage Selectable High Efficiency : 0.8V ~ 4.0V (0.05V Increments) : 90% (TYP. )ˎ Output Current : 400mA Oscillation Frequency : 1.2MHz ±15% Maximum Duty Cycle Function   : 100% : Current Limiter Circuit (Constant Current & Latching) CL High Speed Discharge Soft Start Circuit Capacitor : Low ESR Ceramic Capacitor Control Methods : PWM (XC9.

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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.

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XC9244/XC9245 Series ETR0520-006 400mA Synchronous Step-Down DC/DC Converters ˙GENERAL DESCRIPTION ˑGreenOperation Compatible The XC9244/XC9245 series is a group of synchronous-rectification type step-down DC/DC converters with a built-in 0.65Њ P-channel MOS driver transistor and 0.45Њ N-channel MOS switching transistor, designed to allow the use of ceramic capacitors. Output current of 400mA (MAX.) to be configured using only a coil and capacitor connected externally. The output voltage can be set from 0.8V to 4.0V in increments of 0.05V (accuracy: ±2.0%). With an internal switching frequency of 1.2MHz, small external components can be used. USPN-6 package is suitable for the application which requires low profile and small-footprint.