XCL231 Series

36V, 600mA Inductor Built-in Step-Down DC/DC Converter “microDC/DC”

The XCL231 Series is a 36V, 600mA step-down DC/DC converter with an integrated control IC and coil. Integrating the coil makes for easier circuit board layout and minimizes malfunction and noise from the component and wiring layout. The input voltage range is 3.0 to 36V, the switching frequency is 1.2MHz, and a synchronous rectification circuit is used to achieve a stable power supply at high efficiency. The DFN3030-10B (3.0×3.0, h=1.6mm) package is used for a small package size.

The XCL231 Series automatically switches between PWM and PFM control to reduce loss by lowering the operation frequency during low loads to achieve high efficiency across the entire range from low to high loads.A 0.75V standard voltage supply is built in, and the output voltage can be set to 1.0V to 5.0V using an external resistance.

The soft start time is internally set to 2.0ms, and a time that is longer than the internal soft-start can be freely set depending on the resistance and capacity connected to the EN/SS pin. An overcurrent protection function and thermal shutdown function are built in as protective functions to ensure safe use in the event of a short circuit.

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Mar 2, 2020
Product News
36V, 600mA Inductor Built-in Step-Down DC/DC Converter Expanded Lineup of “microDC/DC” XCL230/XCL231 Series

Typical Application Circuit

Features

Input Voltage Range 3.0V ~ 36V (Absolute Max 40V)
Output Voltage Range 1.0V ~ 5.0V
FB Voltage 0.75V ± 1.5%
Output Current 600mA
Oscillation Frequency 1.2MHz
Efficiency 86%(VIN=12V,VOUT=5V, IOUT=300mA)
Control Methods PWM/PFM Auto
Function Soft-start External Settings
Power good
Protection Circuits Over Current Protection(Automatic Recovery)
Thermal Shutdown
Output Capacitor Ceramic Capacitor
Operating Ambient Temperature -40℃ ~ +105℃
Environmentally Friendly EU RoHS Compliant, Pb Free

Packages

DATA SHEET

Technical Document

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