STMicroelectronics LD39100PUR Adjustable Linear Voltage Regulator IC
- Brand: STMicroelectronics
- Product Code: LD39100PUR
- Availability: In Stock
$0.38
- Ex Tax: $0.38
Advanced Voltage Regulation for Modern Electronics
In today's rapidly evolving electronic landscape, precision power management remains critical for maintaining device performance and reliability. The STMicroelectronics LD39100PUR adjustable linear voltage regulator IC represents a significant advancement in this field, combining cutting-edge technology with practical design features to deliver exceptional performance across diverse applications. This monolithic integrated circuit (IC) operates as a positive adjustable regulator, offering engineers unprecedented flexibility in power supply design while maintaining exceptional stability and efficiency.
Technical Excellence in Compact Packaging
Housed in a space-saving 6-VDFN exposed pad package, this surface-mount regulator delivers 1A of continuous output current while maintaining a remarkably low dropout voltage of just 0.4V at full load. Its compact 3x3mm footprint makes it ideal for space-constrained designs in consumer electronics, industrial automation, and IoT devices. The device's thermal protection and overcurrent safeguards ensure reliable operation even in demanding environments, with an operating temperature range spanning from -40°C to 125°C.
The LD39100PUR's adjustable output voltage range (0.8V to 4.6V) provides designers with exceptional flexibility, complemented by a maximum input voltage rating of 5.5V. This combination enables efficient power conversion in battery-powered applications where maintaining regulation during voltage fluctuations is crucial. The device's 70dB PSRR (power supply rejection ratio) at 1kHz ensures clean, stable output voltage even when working with noisy input sources.
| Parameter | Specification |
|---|---|
| Output Current | 1A |
| Dropout Voltage | 0.4V @ 1A |
| Quiescent Current | 50µA |
| Operating Temperature | -40°C to 125°C |
Comprehensive Protection Suite
Engineers will appreciate the built-in protection features that make this regulator exceptionally robust. The integrated overcurrent, overtemperature, and short-circuit protection mechanisms ensure long-term reliability while simplifying system design. The enable and power good control features provide additional system-level control, making it suitable for applications requiring power sequencing or fault monitoring.
With its tape and reel packaging format and active product status, the LD39100PUR offers excellent supply chain reliability. The 300µA maximum supply current ensures minimal power consumption in standby modes, making it particularly suitable for portable devices where battery life optimization is critical. The device's adjustable output configuration allows customization for specific application requirements without requiring multiple component variants.
Broad Application Spectrum
This versatile regulator finds applications in a wide range of electronic systems, from industrial control equipment and medical devices to consumer electronics and automotive systems. Its combination of high current capability, low dropout performance, and comprehensive protection features makes it an ideal choice for powering sensitive electronics in challenging environments. The device's surface-mount packaging facilitates automated assembly processes while maintaining excellent thermal performance through its exposed pad design.
Tags: Semiconductors, Voltage Regulators, Power Management, Electronic Components, Industrial Electronics