Richtek USA Inc. RT9078-18GJ5
| 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 |
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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 | Fixed |
| 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 |
| ROHS |  |
The RT9078-18GJ5 is a high-performance low dropout linear regulator from Richtek, delivering a fixed 1.8V output with up to 300mA of current. Its ultra-low 4µA quiescent current and 75dB PSRR make it an excellent choice for battery-powered and noise-sensitive applications. Housed in a compact TSOT-23-5 package, it offers a dropout voltage of just 0.42V at full load, ensuring efficient operation across a wide range of portable electronics.
- Extended Battery Life: Ultra-low 4µA quiescent current minimizes standby power consumption.
- Clean Power Delivery: 75dB PSRR at 1kHz suppresses input noise for sensitive loads.
- High Efficiency: Low 0.42V dropout at 300mA maximizes usable voltage range.
- Compact Footprint: TSOT-23-5 package saves board space in space-constrained designs.
Battery-Powered IoT Sensors
The 4µA quiescent current and 300mA output make it ideal for extending battery life in always-on IoT sensor nodes.
Wearable Devices
Its low dropout of 0.42V at 300mA ensures stable 1.8V rail even as battery voltage depletes, critical for compact wearables.
Portable Audio Equipment
With 75dB PSRR at 1kHz, it effectively filters power supply noise for clean audio performance in portable DACs and amps.
Microcontroller Power Rails
Provides a clean, stable 1.8V supply for low-power MCUs, ensuring reliable operation in embedded control systems.
Energy Harvesting Systems
The ultra-low quiescent current preserves harvested energy, making it suitable for solar or thermal energy-powered applications.
- Q: What is the output voltage of the RT9078-18GJ5?
- A: The fixed output voltage is 1.8V.
- 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 0.42V at 300mA load.
- Q: What is the quiescent current?
- A: Ultra-low quiescent current of 4µA.
- Q: What package is available?
- A: Available in TSOT-23-5 package.
RT9078-18GJ5.pdf
- Q: What is the output voltage of the RT9078-18GJ5?
- A: The fixed output voltage is 1.8V.
- 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 0.42V at 300mA load.
- Q: What is the quiescent current?
- A: Ultra-low quiescent current of 4µA.
- Q: What package is available?
- A: Available in TSOT-23-5 package.
