Richtek USA Inc. RT9198-15GBR
| 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) | 1.5V |
| 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 | - |
| Protection Features | Over Current, Over Temperature |
| Operating Temperature | -40°C ~ 125°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | SC-74A, SOT-753 |
| Supplier Device Package | SOT-23-5R |
| ROHS |
The RT9198-15GBR is a fixed 1.5V low dropout linear regulator from Richtek, delivering up to 300mA with a low dropout voltage of 0.33V. Its 130 μA quiescent current and excellent PSRR make it ideal for battery-operated and noise-sensitive applications. Housed in a compact SOT-23-5R package, this LDO offers a simple, reliable power solution.
- Extended Battery Life: Ultra-low 130 μA quiescent current minimizes power draw in standby mode.
- Clean Output: High PSRR (60dB at 100Hz) suppresses input ripple for noise-sensitive loads.
- High Efficiency at Low Dropout: 0.33V dropout at 300mA allows operation from tightly regulated input rails.
- Compact Footprint: SOT-23-5R package saves board space for portable designs.
Portable Battery-Powered Devices
The low 130 μA quiescent current extends battery life in wearables, IoT sensors, and handheld instruments where standby power is critical.
RF and Wireless Modules
With PSRR of 60dB at 100Hz, the RT9198-15GBR effectively filters supply noise for sensitive RF transceivers and Bluetooth modules, ensuring stable 1.5V operation.
Microcontroller Power Supplies
Provide clean, regulated 1.5V to low-voltage MCUs and DSPs, with the 300mA capability supporting core logic and peripheral loads.
Audio Codec and ADC Reference
The high PSRR and low dropout characteristics make it suitable for powering audio codecs and ADC analog sections, minimizing noise coupling from the main supply.
Space-Constrained PCBs
The compact SOT-23-5R package allows placement near load points, reducing trace inductance and improving transient response in dense designs.
- Q: What is the output voltage of the RT9198-15GBR?
- A: The RT9198-15GBR provides a fixed output voltage of 1.5V.
- Q: What is the maximum output current?
- A: This LDO can deliver up to 300mA of continuous output current.
- Q: What is the input voltage range?
- 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 dropout voltage is 0.33V at a 300mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 130 μA.
- Q: What package is available?
- A: This model comes in the SOT-23-5R package.
- Q: What is the output voltage of the RT9198-15GBR?
- A: The RT9198-15GBR provides a fixed output voltage of 1.5V.
- Q: What is the maximum output current?
- A: This LDO can deliver up to 300mA of continuous output current.
- Q: What is the input voltage range?
- 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 dropout voltage is 0.33V at a 300mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 130 μA.
- Q: What package is available?
- A: This model comes in the SOT-23-5R package.

RT9198-15GBR.pdf