Richtek USA Inc. RT9198-4GGBR
| 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-23-5R |
| ROHS |  |
The RT9198-4GGBR is a fixed 4.75V low dropout linear regulator from Richtek, capable of delivering 300mA. It features a low dropout voltage of 0.33V at full load and a quiescent current of only 130 μA, making it highly efficient for battery-powered applications. With excellent PSRR (60dB to 30dB from 100Hz to 10kHz), it ensures clean power for noise-sensitive circuits. The SOT-23-5R package offers a compact solution for space-constrained designs.
- High Efficiency: Low 130 μA quiescent current extends battery life in portable devices.
- Excellent Noise Rejection: PSRR up to 60dB filters supply noise for sensitive analog loads.
- Low Dropout: 0.33V dropout enables operation with minimal input-output voltage difference.
- Compact SOT-23-5R: Small footprint ideal for dense PCB layouts.
4.75V Rail for Sensor Systems
Provides a stable 4.75V supply for bridge sensors, op-amps, and data converters that require a reference rail above standard 3.3V, with low noise for accurate measurements.
Battery-Powered Industrial Monitors
With 300mA output and low quiescent current, it powers wireless industrial sensors and monitors, maintaining efficiency during sleep modes.
Audio Equipment Bias Supplies
The high PSRR reduces hum and noise, making it suitable for biasing audio preamplifiers and headphone amplifiers in portable audio gear.
Automotive Interior Electronics
Stable 4.75V output for dashboard displays, infotainment controllers, and interior lighting modules, with robust noise rejection from vehicle power lines.
Portable Medical Devices
Low dropout and clean output support battery-operated glucose meters, pulse oximeters, and wearable health monitors requiring reliable power.
FPGA and CPLD Auxiliary Rails
Provides a dedicated 4.75V rail for I/O banks or auxiliary circuits in programmable logic devices, ensuring stable logic levels.
- Q: What is the output voltage of the RT9198-4GGBR?
- A: The RT9198-4GGBR has a fixed output voltage of 4.75V.
- Q: What is the maximum output current?
- A: The maximum output current is 300mA.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.33V at 300mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 130 μA.
- Q: What is the PSRR performance?
- A: PSRR is 60dB to 30dB across 100Hz to 10kHz.
- Q: What package is available?
- A: It comes in the SOT-23-5R package.
RT9198-4GGBR.pdf
- Q: What is the output voltage of the RT9198-4GGBR?
- A: The RT9198-4GGBR has a fixed output voltage of 4.75V.
- Q: What is the maximum output current?
- A: The maximum output current is 300mA.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.33V at 300mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 130 μA.
- Q: What is the PSRR performance?
- A: PSRR is 60dB to 30dB across 100Hz to 10kHz.
- Q: What package is available?
- A: It comes in the SOT-23-5R package.
