36V, 600mA Inductor Built-in Step-down “micro DC/DC” Converter

The XCL248 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 3.0V to 36.0V, and the switching frequency is 1.2MHz, making it possible to supply a stable voltage with high efficiency. The output voltage can be changed from 2.8V to 6.0V using an external resistor, so the same part number can be used for multiple power lines.
By connecting a resistor and capacitance to the EN/SS terminal, it is possible to externally adjust the soft start time longer than the internal soft start.
The power good function also monitors the output voltage status. This soft start external adjustment function and power good function make it easy to configure the power supply sequence.
The built-in current limiter and thermal shutdown functions as protection functions make it safe to use.

Feature

Input Voltage Range 3.0V ~ 36.0V
Peak voltage 46V(Applied Time≦400ms)
Output Voltage Range 2.8V ~ 6.0V
Output Current 600mA
Oscillation Frequency 1.2MHz
Quiescent Current 11μA
Efficiency 86% (VIN=12V,VOUT=5V, IOUT=300mA)
Control Methods PWM/PFM
Protection functions Current Limit
Thermal Shutdown
Functions Soft start (external adjustment)
Power Good
Output Capacitor Ceramic Capacitor
Operating Ambient Temperature -40℃~ 105℃

Typical Application Circuit

Technical Document

Packages

Package Number of Pins Pcs/Reel Package Size(mm)
DFN3030-10B 10 3,000 3.0 x 3.0 x 1.7

XCL248 Series Part Numbers

Part number Sample FB Voltage Oscillation Frequency Packages EDA Online Store
XCL248B0K1H2-G 0.75V 1.2MHz DFN3030-10B

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