Richtek USA Inc. RT9198-4GGBG
| 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) | 4.75V |
| 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-23-5G |
| ROHS |  |
The RT9198-4GGBG is a fixed 4.75V LDO regulator from Richtek, capable of 300mA output with a low dropout of 0.33V. Its 130 μA quiescent current ensures efficiency in battery and 5V-powered systems. With PSRR of 60dB at 100Hz, it delivers clean power for sensitive applications. The SOT-23-5G package offers a compact solution.
- Precise 4.75V Output: Ideal for applications requiring a voltage between standard 3.3V and 5V rails.
- Low Dropout: 0.33V dropout allows operation from 5V supplies with headroom for noise.
- Low Quiescent Current: 130 μA helps maintain efficiency in always-on systems.
- Good Noise Rejection: 60dB PSRR at 100Hz ensures stable output in noisy environments.
5V to 4.75V Conversion
Ideal for systems with a 5V supply that need a slightly lower, stable 4.75V rail for legacy logic or analog circuits.
Battery Charging Circuits
Provides a regulated 4.75V supply for charging circuitry in portable devices, ensuring consistent charging current.
Precision Analog Front Ends
The 60dB PSRR at 100Hz helps maintain signal integrity in data acquisition systems operating from a 5V bus.
Automotive Sensor Power
In 5V automotive environments, this LDO provides a clean 4.75V rail for sensors, reducing noise from the alternator.
Industrial Control Interfaces
For PLCs and industrial controllers, it offers a stable reference voltage for analog I/O modules.
Test and Measurement Equipment
Provides a low-noise 4.75V source for calibration circuits and precision measurement tools.
- Q: What is the output voltage of the RT9198-4GGBG?
- A: The fixed output voltage is 4.75V.
- Q: What is the maximum output current?
- A: It can deliver up to 300mA.
- Q: What is the input voltage range?
- A: The input voltage range is not explicitly provided; refer to the datasheet for details.
- Q: What is the dropout voltage?
- A: Dropout is 0.33V at 300mA load.
- Q: What is the quiescent current?
- A: Quiescent current is 130 μA.
- Q: What package is available?
- A: This model uses the SOT-23-5G package.
RT9198-4GGBG.pdf
- Q: What is the output voltage of the RT9198-4GGBG?
- A: The fixed output voltage is 4.75V.
- Q: What is the maximum output current?
- A: It can deliver up to 300mA.
- Q: What is the input voltage range?
- A: The input voltage range is not explicitly provided; refer to the datasheet for details.
- Q: What is the dropout voltage?
- A: Dropout is 0.33V at 300mA load.
- Q: What is the quiescent current?
- A: Quiescent current is 130 μA.
- Q: What package is available?
- A: This model uses the SOT-23-5G package.
