Richtek USA Inc. RT9166A-33GX
| 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) | 0.58V @ 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-243AA |
| Supplier Device Package | SOT-89-3 |
| ROHS |  |
The RT9166A-33GX is a fixed 3.3V low dropout linear regulator from Richtek, capable of delivering up to 600mA of output current. It features a typical dropout voltage of just 0.58V at full load, enabling efficient operation from a variety of input sources. With a low quiescent current of 300 μA and a power supply rejection ratio of 55dB at 1kHz, this regulator is well-suited for battery-powered and noise-sensitive applications. Housed in a compact SOT-89-3 package, it offers a reliable and space-saving power management solution.
- High Efficiency with Low Dropout: The 0.58V typical dropout voltage at 600mA allows operation from input voltages close to the output, reducing power dissipation and improving system efficiency.
- Extended Battery Life: The low 300 μA quiescent current minimizes current draw during standby, making it ideal for battery-powered devices.
- Clean Power Delivery: With 55dB PSRR at 1kHz, it effectively filters out power supply noise, ensuring stable operation for sensitive analog and digital circuits.
- Robust Current Capability: The 600mA output current rating provides ample headroom for powering multiple ICs or modules from a single regulator.
Powering Microcontrollers and Digital ICs
The fixed 3.3V output is ideal for powering 3.3V logic, microcontrollers, and digital signal processors that require a stable and clean supply rail. The 600mA current capability supports a wide range of digital loads.
Battery-Powered Portable Devices
With a low quiescent current of 300 μA, this LDO helps extend battery life in portable electronics such as handheld instruments, remote controls, and wearable devices, where minimizing standby power is critical.
Noise-Sensitive Analog Circuits
The 55dB PSRR at 1kHz helps attenuate power supply noise, making it suitable for powering analog-to-digital converters (ADCs), operational amplifiers, and sensor signal conditioning circuits.
Post-Regulation for Switching Converters
Use the RT9166A-33GX after a DC-DC buck converter to provide a low-noise, precisely regulated 3.3V rail, reducing ripple and switching noise for sensitive loads.
Industrial Control Systems
The SOT-89-3 package offers good thermal performance for industrial applications requiring reliable operation. The 600mA output can power sensors, interface ICs, and control logic in factory automation equipment.
Communication Modules
Power Wi-Fi, Bluetooth, and other communication modules that require a stable 3.3V supply. The low dropout voltage ensures efficient operation even when the input voltage is close to the output.
- Q: What is the fixed output voltage of the RT9166A-33GX?
- A: The RT9166A-33GX provides a fixed 3.3V output.
- Q: What is the maximum output current?
- A: It can deliver up to 600mA of output current.
- Q: What is the input voltage range for this LDO?
- A: The input voltage range is not specified in the provided data; please refer to the official datasheet for complete specifications.
- Q: What is the dropout voltage?
- A: The typical dropout voltage is 0.58V at a 600mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 300 μA.
- Q: What package is the RT9166A-33GX available in?
- A: It comes in a SOT-89-3 package.
RT9166A-33GX.pdf
- Q: What is the fixed output voltage of the RT9166A-33GX?
- A: The RT9166A-33GX provides a fixed 3.3V output.
- Q: What is the maximum output current?
- A: It can deliver up to 600mA of output current.
- Q: What is the input voltage range for this LDO?
- A: The input voltage range is not specified in the provided data; please refer to the official datasheet for complete specifications.
- Q: What is the dropout voltage?
- A: The typical dropout voltage is 0.58V at a 600mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 300 μA.
- Q: What package is the RT9166A-33GX available in?
- A: It comes in a SOT-89-3 package.
