Torex Semiconductor Ltd XC9140C422MR-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) | 4.2V |
| 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 |
The Torex XC9140C422MR-G is a synchronous Boost DC-DC converter that provides a fixed 4.2V output from an input voltage between 0.9V and 5.5V. With a maximum output current of 100mA, it is designed for low-power, battery-operated applications. The converter is available in a compact SC-74A/SOT-753 package, making it easy to integrate into space-constrained designs. Its high-efficiency synchronous operation helps to maximize battery life, making it an excellent choice for portable electronics, charging circuits, and other applications requiring a stable 4.2V supply.
- Optimal for Li-Ion Charging: The 4.2V output aligns with the standard full-charge voltage for single-cell Li-ion batteries.
- Low Input Voltage Operation: Can start from as low as 0.9V, allowing use with nearly depleted batteries.
- Efficient Power Conversion: Synchronous rectification reduces heat and improves efficiency, especially in battery-powered designs.
- Easy Integration: The small SC-74A/SOT-753 package simplifies PCB layout and reduces overall solution size.
Li-Ion Battery Charging
The 4.2V output is perfectly matched to the full-charge voltage of a single-cell Li-ion battery, making this converter ideal for portable solar chargers or battery management systems that need to boost a lower voltage to charge the battery.
USB Power Delivery (Legacy)
For legacy USB devices requiring 4.2V, this converter can step up from a lower battery voltage to provide a stable power source, ensuring compatibility with older peripherals.
Portable Instrumentation
Precision instruments like digital calipers or thermocouple readers often need a stable 4.2V rail for their analog front-ends. This boost converter ensures accurate readings by providing a clean, regulated supply.
RF Transmitters
Short-range RF transmitters and beacons require a stable voltage for consistent output power. The XC9140C422MR-G boosts battery voltage to 4.2V, ensuring reliable signal transmission.
Backup Power Systems
In systems with a backup battery, this converter can maintain a 4.2V rail for critical circuits, ensuring seamless operation during main power loss.
- Q: What type of converter is the XC9140C422MR-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 4.2V.
- 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 is available in SC-74A and SOT-753 packages.
- Q: What type of converter is the XC9140C422MR-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 4.2V.
- 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 is available in SC-74A and SOT-753 packages.

XC9140C422MR-G.pdf