36V, 600mA Inductor Built-in Step-down “micro DC/DC” Converter
The XCL230/XCL231 Series is a small (3.0mm×3.0mm, h=1.7mm) 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 XCL230 Series fixes the operation frequency using PWM control to suppress output
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.
● Electricity Meters
● Gas Detectors
● Various Sensors
● Industrial Equipment
● Home Appliances
Input Voltage Range
Output Voltage Range
Operating Ambient Temperature
: 3.0V ~ 36V (Absolute Max 40V)
: 1.0V ~ 5.0V
: 0.75V ± 1.5%
: 86%(VIN=12V,VOUT=5V, IOUT=300mA)
: PWM control (XCL230)
: PWM/PFM Auto (XCL231)
: Soft-start External settings
Over Current Protection
: Ceramic Capacitor
: -40℃ ~ ＋105℃
: EU RoHS Compliant, Pb Free
■TYPICAL APPLICATION CIRCUIT
Output current : IOUT [mA]