Richtek USA Inc. RT9166-33GV
| 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) | 3.3V |
| 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 RT9166-33GV is a fixed 3.3V low dropout regulator from Richtek, delivering up to 300mA. It offers a typical dropout of 0.23V at full load and a low quiescent current of 300 μA. Housed in a compact SOT-23-3 package, it is ideal for space-limited, battery-powered applications.
- Ultra-Compact SOT-23-3: Saves PCB space for miniaturized designs.
- Low Dropout: 0.23V typical at 300mA extends battery life.
- Low Quiescent Current: 300 μA reduces idle power consumption.
- Stable 3.3V Output: Suitable for standard logic and mixed-signal circuits.
Portable Consumer Electronics
The 3.3V output and 300mA capability make it perfect for powering microcontrollers and sensors in handheld devices.
Low-Power IoT Nodes
With 300 μA quiescent current, it minimizes standby power in battery-operated IoT sensors and trackers.
3.3V Digital Logic
Provides a clean, stable 3.3V rail for logic ICs, with 55dB PSRR at 1kHz to filter supply noise.
Space-Constrained Designs
The tiny SOT-23-3 package fits into compact PCBs for wearables and modules.
Battery Backup Circuits
Low dropout of 0.23V allows operation from nearly discharged batteries, maximizing usable capacity.
Reference Voltage Source
Stable output can serve as a reference for ADC circuits in measurement equipment.
- Q: What is the output voltage of the RT9166-33GV?
- A: The fixed output voltage is 3.3V.
- 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: Typical dropout is 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 comes in a SOT-23-3 package.
- Q: What is the output voltage of the RT9166-33GV?
- A: The fixed output voltage is 3.3V.
- 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: Typical dropout is 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 comes in a SOT-23-3 package.

RT9166-33GV.pdf