Richtek USA Inc. RT9198-50GB
| 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) | 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-23-5 |
| ROHS |
The RT9198-50GB is a fixed 5V LDO regulator from Richtek, delivering 300mA with a low dropout of 0.33V. Its 130 μA quiescent current is ideal for battery-operated and USB-powered devices. The device offers excellent PSRR (60dB at 100Hz) for noise-sensitive applications. Packaged in SOT-23-5, it provides a compact power solution.
- Standard 5V Output: Directly compatible with common logic and analog circuits.
- Low Dropout: 0.33V dropout ensures stable 5V even from 5.3V input sources.
- Low Power Consumption: 130 μA quiescent current extends battery life in portable devices.
- Excellent Ripple Rejection: 60dB PSRR at 100Hz filters supply noise for clean output.
5V Logic and Peripheral Power
Provides a clean, regulated 5V rail for microcontrollers, sensors, and peripheral ICs in mixed-voltage systems.
USB-Powered Devices
Ideal for devices powered from USB 5V bus, offering low dropout to maintain 5V output even with cable losses.
Audio Amplifier Bias
Low noise and high PSRR make it suitable for powering op-amps and audio codecs requiring a 5V supply.
Industrial Sensor Interfaces
Stable 5V output for industrial sensors and transmitters operating in noisy factory environments.
Battery-Powered 5V Systems
For devices using 2-3 Li-ion cells or 6V adapters, the low dropout ensures efficient 5V regulation.
FPGA I/O Banks
Provides a dedicated 5V rail for legacy I/O standards in FPGA and CPLD designs.
- Q: What is the output voltage of the RT9198-50GB?
- A: The fixed output voltage is 5V.
- Q: What is the maximum output current?
- A: This LDO can supply up to 300mA.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; please check 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-23-5 package.
- Q: What is the output voltage of the RT9198-50GB?
- A: The fixed output voltage is 5V.
- Q: What is the maximum output current?
- A: This LDO can supply up to 300mA.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; please check 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-23-5 package.

RT9198-50GB.pdf