Richtek USA Inc. RT9198-33GV
| 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) | 0.33V @ 300mA |
| Current - Output | 300mA |
| Current - Quiescent (Iq) | 130 μA |
| Current - Supply (Max) | - |
| PSRR | 60dB ~ 30dB (100Hz ~ 10kHz) |
| Control Features | Enable |
| Protection Features | Over Current, Over Temperature |
| Operating Temperature | -40°C ~ 125°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | TO-236-3, SC-59, SOT-23-3 |
| Supplier Device Package | SOT-23-3 |
| ROHS |
The RT9198-33GV is a fixed 3.3V LDO regulator from Richtek, offering 300mA output current with a low dropout of 0.33V. Its 130 μA quiescent current makes it highly efficient for battery-powered applications. The device provides good PSRR (60dB at 100Hz) for noise rejection. The compact SOT-23-3 package is ideal for minimal designs.
- Minimalist Packaging: SOT-23-3 is one of the smallest packages, perfect for ultra-compact designs.
- Energy Efficient: 130 μA quiescent current reduces power waste in standby mode.
- Stable Output: 60dB PSRR at 100Hz filters supply noise for sensitive loads.
- Easy Integration: Simple 3-pin configuration simplifies PCB layout and reduces BOM complexity.
Simple Power Regulation for Sensors
The SOT-23-3 package with just three pins is perfect for basic sensor modules needing a clean 3.3V rail from a 5V source.
Battery-Powered Remote Controls
Low quiescent current (130 μA) ensures minimal battery drain during standby, extending the life of remote controls and key fobs.
LED Driver Bias Supplies
Provides a stable bias voltage for LED driver ICs, ensuring consistent brightness and color accuracy in display backlights.
Low-Power Logic Circuits
Ideal for powering simple logic gates and level shifters that require a regulated 3.3V supply with minimal noise.
Portable Instrumentation
In handheld multimeters and thermometers, the low dropout allows operation from nearly discharged batteries, maximizing useful life.
Reference Voltage for Comparators
Can be used as a local reference for comparators and simple analog circuits where precision is not critical but stability is required.
- Q: What is the output voltage of the RT9198-33GV?
- A: The fixed output is 3.3V.
- Q: What is the maximum output current?
- A: This LDO can provide up to 300mA.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; please consult the datasheet.
- Q: What is the dropout voltage?
- A: Dropout voltage is 0.33V at 300mA.
- Q: What is the quiescent current?
- A: Quiescent current is 130 μA.
- Q: What package is this?
- A: It comes in the SOT-23-3 package.
- Q: What is the output voltage of the RT9198-33GV?
- A: The fixed output is 3.3V.
- Q: What is the maximum output current?
- A: This LDO can provide up to 300mA.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; please consult the datasheet.
- Q: What is the dropout voltage?
- A: Dropout voltage is 0.33V at 300mA.
- Q: What is the quiescent current?
- A: Quiescent current is 130 μA.
- Q: What package is this?
- A: It comes in the SOT-23-3 package.

RT9198-33GV.pdf