LD29150PTR Adjustable Linear Voltage Regulator 1.5A Output - STMicroelectronics

Advanced Voltage Regulation with LD29150PTR

In modern electronic systems, precision power management is critical for ensuring optimal performance across diverse applications. STMicroelectronics' LD29150PTR adjustable linear voltage regulator emerges as a premier solution for engineers seeking reliable voltage conversion with exceptional stability and protection features. This high-current regulator combines advanced semiconductor technology with robust design principles to deliver consistent power regulation in demanding environments.

Key Technical Advantages

Engineered for versatility, the LD29150PTR offers a wide adjustable output voltage range from 1.23V to 13.3V, making it suitable for both low-voltage digital circuits and higher-voltage analog applications. The device maintains exceptional line and load regulation while operating at its maximum output current capacity of 1.5A. With a dropout voltage of just 0.7V at full load, this regulator preserves efficiency even in low-headroom scenarios.

Comprehensive Protection Architecture

Built with industrial-grade reliability, this linear regulator incorporates multiple protection mechanisms to ensure system longevity. The integrated thermal shutdown circuitry prevents damage from excessive junction temperatures, while the current limiting feature safeguards against output short circuits and overloads. These protective measures make the LD29150PTR particularly well-suited for automotive electronics, industrial control systems, and other mission-critical applications where component failure could have significant consequences.

Package and Performance Optimization

Housed in a thermally-efficient PPAK package (TO-252AD), the regulator combines compact form factor with superior thermal dissipation characteristics. The surface-mount design facilitates automated assembly while maintaining excellent thermal performance through its enhanced pad layout. Operating at quiescent currents as low as 180µA, the device achieves remarkable energy efficiency while maintaining fast transient response times for dynamic load conditions.

Design Flexibility and Applications

The LD29150PTR's adjustable output architecture allows designers to implement customized voltage rails using standard resistor dividers. This flexibility makes it ideal for a wide range of applications including:

• Portable electronic devices
• Industrial measurement equipment
• Automotive infotainment systems
• Networking hardware
• Medical instrumentation

When combined with its 75dB power supply rejection ratio at 120Hz, the regulator effectively suppresses input voltage ripple, ensuring clean power delivery to sensitive analog and digital circuits. The enable control feature further enhances design flexibility by allowing remote shutdown capability for power sequencing applications.

Tags: Linear Voltage Regulator, Adjustable Regulator, STMicroelectronics IC, 1.5A Power Supply, PPAK Package