Richtek USA Inc. RT9166-18GVL
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.68 | $0.68 |
| 15+ | $0.66 | $9.90 |
| 25+ | $0.65 | $16.25 |
| 50+ | $0.61 | $30.50 |
| 100+ | $0.54 | $54.00 |
| N+ | $0.11 | 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) | 0.23V @ 300mA (Typ) |
| Current - Output | 300mA |
| Current - Quiescent (Iq) | 300 µA |
| Current - Supply (Max) | - |
| PSRR | 55dB (1kHz) |
| Control Features | - |
| Protection Features | Over Current, Over Temperature |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | TO-236-3, SC-59, SOT-23-3 |
| Supplier Device Package | SOT-23-3L |
| ROHS |  |
The Richtek RT9166-18GVL is a reliable 300mA fixed-output LDO regulator providing a stable 1.8V supply. With a low typical dropout voltage of 0.23V and a modest quiescent current of 300µA, it balances efficiency and performance. The standard SOT-23-3L package ensures easy integration into a wide range of applications.
- Efficient Power Conversion: Low 0.23V dropout voltage maximizes efficiency in battery-operated systems.
- Stable Output: 55dB PSRR at 1kHz provides good noise rejection for sensitive loads.
- Industry-Standard Package: SOT-23-3L is widely used and easy to manufacture.
- Adequate Current: 300mA output is sufficient for many MCU and logic applications.
Microcontroller Power Supply
The 1.8V output and 300mA capability are well-suited for powering low-voltage MCUs in embedded control systems.
Battery-Powered Handheld Tools
Low dropout voltage (0.23V) maximizes usable battery capacity, allowing the regulator to operate efficiently as the battery discharges.
Industrial Sensor Interfaces
Stable 1.8V rail with 55dB PSRR at 1kHz ensures reliable operation of analog sensor signal conditioning circuits.
Consumer Electronics Peripherals
Compact SOT-23-3L package and adequate current make it ideal for USB peripherals and small consumer gadgets.
Memory & Logic ICs
Provides a clean, regulated 1.8V supply for DDR memory termination or low-voltage logic ICs.
Portable Audio Players
Low noise and stable output support clean power for audio DACs and headphone amplifiers.
- Q: What is the output voltage?
- A: The fixed output voltage is 1.8V.
- Q: What is the maximum output current?
- A: It can provide up to 300mA.
- Q: What is the dropout voltage?
- A: The typical dropout voltage is a low 0.23V at 300mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 300 µA.
- Q: What package is available?
- A: It is available in a standard SOT-23-3L package.
- Q: What is the PSRR?
- A: PSRR is 55dB at 1kHz.
RT9166-18GVL.pdf
- Q: What is the output voltage?
- A: The fixed output voltage is 1.8V.
- Q: What is the maximum output current?
- A: It can provide up to 300mA.
- Q: What is the dropout voltage?
- A: The typical dropout voltage is a low 0.23V at 300mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 300 µA.
- Q: What package is available?
- A: It is available in a standard SOT-23-3L package.
- Q: What is the PSRR?
- A: PSRR is 55dB at 1kHz.
