Nisshinbo Micro Devices Inc. RP114K281B-TR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.57 | $1.57 |
| 15+ | $0.36 | $5.40 |
| 25+ | $0.35 | $8.75 |
| 50+ | $0.33 | $16.50 |
| 100+ | $0.29 | $29.00 |
| N+ | $0.06 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Nisshinbo Micro Devices Inc. |
| Product Series | RP114x |
| Packaging | Tape & Reel (TR) | |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 5.25V |
| Voltage - Output (Min/Fixed) | 2.8V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.3V @ 300mA |
| Current - Output | 300mA |
| Current - Quiescent (Iq) | 75 μA |
| Current - Supply (Max) | - |
| PSRR | 75dB (1kHz) |
| Control Features | Enable |
| Protection Features | Over Current |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 4-UDFN Exposed Pad |
| Supplier Device Package | DFN(PL)1010-4 |
| ROHS |  |
The RP114K281B-TR from Nisshinbo Micro Devices is a fixed 2.8V low dropout linear regulator delivering up to 300mA. Its ultra-compact DFN(PL)1010-4 package and 75 μA quiescent current make it suitable for battery-powered and space-limited designs. With a dropout voltage of just 0.3V at full load and 75dB PSRR at 1kHz, it provides clean, stable power for noise-sensitive applications.
- Extended Battery Life: 75 μA quiescent current minimizes standby power draw in portable devices.
- Clean Output: 75dB PSRR at 1kHz suppresses ripple and noise for sensitive analog circuits.
- Space-Saving: DFN(PL)1010-4 package (1.0mm x 1.0mm) enables ultra-compact PCB layouts.
- High Efficiency at Low Dropout: 0.3V dropout at 300mA allows operation close to the battery end-of-life voltage.
Battery-Powered IoT Sensors
The 75 μA quiescent current and 300mA capability make it ideal for always-on sensor nodes, extending battery life while supporting periodic high-current radio bursts.
Portable Medical Devices
With 75dB PSRR at 1kHz, this LDO effectively rejects power supply noise, ensuring clean power for sensitive analog front-ends in glucose monitors or pulse oximeters.
Wearable Electronics
The compact DFN(PL)1010-4 package (1.0mm x 1.0mm) fits space-constrained smartwatch and fitness tracker PCBs, providing stable 2.8V for low-power MCUs.
Wireless Modules
For Bluetooth Low Energy or Zigbee modules, the 300mA peak current handles transmission spikes while the low dropout of 0.3V maintains regulation even as the battery discharges.
Audio Codec Power
The high PSRR at audio frequencies reduces supply-induced noise in portable speakers or headphones, improving signal-to-noise ratio for clearer sound.
Industrial Control References
Stable 2.8V output with low quiescent current supports always-on reference rails in industrial sensors, minimizing power waste in 24V to 3.3V conversion chains.
- Q: What is the output voltage of the RP114K281B-TR?
- A: The fixed output voltage is 2.8V.
- Q: What is the maximum output current?
- A: It can deliver up to 300mA.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; refer to the datasheet.
- Q: What is the dropout voltage?
- A: Dropout voltage is 0.3V at 300mA output.
- Q: What is the quiescent current?
- A: The quiescent current is 75 μA.
- Q: What package is available?
- A: It comes in a DFN(PL)1010-4 package.
RP114K281B-TR.pdf
- Q: What is the output voltage of the RP114K281B-TR?
- A: The fixed output voltage is 2.8V.
- Q: What is the maximum output current?
- A: It can deliver up to 300mA.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; refer to the datasheet.
- Q: What is the dropout voltage?
- A: Dropout voltage is 0.3V at 300mA output.
- Q: What is the quiescent current?
- A: The quiescent current is 75 μA.
- Q: What package is available?
- A: It comes in a DFN(PL)1010-4 package.
