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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) 5V
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 Torex XC9140C502MR-G is a synchronous boost DC-DC converter that provides a fixed 5V output from an input voltage between 0.9V and 5.5V. With a maximum output current of 100mA, it is well-suited for powering USB OTG devices, 5V logic circuits, and portable audio equipment. The device comes in a compact SC-74A (SOT-753) package, enabling space-efficient designs. Its high-efficiency synchronous architecture helps extend battery life in portable applications.

  • Fixed 5V Output: Ideal for USB and standard 5V logic rails, eliminating the need for external feedback resistors.
  • Low 0.9V Startup: Can operate from nearly depleted batteries, maximizing energy extraction.
  • Synchronous Rectification: Improves efficiency compared to asynchronous designs, reducing heat and extending battery life.
  • Small Footprint: SC-74A/SOT-753 package fits into compact consumer and industrial designs.

USB On-the-Go (OTG) Power

When a portable device needs to provide 5V to a USB peripheral, this boost converter can generate the required 5V rail from a 3.7V Li-ion battery, enabling OTG functionality in smartphones and tablets.

5V Logic and Sensor Supply

Many industrial sensors and logic ICs require a 5V supply. The XC9140C502MR-G can step up from a lower battery voltage to provide a stable 5V rail in remote monitoring equipment.

Battery-Powered Audio Amplifiers

For portable speakers or headphone amplifiers, a regulated 5V supply ensures consistent audio output power and reduces distortion as the battery discharges.

Arduino and Maker Projects

In battery-powered Arduino projects, this converter can boost a 2xAA battery pack (2.4V-3.0V) to 5V, allowing the use of standard 5V shields and sensors.

Portable Chargers (Power Banks)

As a secondary boost stage, it can provide a clean 5V output for charging small devices from a single-cell battery, with the 100mA limit suitable for low-power wearables.

Automotive Sensor Interfaces

In automotive environments where the battery voltage can drop during cranking, the wide input range ensures a stable 5V output for sensors and CAN transceivers.

Q: What type of converter is the XC9140C502MR-G?
A: It is a synchronous step-up (Boost) DC-DC converter IC.
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 5V.
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 is available in SC-74A and SOT-753 packages.
Base Product Number : XC9140C502MR
0.9V-5.5V 100mA 5V Output Battery Boost DC-DC Converter Portable SC-74A SOT-753 USB OTG
Q: What type of converter is the XC9140C502MR-G?
A: It is a synchronous step-up (Boost) DC-DC converter IC.
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 5V.
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 is available in SC-74A and SOT-753 packages.