Torex Semiconductor XCL109 & XCL110 Step-up Micro DC/DC Converters

Torex Semiconductor XCL109 and XCL110 Step-up Micro DC/DC Converters incorporate the IC and coil into a compact CL-2025-02 package with 2.5mm x 2mm x 1.04mm dimensions. These space-saving step-up DC/DC converters require only small input and output capacitors as peripheral components. The XCL109 and XCL110 converters can start operation from a 0.9V input voltage, making them ideal for devices powered by a single alkaline or nickel-metal hydride battery. The output voltage is adjustable in 0.1V increments within a 1.8V to 5.5V range, and the modules support an operating ambient temperature of up to +105°C. Torex XCL109 and XCL110 Step-up Micro DC/DC Converters are ideal for portable equipment, beauty and health equipment, wearables, and other devices requiring compactness, low power consumption, and high functionality/performance while prioritizing battery life.

Features

Types
- Load disconnect - cuts off the connection between input and output during standby, minimizing battery consumption
- Bypass - maintains the connection between input and output during MCU sleep mode, supplying the battery voltage directly
- Output OR - for output OR connections in configurations with multiple power lines or backup systems

Thermal shutdown
Current limit
Soft-start
Ceramic capacitor
Pin-compatible with other inductor built-in step-up DC/DC products
EU RoHS compliant, lead-free

Applications

Portable equipment
Beauty and health equipment
Wearable devices
Games and hobbies

PC peripherals
Devices with 1 to 3 alkaline, 1 to 3 nickel hydride, or 1 lithium and 1 Li-ion batteries

Specifications

0.65V to 6V input voltage range (0.9V operation start voltage)
Fixed output voltage
- 1.8V to 5.5V (A, B, C type)
- 2.2V to 5.5V (except A, B, C type)
3MHz oscillation frequency
Output current
- 610mA at V_OUT=5.0V, V_IN=3.3V
- 380mA at V_OUT=3.3V, V_IN=1.8V

Load transient response
- 100mV at V_OUT=3.3V, V_IN=1.8V
- I_OUT=1mA→200mA (tr=5μs)
Control mode selection
- XCL109: PWM
- XCL110: PWM/PFM
CL-2025-02 package (2.5mm x 2mm x 1.04mm)
-40°C to +105°C operating ambient temperature range