STMicroelectronics

LD1086V33  

Linear & Switching Voltage Regulators

LD1086V33 Description

The LD1086V33 from STMicroelectronics is a fixed-output linear voltage regulator designed to deliver a stable 3.3V output at up to 1.5A of continuous current. With a wide input voltage range of up to 30V, it is well-suited for applications requiring robust voltage regulation. The device features a low dropout voltage of 1.5V @ 1.5A, ensuring efficient operation even with marginal input-to-output differentials. Its 79dB PSRR (120Hz) minimizes noise, making it ideal for sensitive analog and digital circuits. Housed in a TO-220AB package, the LD1086V33 is designed for through-hole mounting and offers over-current and over-temperature protection, enhancing reliability in demanding environments.

LD1086V33 Features

• Fixed 3.3V Output: Precision-regulated voltage for stable power delivery.
• High Current Capability: Supports up to 1.5A output current.
• Low Dropout Voltage: 1.5V @ 1.5A ensures efficiency in low-headroom applications.
• High PSRR: 79dB (120Hz) for superior noise rejection.
• Robust Protection: Includes over-current and over-temperature safeguards.
• Wide Input Range: Accepts up to 30V, accommodating varied power sources.
• RoHS3 Compliant: Meets environmental standards for lead-free manufacturing.
• Low Quiescent Current: 10 mA typical, reducing power waste in standby modes.

LD1086V33 Applications

The LD1086V33 excels in scenarios requiring reliable, high-current voltage regulation:

• Industrial Control Systems: Powering microcontrollers, sensors, and PLCs.
• Automotive Electronics: Stable voltage for infotainment and telematics.
• Embedded Systems: Ideal for single-board computers and IoT devices.
• Test & Measurement Equipment: Low-noise supply for precision analog circuits.
• Consumer Electronics: Used in set-top boxes, routers, and audio amplifiers.

Conclusion of LD1086V33

The LD1086V33 stands out as a high-performance linear regulator, combining high current output, low dropout, and excellent noise immunity. While marked as obsolete, its robust design and protection features make it a reliable choice for legacy systems or applications requiring proven stability. Engineers seeking a 3.3V regulator with 1.5A capability will find it particularly valuable in industrial, automotive, and embedded designs where durability and efficiency are critical.

LD1086V33 Documents

Download datasheets and manufacturer documentation for LD1086V33

Datasheets :

LD1086      

HTML Datasheet :

LD1086