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XCL210B331GR-G

XCL210B331GR-G

Torex Semiconductor Ltd
Non-Isolated PoL Module DC DC Converter 1 Output 3.3V 50mA 2V - 6V Input
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Overview

The XCL210B331GR-G is a micro DC/DC step-down converter with an integrated inductor, designed specifically for low-power and space-constrained designs. It provides a fixed 3.3V output at up to 50mA from an input range of 2V to 6V, making it ideal for battery-powered IoT nodes. This module uses a PFM control scheme to achieve high efficiency of up to 93 percent during light load conditions.

Why Choose This Part

This module integrates the inductor into a compact 2.5mm x 2.0mm CL-2025-02 package, significantly reducing EMI and simplifying PCB layout. Its synchronous PFM architecture ensures high efficiency even at very low output currents, extending battery life in dormant systems.

Applications

Wearable Devices
Provides efficient power for fitness trackers and smartwatches where PCB real estate is extremely limited.
Energy Harvesting
Converts low-power harvested energy to a stable 3.3V rail for wireless sensors due to its ultra-low quiescent current.
Remote IoT Sensors
Powers low-duty-cycle sensors that spend most of their time in sleep mode, benefiting from the 0.1 uA standby current.
Smart Cards
The low-profile 1.0mm height allows for integration into slim form-factor electronics.

Key Specifications

Type Non-Isolated PoL Module
Efficiency 93%
Applications ITE (Commercial)
Mounting Type Surface Mount
Power (Watts) 165 mW
Size / Dimension 0.10" L x 0.08" W x 0.04" H (2.5mm x 2.0mm x 1.0mm)
Number of Outputs 1
Voltage - Output 1 3.3V
Operating Temperature -40degC ~ 85degC
Voltage - Input (Max) 6V
Voltage - Input (Min) 2V
Current - Output (Max) 50mA
Supplier Device Package CL-2025-02

Getting Started

To implement this part, place 4.7uF ceramic capacitors close to the VIN and VOUT pins as recommended in the Torex layout guidelines. Since the inductor is internal, focus on minimizing the loop area of the input capacitor to ensure stable operation and low noise.

Also Consider

TPS62740 TITexas Instruments - Offers a higher 300mA output current with ultra-low 360nA operating quiescent current for similar low-power applications.
MAX17222 Maxim Integrated - A nanoPower boost converter useful if the input voltage drops below the required 3.3V output level.