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XCL210 Ultra Low Power Buck Micro DC/DC with Integrated Coil

Ultra Low Power Buck Micro DC/DC with Integrated Coil image


Property XCL210
Output Current 200mA
Input Voltage 2.0 ~ 6.0V
Output Voltage 1.0 ~ 4.0V
Oscillation Frequency -
Quiescent Current 0.5µA
Packages CL-2025-02

Product Description

Ultra Low Power Buck Micro DC/DC with Integrated Coil

Application Notes

The XCL210 is a Micro DC/DC Converter with integrated Coil that consumes only 0.5μA during operation making it ideal for applications that run from batteries for long periods of time. This ultra low quiescent current is achieved by implementing a synchronous PFM architecture to minimize the switching losses during low loads.

Developed using Torex’s proprietary CMOS process, the XCL210’s DC/DC circuit integrates a 0.5Ω P-ch driver transistor and a 0.5Ω synchronous N-ch switching transistor to ensure high levels of efficiency and superior performance for demanding battery powered applications.

By integrating the coil, Torex has further simplified the circuit layout for the designer and reduced the number of external components normally needed to implement this type of DC/DC solution. The smaller circuit layout also means less PCB tracking, which helps further reduce the radiated noise.  Only two ceramic capacitors are needed externally and the XCL210 is able to operate from 6.0V down to inputs as low as 2.0V to help further maximise battery life in portable applications.

The output voltage is set internally between 1.0V to 4.0V (±2%) in 0.5mV increments. The XCL210 series also features an enable pin to turn the IC on and off and an optional CL discharge function that can quickly discharge the output capacitor when the IC is turned off. During stand-by, all circuits are shutdown to reduce consumption to less than 0.1μA.