3PEAK TPL503128-S5TR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.53 | $0.53 |
| 15+ | $0.52 | $7.80 |
| 25+ | $0.50 | $12.50 |
| 50+ | $0.48 | $24.00 |
| 100+ | $0.42 | $42.00 |
| N+ | $0.08 | Price Inquiry |
Request Quote / Inquiry
| Product attributes | Property Value |
| Manufacturer | 3PEAK |
| Product Series | |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 5.5V |
| Voltage - Output (Min/Fixed) | 2.8V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.34V @ 300mA |
| Current - Output | 300mA |
| Current - Quiescent (Iq) | - |
| Current - Supply (Max) | - |
| PSRR | 70dB ~ 54dB (1kHz ~ 1MHz) |
| Control Features | Enable |
| Protection Features | Over Current, Over Temperature, Short Circuit |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | SC-74A, SOT-753 |
| Supplier Device Package | SOT-23-5 |
| ROHS |
The TPL503128-S5TR is a fixed 2.8V low dropout linear regulator from 3PEAK, rated for 300mA output current. It features a dropout voltage of 0.34V at full load and excellent PSRR of 70dB to 54dB from 1kHz to 1MHz. The SOT-23-5 package makes it suitable for compact, high-performance power management.
- Higher Current Capacity: 300mA output supports more demanding loads than typical 200mA LDOs.
- Excellent Ripple Rejection: 70dB PSRR at 1kHz ensures clean power for analog and RF circuits.
- Reasonable Dropout: 0.34V at 300mA balances efficiency and headroom.
- Compact Package: SOT-23-5 enables dense PCB layouts.
High-Current Sensor Arrays
With 300mA output capability, this LDO can power multiple sensors (e.g., temperature, humidity, pressure) simultaneously from a single 2.8V rail in industrial data loggers.
RF Power Amplifiers
The high PSRR of 70dB at 1kHz ensures a clean supply for RF PA drivers, reducing spurious emissions in 2.4GHz ISM band transmitters.
Battery-Powered Cameras
The 0.34V dropout at 300mA allows efficient operation from a 3.7V Li-ion battery, providing stable 2.8V for image sensors and DSPs.
Portable Gaming Consoles
This regulator supports the higher current demands of gaming controllers and handheld consoles, delivering stable 2.8V for logic and display drivers.
Medical Monitoring Patches
The SOT-23-5 package and 300mA current capability make it suitable for wearable ECG/EEG patches that require a stable 2.8V supply for analog front-ends.
- Q: What is the output voltage?
- A: The fixed output voltage is 2.8V.
- Q: What is the maximum output current?
- A: It can provide up to 300mA of output current.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; please refer to the datasheet.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.34V at a 300mA load.
- Q: What is the quiescent current?
- A: The quiescent current is not specified in the provided data.
- Q: What package is available?
- A: This LDO is available in a SOT-23-5 package.
- Q: What is the output voltage?
- A: The fixed output voltage is 2.8V.
- Q: What is the maximum output current?
- A: It can provide up to 300mA of output current.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; please refer to the datasheet.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.34V at a 300mA load.
- Q: What is the quiescent current?
- A: The quiescent current is not specified in the provided data.
- Q: What package is available?
- A: This LDO is available in a SOT-23-5 package.

TPL503128-S5TR.pdf