STMicroelectronics L99VR03 Linear Voltage Regulators

Introduction

The STMicroelectronics L99VR03 Linear Voltage Regulator is a high-performance component designed for standby microprocessor control-unit systems, particularly in automotive applications. With its ability to provide stable voltage output while consuming minimal power, it is an ideal choice for various electronic devices requiring efficient power management.

Part Description

The L99VR03 is a low-dropout (LDO) voltage regulator that can deliver up to 300mA of load current. It operates with an input voltage range of up to 40V and is available in two output voltage options: 3.3V and 5V. This regulator is designed to maintain high output voltage accuracy (±2%) across a wide temperature range and under varying load conditions. It features low quiescent current consumption, making it suitable for battery-powered applications. Additionally, the L99VR03 includes built-in protection mechanisms such as thermal shutdown, short-circuit current limitation, and undervoltage lockout (UVLO).

Applications

• Automotive microcontroller power supplies
• Body control modules
• Telematics control units
• Automotive head units
• Headlight control systems

Industries

• Automotive
• Consumer Electronics
• Industrial Automation
• Telecommunications
• Medical Devices

Usage Ideas

1. Automotive Control Systems: Integrate the L99VR03 into a body control module to manage power distribution for various automotive functions such as lighting and climate control.
2. Telematics Devices: Use the L99VR03 in telematics control units to ensure stable power supply for GPS and communication modules in vehicles.
3. Battery-Powered Sensors: Design a low-power sensor system for automotive applications that utilizes the L99VR03 to maintain efficient power management while monitoring environmental conditions.

Conclusion

The STMicroelectronics L99VR03 Linear Voltage Regulator is a versatile and efficient component suitable for a wide range of automotive and electronic applications. Its low quiescent current, high output voltage accuracy, and robust protection features make it an excellent choice for designers looking to enhance power management in their projects. Whether for automotive control systems or battery-powered devices, the L99VR03 stands out as a reliable solution for modern electronic designs.