Torex Semiconductor Ltd XC9140C392MR-G
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.82 | $1.82 |
| 15+ | $0.42 | $6.30 |
| 25+ | $0.41 | $10.25 |
| 50+ | $0.39 | $19.50 |
| 100+ | $0.35 | $35.00 |
| N+ | $0.07 | Price Inquiry |
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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) | 3.9V |
| 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 |
The Torex XC9140C392MR-G is a high-efficiency synchronous Boost DC-DC converter IC designed to deliver a fixed 3.9V output from a wide input voltage range of 0.9V to 5.5V. Capable of supplying up to 100mA, this converter is ideal for battery-powered and low-power applications. Its compact SC-74A/SOT-753 package makes it suitable for space-constrained designs. The device ensures stable performance across varying load conditions, making it a reliable choice for portable electronics, IoT devices, and other applications requiring a boosted voltage rail.
- Wide Input Voltage Range (0.9V to 5.5V): Enables operation from a single-cell battery down to 0.9V, maximizing battery utilization.
- Fixed 3.9V Output: Provides a stable, regulated voltage rail without the need for external resistor dividers, simplifying design.
- High Efficiency Synchronous Boost: Internal synchronous rectification improves efficiency, extending battery life in portable devices.
- Compact Package (SC-74A/SOT-753): Saves valuable PCB space, ideal for miniaturized electronic products.
Battery-Powered IoT Sensors
With a minimum input voltage of 0.9V, this boost converter can operate from a single alkaline or NiMH cell, efficiently stepping up to 3.9V to power sensors, microcontrollers, and wireless transceivers in IoT nodes.
Wearable Electronics
The compact SC-74A/SOT-753 package and low 100mA output capability make it ideal for space-constrained wearables like smart watches and fitness bands, where a stable 3.9V rail is needed from a small Li-ion or coin cell battery.
Portable Medical Devices
Devices such as glucose monitors and digital thermometers require reliable low-power operation. The XC9140C392MR-G ensures a consistent 3.9V supply even as the battery voltage drops, extending device runtime.
Remote Controls and Key Fobs
These battery-operated devices benefit from the converter's ability to boost a nearly depleted battery (down to 0.9V) to a usable 3.9V, ensuring consistent RF transmission power and reliable operation.
Energy Harvesting Systems
In systems powered by small solar cells or thermoelectric generators, the low 0.9V start-up voltage allows the converter to efficiently boost low, variable input voltages to a stable 3.9V for storage or direct use.
- Q: What type of converter is the XC9140C392MR-G?
- A: It is a synchronous Boost (step-up) 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 3.9V.
- 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.
- Q: What type of converter is the XC9140C392MR-G?
- A: It is a synchronous Boost (step-up) 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 3.9V.
- 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.

XC9140C392MR-G.pdf