Richtek USA Inc. RT9078-12GQZ
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.55 | $0.55 |
| 15+ | $0.53 | $7.95 |
| 25+ | $0.52 | $13.00 |
| 50+ | $0.49 | $24.50 |
| 100+ | $0.44 | $44.00 |
| N+ | $0.09 | 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) | 1.2V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.57V @ 300mA |
| Current - Output | 300mA |
| 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 | 4-XDFN Exposed Pad |
| Supplier Device Package | 4-ZQFN (1x1) |
| ROHS |  |
The RT9078-12GQZ from Richtek is a high-performance low dropout linear regulator delivering a fixed 1.2V output. With a maximum current of 300mA and an ultra-low quiescent current of just 4µA, it is ideal for battery-powered and energy-efficient applications. The device features a low dropout voltage of 0.57V at full load and excellent PSRR of 75dB at 1kHz, ensuring clean and stable power. Housed in a compact 4-ZQFN (1x1mm) package, it is perfect for space-constrained designs.
- Extended Battery Life: Ultra-low 4µA quiescent current minimizes standby power consumption.
- Compact Footprint: 1x1mm ZQFN package saves PCB space for miniaturized devices.
- Clean Output: 75dB PSRR at 1kHz suppresses input noise for sensitive circuits.
- High Efficiency: Low 0.57V dropout voltage maintains regulation even with low input margins.
Battery-Powered IoT Sensors
The 4µA quiescent current extends battery life in always-on sensor nodes, while the 1.2V output suits low-power MCUs.
Wearable Devices
The 1x1mm ZQFN package fits space-constrained wearables, providing stable 1.2V rail for processors and sensors.
Portable Medical Monitors
High PSRR of 75dB at 1kHz rejects noise from switching converters, ensuring clean power for sensitive analog front-ends.
Wireless Modules
Stable 1.2V supply for RF transceivers, with low dropout maintaining regulation during battery discharge.
Energy Harvesting Systems
Ultra-low quiescent current preserves harvested energy, enabling operation from micro-power sources.
Smart Home Controllers
Reliable 1.2V rail for always-on hub controllers, minimizing power waste in standby mode.
- Q: What is the output voltage of the RT9078-12GQZ?
- A: The fixed output voltage is 1.2V.
- 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 from 1.2V up to 5.5V (typical LDO operation).
- Q: What is the dropout voltage?
- A: Dropout voltage is 0.57V at 300mA load.
- Q: What is the quiescent current?
- A: Ultra-low quiescent current of only 4µA.
- Q: What package is available?
- A: Available in a compact 4-ZQFN (1x1mm) package.
RT9078-12GQZ.pdf
- Q: What is the output voltage of the RT9078-12GQZ?
- A: The fixed output voltage is 1.2V.
- 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 from 1.2V up to 5.5V (typical LDO operation).
- Q: What is the dropout voltage?
- A: Dropout voltage is 0.57V at 300mA load.
- Q: What is the quiescent current?
- A: Ultra-low quiescent current of only 4µA.
- Q: What package is available?
- A: Available in a compact 4-ZQFN (1x1mm) package.
