Richtek USA Inc. RT9166A-18GG
| 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 |
Request Quote / Inquiry
| 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) | 0.58V @ 600mA (Typ) |
| Current - Output | 600mA |
| 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-261-4, TO-261AA |
| Supplier Device Package | SOT-223 |
| ROHS |  |
The Richtek RT9166A-18GG is a fixed 1.8V LDO regulator delivering up to 600mA. It features a low 300μA quiescent current and a typical dropout of 0.58V at full load. With 55dB PSRR at 1kHz, it ensures clean power for sensitive electronics. The SOT-223 package offers robust thermal performance.
- Low Power Consumption: The 300μA quiescent current is ideal for extending battery life in portable devices.
- High Noise Rejection: 55dB PSRR at 1kHz minimizes power supply noise, improving analog performance.
- Thermally Efficient: The SOT-223 package dissipates heat effectively, supporting full 600mA operation.
- Precise Output: Fixed 1.8V output eliminates the need for external resistors, simplifying design.
Microcontroller I/O and Logic Power
The 1.8V output is a standard logic level for many MCUs; this LDO provides a stable 600mA supply for I/O banks and peripherals.
Wireless Connectivity Modules
Wi-Fi and Bluetooth modules often require a 1.8V rail; the low dropout and good PSRR ensure reliable operation even with fluctuating input.
Battery-Powered Consumer Electronics
With 300μA quiescent current, this regulator is perfect for remote controls, smart watches, and other battery-operated devices.
Sensor Signal Conditioning
For analog sensor interfaces, the 55dB PSRR at 1kHz helps maintain signal integrity by rejecting power supply noise.
Automotive Body Electronics
The SOT-223 package and 600mA capability make it suitable for powering control units in automotive body systems.
Test and Measurement Equipment
Provides a clean, stable 1.8V reference rail for ADCs and DACs in benchtop instruments.
- Q: What is the output voltage of the RT9166A-18GG?
- A: The RT9166A-18GG provides a fixed output voltage of 1.8V.
- Q: What is the maximum output current?
- A: This LDO can deliver up to 600mA of output current.
- Q: What is the input voltage range?
- A: The input voltage range is from 1.8V up to a maximum of 5.5V (based on typical LDO specifications).
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 0.58V at a 600mA load.
- Q: What is the quiescent current?
- A: The quiescent current is a low 300μA, helping to preserve battery life.
- Q: What is the PSRR?
- A: The power supply rejection ratio is 55dB at 1kHz, providing good noise filtering.
RT9166A-18GG.pdf
- Q: What is the output voltage of the RT9166A-18GG?
- A: The RT9166A-18GG provides a fixed output voltage of 1.8V.
- Q: What is the maximum output current?
- A: This LDO can deliver up to 600mA of output current.
- Q: What is the input voltage range?
- A: The input voltage range is from 1.8V up to a maximum of 5.5V (based on typical LDO specifications).
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 0.58V at a 600mA load.
- Q: What is the quiescent current?
- A: The quiescent current is a low 300μA, helping to preserve battery life.
- Q: What is the PSRR?
- A: The power supply rejection ratio is 55dB at 1kHz, providing good noise filtering.
