Texas Instruments

LM1086IS-3.3

LM1086IS-3.3 Description

The LM1086IS-3.3 from Texas Instruments is a high-performance, 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 27.5V, this regulator is engineered for applications requiring robust power management. Its low dropout voltage of 1.5V at 1.5A ensures efficient operation even when the input voltage is close to the output level. The device features surface-mount packaging (DDPAK/TO-263), making it suitable for compact PCB designs.

LM1086IS-3.3 Features

• Fixed 3.3V Output: Precision-regulated voltage for stable power delivery.
• High Current Capability: Supports 1.5A output current, ideal for power-hungry circuits.
• Low Dropout Voltage: 1.5V @ 1.5A minimizes power dissipation, enhancing efficiency.
• Robust Protection: Includes over-current, over-temperature, and short-circuit protection for reliable operation.
• Excellent PSRR: 72dB (120Hz) ensures superior noise rejection in sensitive applications.
• Low Quiescent Current: 5 mA typical, reducing standby power consumption.
• RoHS3 Compliant & REACH Unaffected: Meets environmental and regulatory standards.
• Wide Operating Range: Input voltage up to 27.5V accommodates various power sources.

LM1086IS-3.3 Applications

The LM1086IS-3.3 is ideal for applications requiring a stable, high-current 3.3V supply, such as:

• Embedded Systems: Powering microcontrollers, FPGAs, and DSPs.
• Industrial Electronics: Motor control, PLCs, and instrumentation.
• Automotive Systems: Infotainment, sensors, and ECUs (where input voltage fluctuations are common).
• Consumer Electronics: Set-top boxes, routers, and audio/video equipment.
• Telecom Infrastructure: Base stations and networking hardware.

Conclusion of LM1086IS-3.3

The LM1086IS-3.3 stands out as a reliable, high-current linear regulator with low dropout, superior PSRR, and robust protection features. Its wide input range and efficient performance make it a preferred choice for demanding applications across industries. While it is in Last Time Buy status, its proven design and Texas Instruments' quality assurance ensure long-term reliability for existing deployments. For engineers seeking a stable 3.3V power solution, the LM1086IS-3.3 remains a top-tier option.