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XC9242 - 2A Synchronous Step-Down DC/DC Converter

General Description

The XC9242/XC9243 series is a group of synchronous-rectification step-down DC/DC converters with a built-in 0.11Ω Pchannel MOS driver transistor and 0.12Ω N-channel MOS switching transistor, designed to allow the use of ceramic capacitors.

Key Features

  • er Transistor Input Voltage Range Output Voltage Setting FB Voltage High Efficiency Output Current Oscillation Frequency Maximum Duty Cycle Functions Output Capacitor Control Methods Operating Ambient Temperature Packages Environmentally Friendly : 0.11Ω P-ch Driver Transistor 0.12Ω N-ch Switching Transistor : 2.7V ~ 6.0V : 0.9V ~ VIN : 0.8V ± 2.0% : 95% : 2.0A : 1.2MHz±15%, 2.4MHz±15% : 100% : Soft-Start CL Discharge Current Limit Circuit(automatic return) Thermal Shutdown UVLO : Low ESR Ceram.

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XC9242/XC9243 Series ETR05021-013 2A Synchronous Step-Down DC/DC Converters ☆Green Operation Compatible ■GENERAL DESCRIPTION The XC9242/XC9243 series is a group of synchronous-rectification step-down DC/DC converters with a built-in 0.11Ω Pchannel MOS driver transistor and 0.12Ω N-channel MOS switching transistor, designed to allow the use of ceramic capacitors. The small on-resistances of these two internal driver transistors enable a high efficiency, stable power supply with an output current up to 2A. The XC9242/XC9243 series has operating voltage range of 2.7V~6.0V and a 0.8V (±2.0%) reference voltage, and using externally connected resistors, the output voltage can be set freely from 0.9V. With an internal switching frequency of 1.2MHz or 2.