The LP38858S-0.8 is a high-performance, low-dropout (LDO) linear voltage regulator from Texas Instruments, designed to deliver a fixed output voltage of 0.8V with an input voltage range from 1.7V to 5.5V. This regulator offers an excellent solution for space-constrained applications requiring a high level of power efficiency and thermal performance.

Key Features

• Output Voltage: Fixed 0.8V output, suitable for low-voltage operations in modern digital circuits.
• Current Capability: Capable of delivering up to 1A of continuous output current, making it ideal for powering a wide range of ICs and embedded systems.
• Low Dropout: Minimal voltage drop between the input and output, ensuring efficient operation even when the input voltage is close to the output voltage.
• High Accuracy: Maintains tight regulation with a precision output voltage tolerance of ±1%, providing stable power for sensitive loads.
• Thermal Protection: Integrated thermal shutdown and overcurrent protection features safeguard the device and the load from damage due to overheating and overloading.
• Low Quiescent Current: The LP38858S-0.8 boasts a low ground pin current, which contributes to the overall power efficiency of the application.
• Stable with Low ESR Capacitors: Stable with ceramic output capacitors as low as 10μF, offering flexibility in design and reducing overall solution size.

Applications

This LDO regulator is suitable for a broad range of applications, including but not limited to:

• Portable and battery-powered devices
• FPGAs, DSPs, and microprocessors
• Wireless communication systems
• Automotive electronics
• Power management for sensitive analog circuits

Package and Availability

The LP38858S-0.8 is available in a compact TO-263 package, which is designed to optimize board space and to facilitate easier mounting in a variety of PCB layouts. Check with Texas Instruments or authorized distributors for pricing and availability.

For detailed technical specifications, application notes, and support resources, please refer to the official Texas Instruments product page and datasheets.