Richtek USA Inc. RT9198-33GY
| 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) | 3.3V |
| 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-82 |
| Supplier Device Package | SC-82 |
| ROHS |  |
The RT9198-33GY from Richtek is a fixed 3.3V low dropout linear regulator delivering up to 300mA of output current. With a low dropout voltage of 0.33V at full load and a quiescent current of just 130 μA, it balances efficiency and performance for battery-operated systems. Its high PSRR (60dB to 30dB from 100Hz to 10kHz) ensures clean, stable power for noise-sensitive analog and RF circuits. Housed in a compact SC-82 package, this LDO is an excellent choice for space-constrained portable electronics.
- Extended Battery Life: Ultra-low 130 μA quiescent current minimizes standby drain, ideal for portable and always-on applications.
- Clean Output Power: High PSRR (60dB–30dB) effectively filters supply noise, protecting sensitive analog and RF loads.
- Low Dropout: 0.33V dropout at 300mA allows operation with minimal headroom, improving efficiency in low-voltage systems.
- Compact Footprint: SC-82 package saves PCB space, enabling miniaturized product designs.
Portable Battery-Powered Devices
With a low quiescent current of 130 μA and a 300mA output, the RT9198-33GY is ideal for extending battery life in wearables, IoT sensors, and handheld instruments where power efficiency is critical.
Noise-Sensitive Analog Circuits
The PSRR of 60dB to 30dB (100Hz to 10kHz) helps suppress power supply noise, making it suitable for powering precision analog front-ends, audio codecs, and sensor signal conditioning circuits.
RF and Wireless Modules
Stable 3.3V rail with good high-frequency noise rejection supports Bluetooth, Zigbee, and sub-GHz transceivers, ensuring clean power for RF oscillators and mixers.
Microcontroller Power Supply
Provides a regulated 3.3V supply for MCUs and digital logic, with fast transient response to handle dynamic current loads during processing and communication bursts.
Space-Constrained PCBs
The compact SC-82 package (SOT-23-5 style) minimizes board footprint, enabling dense layouts in compact consumer electronics and medical patches.
Always-On Power Domains
Ultra-low quiescent current makes it perfect for always-on domains in smart home devices, keeping standby power consumption minimal while maintaining a stable output.
- Q: What is the fixed output voltage of the RT9198-33GY?
- A: The RT9198-33GY provides a fixed output voltage of 3.3V.
- Q: What is the maximum output current?
- A: The maximum output current is 300mA.
- Q: What is the input voltage range for this regulator?
- A: The input voltage range is not explicitly specified in the technical data; however, the device is designed for 3.3V output with a dropout of 0.33V at 300mA, so input should be above 3.63V for regulation.
- 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 package is the RT9198-33GY available in?
- A: It is available in the SC-82 package.
RT9198-33GY.pdf
- Q: What is the fixed output voltage of the RT9198-33GY?
- A: The RT9198-33GY provides a fixed output voltage of 3.3V.
- Q: What is the maximum output current?
- A: The maximum output current is 300mA.
- Q: What is the input voltage range for this regulator?
- A: The input voltage range is not explicitly specified in the technical data; however, the device is designed for 3.3V output with a dropout of 0.33V at 300mA, so input should be above 3.63V for regulation.
- 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 package is the RT9198-33GY available in?
- A: It is available in the SC-82 package.
