The LD3985G25R from STMicroelectronics is a high-performance, low-dropout (LDO) voltage regulator designed to provide a stable and clean power supply. This component is particularly suitable for battery-powered devices, where power efficiency is crucial. With a fixed output voltage of 2.5V, it caters to a wide range of applications in the consumer, automotive, and industrial sectors.

Key Features

• Low Dropout Voltage: The LD3985G25R boasts an extremely low dropout voltage, ensuring efficient operation even when the input voltage is very close to the output voltage. This feature makes it ideal for scenarios where battery life is paramount.
• High Output Accuracy: With a precision output voltage tolerance of ±1%, this LDO provides consistent performance, which is essential for sensitive electronic circuits.
• Low Quiescent Current: The device's quiescent current is as low as 500 µA, contributing to the overall energy efficiency of the end application.
• Stable with Low ESR Ceramic Capacitors: The LD3985G25R is designed to be stable with ceramic output capacitors, which are known for their low equivalent series resistance (ESR). This stability is beneficial for applications requiring a compact design and high reliability.
• Thermal Shutdown and Short-Circuit Protection: Safety features include thermal shutdown to prevent overheating and short-circuit protection to safeguard the device and the application from potential damage caused by circuit malfunctions.

Applications

The LD3985G25R is versatile and can be used in various applications, including:

• Mobile phones and PDAs
• Portable media players
• Wireless LAN devices
• GPS receivers
• Other battery-operated devices

Package Information

The LD3985G25R is available in a small SOT-23-5 package, making it suitable for space-constrained applications. Its compact size, combined with its low noise and high power supply rejection ratio (PSRR), ensures a high-quality power supply without compromising on space or performance.