Richtek USA Inc. RT9078N-12GJ5
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.93 | $0.93 |
| 15+ | $0.90 | $13.50 |
| 25+ | $0.88 | $22.00 |
| 50+ | $0.83 | $41.50 |
| 100+ | $0.74 | $74.00 |
| N+ | $0.15 | 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 | Adjustable |
| 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 | SOT-23-5 Thin, TSOT-23-5 |
| Supplier Device Package | TSOT-23-5 |
The RT9078N-12GJ5 from Richtek is a fixed 1.2V low dropout linear regulator capable of delivering 300mA. With a quiescent current of just 4 µA and excellent 75dB PSRR at 1kHz, it provides clean, efficient power for modern low-voltage digital circuits. The dropout voltage is 0.57V at full load, making it suitable for 1.8V input rails. Packaged in a compact TSOT-23-5, this regulator is ideal for space-constrained, battery-powered designs.
- Ultra-Low Quiescent Current: 4 µA extends battery life in always-on IoT devices.
- High PSRR: 75dB at 1kHz effectively filters switching regulator noise.
- High Current Density: 300mA in a tiny TSOT-23-5 package saves board space.
- Low Dropout: 0.57V at 300mA enables efficient operation from 1.8V rails.
FPGA Core Power
The 1.2V output at 300mA powers low-voltage FPGA cores, with 75dB PSRR at 1kHz filtering switching regulator noise.
Wireless Sensor Nodes
4 µA quiescent current extends battery life in Zigbee and LoRa sensors, while 300mA supports burst transmission currents.
Portable Audio Players
Clean 1.2V rail for DSP and codec circuits, with high PSRR preventing noise from battery charging circuits.
Smart Home Controllers
Stable 1.2V for microcontroller cores in smart thermostats and lighting controllers, with low standby power for always-on operation.
Medical Wearables
Compact TSOT-23-5 package and low quiescent current enable small, long-lasting glucose monitors and heart rate sensors.
IoT Edge Devices
Provides regulated 1.2V for edge AI processors, with 300mA capacity for compute-intensive tasks and low idle power.
- Q: What is the output voltage?
- A: The RT9078N-12GJ5 provides a fixed output voltage of 1.2V.
- Q: What is the maximum output current?
- A: It can deliver up to 300mA of continuous output current.
- Q: What is the input voltage range?
- A: The input voltage is 1.2V, designed for low-voltage digital rails.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.57V at 300mA, allowing operation from a 1.77V source.
- Q: What is the quiescent current?
- A: The quiescent current is only 4 µA, ideal for battery-powered applications.
- Q: What is the PSRR?
- A: It offers 75dB ripple rejection at 1kHz, excellent for switching regulator noise filtering.
RT9078N-12GJ5.pdf
- Q: What is the output voltage?
- A: The RT9078N-12GJ5 provides a fixed output voltage of 1.2V.
- Q: What is the maximum output current?
- A: It can deliver up to 300mA of continuous output current.
- Q: What is the input voltage range?
- A: The input voltage is 1.2V, designed for low-voltage digital rails.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.57V at 300mA, allowing operation from a 1.77V source.
- Q: What is the quiescent current?
- A: The quiescent current is only 4 µA, ideal for battery-powered applications.
- Q: What is the PSRR?
- A: It offers 75dB ripple rejection at 1kHz, excellent for switching regulator noise filtering.
