Richtek USA Inc. RT9073A-25GQZ
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.58 | $0.58 |
| 15+ | $0.56 | $8.40 |
| 25+ | $0.55 | $13.75 |
| 50+ | $0.52 | $26.00 |
| 100+ | $0.46 | $46.00 |
| 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) | 2.5V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.6V @ 250mA |
| Current - Output | 250mA |
| Current - Quiescent (Iq) | 3 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 Richtek RT9073A-25GQZ is a fixed 2.5V LDO regulator offering 250mA output with an ultra-low 3 µA quiescent current. Its 0.6V dropout at full load and 75dB PSRR at 1kHz deliver clean, efficient power. The 4-ZQFN (1x1mm) package is ideal for space-constrained, battery-powered applications.
- Ultra-Low IQ: 3 µA quiescent current dramatically extends battery life in standby.
- High Output Current: 250mA supports a wide range of loads.
- Excellent PSRR: 75dB at 1kHz filters noise for sensitive electronics.
- Minimal Footprint: 1x1mm package enables ultra-compact designs.
Ultra-Low-Power Wearables
The 3 µA quiescent current is ideal for always-on devices like smartwatches and fitness bands, maximizing battery runtime.
Bluetooth Low Energy Modules
250mA output supports BLE SoCs during transmit bursts, while low IQ maintains efficiency in sleep modes.
Portable Medical Monitors
Stable 2.5V rail with 75dB PSRR at 1kHz ensures reliable operation for glucose meters and pulse oximeters.
Energy Harvesting Systems
Low dropout of 0.6V allows regulation from weak energy sources like small solar cells or thermoelectric generators.
Compact Sensor Nodes
The 1x1mm package fits densely populated PCBs in environmental monitoring and smart agriculture.
Battery-Powered Remote Controls
Low IQ and small size make it perfect for low-duty-cycle devices requiring long shelf life.
- Q: What is the output voltage?
- A: Fixed 2.5V output.
- Q: What is the maximum current?
- A: 250mA.
- Q: What is the input voltage range?
- A: Not specified in the provided data.
- Q: What is the dropout voltage?
- A: 0.6V at 250mA load.
- Q: What is the quiescent current?
- A: Ultra-low 3 µA.
- Q: What package is it?
- A: 4-ZQFN (1x1mm).
- Q: What is the output voltage?
- A: Fixed 2.5V output.
- Q: What is the maximum current?
- A: 250mA.
- Q: What is the input voltage range?
- A: Not specified in the provided data.
- Q: What is the dropout voltage?
- A: 0.6V at 250mA load.
- Q: What is the quiescent current?
- A: Ultra-low 3 µA.
- Q: What package is it?
- A: 4-ZQFN (1x1mm).

RT9073A-25GQZ.pdf