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Product attributes Property Value
Manufacturer Torex Semiconductor Ltd
Product Series XC9140
Packaging Tape & Reel (TR) |
Function Step-Up
Output Configuration Positive
Topology Boost
Output Type Fixed
Number of Outputs 1
Voltage - Input (Min) 0.9V
Voltage - Input (Max) 5.5V
Voltage - Output (Min/Fixed) 3.2V
Voltage - Output (Max) -
Current - Output 100mA
Frequency - Switching -
Synchronous Rectifier Yes
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification -
Mounting Type Surface Mount
Package / Case SC-74A, SOT-753
Supplier Device Package SOT-25
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The XC9140C321MR-G from Torex Semiconductor is a synchronous boost DC-DC converter that provides a fixed 3.2V output from a 0.9V to 5.5V input. It supports up to 100mA of output current, making it ideal for battery-powered applications such as wearables, IoT devices, and portable electronics. The device comes in a compact SC-74A (SOT-753) package, offering a space-efficient solution for modern designs.

  • Low Start-Up Voltage: Operates from 0.9V, perfect for single-cell batteries.
  • High Efficiency: Synchronous rectification extends battery life.
  • Compact Package: SC-74A/SOT-753 saves valuable board space.
  • Fixed Output: Regulated 3.2V ensures stable performance.

Low-Power Microcontrollers

Many MCUs operate at 3.2V; this converter can power them from a single cell, enabling battery-operated sensor nodes.

Bluetooth Low Energy Beacons

BLE beacons require a stable voltage for consistent broadcasting; this boost converter ensures reliable operation from a coin cell or AA battery.

Portable Thermometers

Digital thermometers can maintain accuracy with a regulated 3.2V supply, even as the battery voltage declines.

Wearable Fitness Trackers

Fitness bands with displays and sensors benefit from the high efficiency and small package, extending battery life.

Remote Keyless Entry

Car key fobs can use this converter to boost a single battery to 3.2V, ensuring reliable RF transmission.

Q: What type of converter is the XC9140C321MR-G?
A: It is a synchronous step-up (Boost) DC-DC converter.
Q: What is the input voltage range?
A: The input voltage range is from 0.9V to 5.5V.
Q: What is the output voltage?
A: The fixed output voltage is 3.2V.
Q: What is the maximum output current?
A: The maximum output current is 100mA.
Q: What is the switching frequency?
A: The switching frequency is not specified in the provided data.
Q: What package is available?
A: It comes in SC-74A and SOT-753 packages.
Base Product Number : XC9140C321MR
0.9V-5.5V 100mA 3.2V Battery Powered BLE Boost DC-DC Converter SC-74A SOT-753 Wearable
Q: What type of converter is the XC9140C321MR-G?
A: It is a synchronous step-up (Boost) DC-DC converter.
Q: What is the input voltage range?
A: The input voltage range is from 0.9V to 5.5V.
Q: What is the output voltage?
A: The fixed output voltage is 3.2V.
Q: What is the maximum output current?
A: The maximum output current is 100mA.
Q: What is the switching frequency?
A: The switching frequency is not specified in the provided data.
Q: What package is available?
A: It comes in SC-74A and SOT-753 packages.