Richtek USA Inc. RT9080-18GJ5
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.62 | $0.62 |
| 15+ | $0.60 | $9.00 |
| 25+ | $0.59 | $14.75 |
| 50+ | $0.55 | $27.50 |
| 100+ | $0.49 | $49.00 |
| N+ | $0.10 | Price Inquiry |
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| 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) | 0.83V @ 600mA |
| Current - Output | 600mA |
| Current - Quiescent (Iq) | 4 µA |
| Current - Supply (Max) | - |
| PSRR | 75dB (1kHz) |
| Control Features | Enable |
| Protection Features | Over Current, Over Temperature |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | SOT-23-5 Thin, TSOT-23-5 |
| Supplier Device Package | TSOT-23-5 |
| ROHS |
The RT9080-18GJ5 from Richtek is a low-power LDO regulator delivering a fixed 1.8V output. It supports up to 600mA of load current with a dropout voltage of 0.83V. The ultra-low 4 µA quiescent current makes it excellent for battery-operated devices. With 75dB PSRR at 1kHz, it provides clean power for noise-sensitive applications. Housed in a TSOT-23-5 package, it balances performance and size.
- Ultra-Low Standby Power: 4 µA quiescent current extends battery life in always-on applications.
- High Current Capacity: 600mA output supports power-hungry digital loads.
- Good Noise Rejection: 75dB PSRR at 1kHz ensures stable operation near switching regulators.
- Compact Package: TSOT-23-5 is suitable for space-limited PCB layouts.
FPGA Core Power
600mA output with 1.8V rail is ideal for low-power FPGA cores, providing stable voltage for logic arrays in edge computing devices.
Solid-State Drives (SSDs)
Low 4 µA quiescent current reduces standby power in SSDs, while 600mA supports NAND flash controllers and DRAM buffers.
Set-Top Boxes
75dB PSRR at 1kHz filters switching regulator noise, ensuring clean 1.8V for HDMI and Ethernet PHY circuits.
Network Routers
TSOT-23-5 package and 600mA capability suit compact router designs, powering PHY transceivers and switch ICs.
Battery Management Systems
4 µA quiescent current is ideal for battery monitoring circuits that must remain active for years on a single cell.
Portable Test Equipment
Stable 1.8V output with low dropout supports precision ADC references in handheld multimeters and oscilloscopes.
- Q: What is the output voltage?
- A: Fixed 1.8V output.
- Q: What is the maximum output current?
- A: 600mA maximum output current.
- Q: What is the input voltage range?
- A: Input voltage range is not specified in the provided data; refer to datasheet.
- Q: What is the dropout voltage?
- A: Dropout is 0.83V at 600mA load.
- Q: What is the quiescent current?
- A: Ultra-low quiescent current of 4 µA.
- Q: What package is available?
- A: TSOT-23-5 package.
- Q: What is the output voltage?
- A: Fixed 1.8V output.
- Q: What is the maximum output current?
- A: 600mA maximum output current.
- Q: What is the input voltage range?
- A: Input voltage range is not specified in the provided data; refer to datasheet.
- Q: What is the dropout voltage?
- A: Dropout is 0.83V at 600mA load.
- Q: What is the quiescent current?
- A: Ultra-low quiescent current of 4 µA.
- Q: What package is available?
- A: TSOT-23-5 package.

RT9080-18GJ5.pdf