50mA/200mA Inductor Built-in Step-Down “micro DC/DC” Converters

The XCL210 series is a synchronous step-down micro DC/DC converter which integrates an inductor and a control IC in one tiny package (2.0mm×2.5mm, h=1.0mm). An internal coil simplifies the circuit and enables minimization of noise and other operational trouble due to the circuit wiring. A wide operating voltage range of 2.0V to 6.0V enables support for applications that require an internally fixed output voltage from 1.0V to 4.0V in increments of 0.05V.

During stand-by, all circuits are shutdown to reduce currentconsumption to as low as 0.1μA or less.

With the built-in UVLO (Under Voltage Lock Out) function, the internal P-channel MOS driver transistor is forced OFF when input voltage becomes UVLO detect Voltage or lower.

The XCL210 integrate CL discharge function which enables the electric charge at the output capacitor CL to be discharged via the internal discharge switch located between the LX and VSS pins. When the devices enter stand-by mode, output voltage quickly returns to the VSS level as a result of this function.


Input Voltage Range2.0V~6.0V
Output Voltage Range1.0V~4.0V(±2.0%)
Control MethodsPFM
Output Current200mA(Type A/C)
50mA(Type B/D)
Quiescent Current0.5μA
Short Circuit Protection
CL Discharge(Type C/D)
CapacitorLow ESR Ceramic
Operating Ambient Temperature-40℃~+85℃
Environmentally FriendlyEU RoHS compliant, Pb free

Typical Application Circuit

Quality Reports

Technical Document


Package Number of Pins Package Size(mm) Package Size(mm)
CL-2025-02 6 3,000 2.0 x 2.5 x 1.04

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