Richtek USA Inc. RT9166-18PVL
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $94,999.99 | $94,999.99 |
| 15+ | $91,999.99 | $1,379,999.85 |
| 25+ | $89,999.99 | $2,249,999.75 |
| 50+ | $84,999.99 | $4,249,999.50 |
| 100+ | $74,999.99 | $7,499,999.00 |
| N+ | $15,000.00 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Richtek USA Inc. |
| Product Series | |
| Packaging | | |
| Output Configuration | Active |
| Output Type | Positive |
| Number of Regulators | Fixed |
| 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-23-3 |
| ROHS |
The RT9166-18PVL from Richtek is a fixed 1.8V LDO regulator delivering 300mA with a typical dropout of just 0.23V. Its SOT-23-3 package is widely used and easy to integrate. With 300 μA quiescent current and 55dB PSRR, it offers a balanced solution for portable and low-power applications.
- Low Dropout: 0.23V at 300mA maximizes efficiency in battery-powered designs.
- Standard Package: SOT-23-3 is easy to source and assemble.
- Versatile Output: 1.8V is compatible with many digital ICs.
- Reasonable Quiescent Current: 300 μA balances performance and power consumption.
Digital Logic Power Supplies
The 1.8V output is perfect for powering I/O banks and logic cores in microcontrollers and FPGAs, ensuring reliable digital operation.
Portable Consumer Electronics
The SOT-23-3 package and 300mA output make it suitable for MP3 players, e-readers, and handheld gaming devices.
Battery-Powered Instruments
With a low dropout of 0.23V, it efficiently regulates from a 2-cell alkaline battery pack down to 1.8V.
Communication Modules
Provides a stable 1.8V rail for Bluetooth and Zigbee modules, with 55dB PSRR to reduce interference.
LED Driver Bias Supplies
Can bias LED driver ICs that require a precise 1.8V reference, ensuring consistent brightness control.
- Q: What is the output voltage?
- A: The RT9166-18PVL provides a fixed output voltage of 1.8V.
- Q: What is the maximum output current?
- A: It can deliver up to 300mA of output current.
- Q: What is the input voltage range?
- A: The input voltage range is centered around 1.8V; refer to the datasheet for the full range.
- Q: What is the dropout voltage?
- A: Dropout voltage is 0.23V at 300mA (typical).
- Q: What is the quiescent current?
- A: Quiescent current is 300 μA.
- Q: What package is available?
- A: It comes in a standard SOT-23-3 package.
- Q: What is the output voltage?
- A: The RT9166-18PVL provides a fixed output voltage of 1.8V.
- Q: What is the maximum output current?
- A: It can deliver up to 300mA of output current.
- Q: What is the input voltage range?
- A: The input voltage range is centered around 1.8V; refer to the datasheet for the full range.
- Q: What is the dropout voltage?
- A: Dropout voltage is 0.23V at 300mA (typical).
- Q: What is the quiescent current?
- A: Quiescent current is 300 μA.
- Q: What package is available?
- A: It comes in a standard SOT-23-3 package.

RT9166-18PVL.pdf