STMicroelectronics

LD49100PU15RY  

Linear & Switching Voltage Regulators

LD49100PU15RY Description

The LD49100PU15RY is a high-performance linear voltage regulator designed by STMicroelectronics, a leading manufacturer in the semiconductor industry. This regulator is specifically tailored for applications requiring a stable and efficient power supply with minimal quiescent current. The LD49100PU15RY features a fixed output voltage of 1.5V, capable of delivering a continuous output current of up to 1A. It is designed to operate with an input voltage range up to 5.5V, ensuring compatibility with a wide range of power sources.

The regulator boasts a low dropout voltage of 0.4V at 1A, which is crucial for maintaining high efficiency even when the input voltage is close to the output voltage. This feature is particularly beneficial in automotive and portable electronic applications where battery voltage can drop significantly. Additionally, the LD49100PU15RY features a low quiescent current of 50 µA, which helps minimize power consumption during standby or low-load conditions.

LD49100PU15RY Features

• Output Type: Fixed
• Output Voltage: 1.5V
• Input Voltage Range: Up to 5.5V
• Output Current: 1A
• Low Dropout Voltage: 0.4V @ 1A
• Low Quiescent Current: 50 µA
• Supply Current: 300 µA (max)
• Power Supply Rejection Ratio (PSRR): 65dB to 62dB (1kHz to 10kHz)
• Control Features: Enable, Power Good
• Protection Features: Over Current, Over Temperature
• Package Type: Surface Mount, Wettable Flank
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• Compliance: REACH Unaffected, ROHS3 Compliant, Automotive Grade

LD49100PU15RY Applications

The LD49100PU15RY is ideally suited for a variety of applications where efficiency, reliability, and low power consumption are critical. Its automotive grade certification makes it suitable for use in automotive systems, including infotainment, telematics, and advanced driver-assistance systems (ADAS). The low dropout voltage and low quiescent current make it an excellent choice for battery-powered devices and portable electronics, where maintaining battery life is essential.

Other potential applications include industrial control systems, medical devices, and communication equipment. The regulator's ability to handle high current loads while maintaining low power consumption makes it a versatile component for a wide range of electronic designs.

Conclusion of LD49100PU15RY

The LD49100PU15RY from STMicroelectronics stands out as a robust and efficient linear voltage regulator, offering significant advantages over similar models in the market. Its low dropout voltage and low quiescent current make it highly efficient, particularly in applications with varying input voltages and low power requirements. The inclusion of advanced control and protection features ensures reliable operation and enhanced system performance.

With its automotive grade certification and compliance with industry standards such as REACH and ROHS3, the LD49100PU15RY is a reliable choice for engineers and designers looking to integrate a high-performance regulator into their next project. Whether used in automotive electronics, portable devices, or industrial systems, the LD49100PU15RY delivers consistent performance and efficiency, making it an ideal solution for modern electronic designs.

LD49100PU15RY Documents

Download datasheets and manufacturer documentation for LD49100PU15RY