The LD3985M122R is a high-performance, low-dropout voltage regulator (LDO) from the renowned semiconductor manufacturer, STMicroelectronics. Designed to deliver a stable and precise output voltage, this LDO is particularly suited for battery-powered devices and applications where power efficiency is paramount.
Key Features
- Low Dropout Voltage: The LD3985M122R boasts an ultra-low dropout voltage, ensuring efficient operation even when the input voltage is very close to the output voltage.
- High Output Accuracy: With tight output voltage tolerance, this LDO provides a highly accurate output, essential for sensitive electronic circuits.
- Low Quiescent Current: The device's low ground current contributes to minimal power loss, making it ideal for power-sensitive applications.
- Stability with Low ESR Capacitors: The LD3985M122R is stable with ceramic capacitors, which have a low equivalent series resistance (ESR), providing better reliability and performance.
- Thermal Shutdown and Short-Circuit Protection: Built-in safety features protect the device from damage due to overheating and short-circuit conditions.
Applications
The LD3985M122R is versatile and can be used in a variety of applications, including:
- Mobile phones and PDAs
- Portable media players
- Wireless LAN and Bluetooth systems
- GPS receivers
Technical Specifications
| Parameter |
Value |
| Output Voltage |
1.22 V |
| Dropout Voltage |
Typically 120 mV at 150 mA load |
| Maximum Output Current |
150 mA |
| Quiescent Current |
Typically 30 μA |
| Package |
SOT-23 |
For engineers and designers looking for a reliable LDO that can deliver consistent performance with minimal power loss, the LD3985M122R from STMicroelectronics is an excellent choice. Its robust feature set ensures that it can meet the stringent requirements of modern electronic devices.