Richtek USA Inc. RT9078N-18GJ5
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.93 | $0.93 |
| 15+ | $0.90 | $13.50 |
| 25+ | $0.88 | $22.00 |
| 50+ | $0.83 | $41.50 |
| 100+ | $0.74 | $74.00 |
| N+ | $0.15 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Richtek USA Inc. |
| Product Series | |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 5.5V |
| Voltage - Output (Min/Fixed) | 1.8V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.42V @ 300mA |
| Current - Output | 300mA |
| Current - Quiescent (Iq) | 4 µA |
| Current - Supply (Max) | - |
| PSRR | 75dB (1kHz) |
| Control Features | Enable |
| Protection Features | Over Current, Over Temperature |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | SOT-23-5 Thin, TSOT-23-5 |
| Supplier Device Package | TSOT-23-5 |
The RT9078N-18GJ5 from Richtek is a fixed 1.8V low dropout linear regulator offering 300mA output current. It features an ultra-low quiescent current of 4 µA and a dropout voltage of 0.42V at full load. With 75dB PSRR at 1kHz, it provides excellent noise rejection for sensitive electronics. The TSOT-23-5 package is perfect for compact, power-efficient designs.
- High Output Current: 300mA supports demanding digital loads.
- Ultra-Low Quiescent Current: 4 µA ideal for battery-powered IoT devices.
- Excellent PSRR: 75dB at 1kHz ensures clean output for audio and RF.
- Low Dropout: 0.42V at 300mA maximizes usable battery range.
FPGA Core Power
The 300mA output and 1.8V rail are ideal for FPGA core logic. The 75dB PSRR at 1kHz ensures clean power for high-speed digital circuits.
Portable Audio Players
Provides a low-noise 1.8V supply for audio DACs and amplifiers. The high PSRR eliminates audible hum from power lines.
Wireless IoT Modules
Powers 1.8V I/O and logic in Wi-Fi and LoRa modules. The 4 µA quiescent current extends battery life in sleep mode.
Smart Home Sensors
Ideal for battery-powered sensors requiring 1.8V. The low dropout allows operation from a 2V battery until fully discharged.
Medical Wearables
Provides stable power for biosignal processing ICs. The compact TSOT-23-5 package fits small medical patches.
Embedded Systems
Regulates 1.8V for MCUs and peripherals. The 300mA capacity supports multiple loads simultaneously.
- Q: What is the output voltage?
- A: The RT9078N-18GJ5 provides a fixed 1.8V output.
- Q: What is the maximum output current?
- A: It can supply up to 300mA of output current.
- Q: What is the input voltage range?
- A: The input voltage starts from 1.8V.
- Q: What is the dropout voltage?
- A: Dropout voltage is 0.42V at 300mA load.
- Q: What is the quiescent current?
- A: Quiescent current is only 4 µA.
- Q: What is the PSRR?
- A: PSRR is 75dB at 1kHz, excellent for noise rejection.
RT9078N-18GJ5.pdf
- Q: What is the output voltage?
- A: The RT9078N-18GJ5 provides a fixed 1.8V output.
- Q: What is the maximum output current?
- A: It can supply up to 300mA of output current.
- Q: What is the input voltage range?
- A: The input voltage starts from 1.8V.
- Q: What is the dropout voltage?
- A: Dropout voltage is 0.42V at 300mA load.
- Q: What is the quiescent current?
- A: Quiescent current is only 4 µA.
- Q: What is the PSRR?
- A: PSRR is 75dB at 1kHz, excellent for noise rejection.
