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LTC4257CS8#PBF

LTC4257CS8#PBF Description

The LTC4257CS8#PBF from Analog Devices Inc. is a single-channel Power over Ethernet (PoE) controller designed for Powered Device (PD) applications. Compliant with the IEEE 802.3af (PoE) standard, it integrates an internal switch and supports a maximum supply voltage of 57V, delivering up to 12.95W of power. Housed in an 8-pin SOIC package, this surface-mount IC operates within a 0°C to 70°C temperature range, making it suitable for industrial and commercial environments. With a low 3mA supply current, it ensures efficient power management while maintaining RoHS3 compliance and REACH unaffected status.

LTC4257CS8#PBF Features

• Single-Channel PD Controller: Simplifies PoE implementation with integrated detection, classification, and power switching.
• IEEE 802.3af Compliance: Ensures interoperability with standard PoE power sourcing equipment (PSE).
• Internal MOSFET Switch: Eliminates the need for external switching components, reducing BOM cost and PCB footprint.
• Wide Input Voltage Range (Up to 57V): Supports robust operation in varying power conditions.
• Low 3mA Supply Current: Enhances energy efficiency in power-sensitive applications.
• Surface-Mount 8-SOIC Package: Optimized for compact designs and automated assembly.
• RoHS3 & REACH Compliant: Meets environmental and regulatory standards for global deployment.

LTC4257CS8#PBF Applications

• IP Phones & VoIP Devices: Provides reliable power and data delivery over Ethernet.
• Wireless Access Points: Enables seamless installation without dedicated power cabling.
• Security Cameras (IP Cameras): Simplifies deployment in remote or hard-to-reach locations.
• IoT Edge Devices: Supports low-power sensors and controllers in smart infrastructure.
• Industrial Automation: Powers sensors and actuators in PoE-enabled factory systems.

Conclusion of LTC4257CS8#PBF

The LTC4257CS8#PBF is a highly integrated, efficient PoE PD controller ideal for modern networked devices requiring simplified power delivery. Its compliance with 802.3af, internal switching capability, and low power consumption make it a superior choice over discrete solutions. Whether for IP communications, surveillance, or IoT, this IC delivers reliable performance while reducing design complexity and cost. Its industrial-grade operating range and environmental compliance further ensure durability in diverse applications.