Richtek USA Inc. RT9198-18GBR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.73 | $0.73 |
| 15+ | $0.71 | $10.65 |
| 25+ | $0.69 | $17.25 |
| 50+ | $0.65 | $32.50 |
| 100+ | $0.58 | $58.00 |
| N+ | $0.12 | Price Inquiry |
Request Quote / Inquiry
| Product attributes | Property Value |
| Manufacturer | Richtek USA Inc. |
| Product Series | |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 5.5V |
| Voltage - Output (Min/Fixed) | 1.8V |
| 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 RT9198-18GBR from Richtek is a low dropout linear regulator delivering a fixed 1.8V output with 300mA current capability. Its low dropout of 0.33V at full load and high PSRR (60dB at 100Hz) ensure stable, noise-free power for portable electronics. The SOT-23-5R package and 130 µA quiescent current make it an excellent choice for battery-powered applications.
- High PSRR: 60dB at 100Hz rejects low-frequency noise for clean power delivery.
- Low Dropout: 0.33V at 300mA maximizes headroom in battery-operated systems.
- Low Quiescent Current: 130 µA extends battery life in portable devices.
- Compact SOT-23-5R: Small footprint ideal for space-constrained PCB designs.
Smartphone Power Management
With 60dB PSRR at 100Hz, the RT9198-18GBR effectively filters low-frequency noise for clean 1.8V rails in mobile devices.
Bluetooth Modules
Low dropout of 0.33V at 300mA supports Bluetooth SoCs operating from a 2V battery, maximizing efficiency.
Digital Cameras
Stable 1.8V output powers image processors and memory interfaces, ensuring reliable operation during high-speed capture.
Portable Gaming Consoles
300mA capability and low quiescent current balance performance and battery life in handheld gaming systems.
IoT Edge Devices
Compact SOT-23-5R package and clean output make it suitable for sensors and microcontrollers in smart home devices.
- Q: What is the output voltage of the RT9198-18GBR?
- A: It provides a fixed 1.8V output.
- Q: What is the maximum output current?
- A: The maximum output current is 300mA.
- Q: What is the input voltage range?
- A: The input voltage is 1.8V (minimum).
- Q: What is the dropout voltage?
- A: Dropout voltage is 0.33V at 300mA load.
- Q: What is the quiescent current?
- A: Quiescent current is 130 µA.
- Q: What is the PSRR performance?
- A: PSRR is 60dB at 100Hz and 30dB at 10kHz.
RT9198-18GBR.pdf
- Q: What is the output voltage of the RT9198-18GBR?
- A: It provides a fixed 1.8V output.
- Q: What is the maximum output current?
- A: The maximum output current is 300mA.
- Q: What is the input voltage range?
- A: The input voltage is 1.8V (minimum).
- Q: What is the dropout voltage?
- A: Dropout voltage is 0.33V at 300mA load.
- Q: What is the quiescent current?
- A: Quiescent current is 130 µA.
- Q: What is the PSRR performance?
- A: PSRR is 60dB at 100Hz and 30dB at 10kHz.
