Introducing the LD3985M47R Low Drop Voltage Regulator

The LD3985M47R is a state-of-the-art low drop voltage regulator designed and manufactured by STMicroelectronics, a global leader in semiconductor solutions. This device is engineered to deliver high-performance power regulation with minimal voltage drop, making it an ideal solution for battery-powered applications where efficiency is paramount.

Key Features

• Output Voltage: The LD3985M47R provides a stable output voltage of 4.7V, which is crucial for consistent operation of sensitive electronic components.
• Low Dropout Voltage: With its low dropout performance, this voltage regulator ensures efficient operation even when the input voltage is very close to the output voltage, thus preserving battery life.
• Current Capability: It offers an output current up to 150 mA, catering to a wide range of low-power applications.
• Low Quiescent Current: The quiescent current is as low as 500 nA in shutdown mode, which significantly reduces power consumption when the device is in standby.
• High PSRR: The high Power Supply Rejection Ratio (PSRR) of 75 dB at low frequencies minimizes the impact of supply voltage variations on the output voltage.
• Temperature Range: This regulator operates over a wide temperature range, making it suitable for various industrial and consumer applications.

Applications

The LD3985M47R is highly versatile and can be used in a plethora of devices such as:

• Mobile phones and PDAs
• Portable media players
• Wireless headsets and earphones
• Battery-powered sensors
• Microcontroller power supply

Package Information

STMicroelectronics has packaged the LD3985M47R in a small SOT-23-5 package, which is ideal for space-constrained applications. The compact footprint allows for easy integration into various circuit designs without compromising performance.

Quality and Reliability

As with all STMicroelectronics products, the LD3985M47R is manufactured to the highest quality standards, ensuring reliability and performance in the most demanding conditions. Customers can rely on this voltage regulator for consistent operation and long service life.

For detailed technical specifications, application notes, and support resources, visit the STMicroelectronics website or contact their support team.