MIC9130YM

Overview

The MIC9130YM is a high-voltage DC/DC switching controller designed for Power over Ethernet (PoE) Powered Device applications. It supports IEEE 802.3af standards with an input voltage range of 36V to 57V and delivers a regulated 3.3V output at up to 2.5A. Operating at a fixed 2.5MHz switching frequency, the device utilizes boost or buck topologies within a 16-pin SOIC package. It functions across an extended temperature range from -40°C to +125°C, ensuring reliable performance in demanding network infrastructure environments.

Feature Summary

• Integrated PoE PD controller compliant with IEEE 802.3af standards
• High-voltage input handling suitable for standard PoE power sourcing equipment
• Fixed high-frequency operation for compact passive component sizing
• Extended industrial temperature rating for robust deployment

Applications

• Power supply modules for Ethernet routers
• Power delivery systems for Ethernet switches
• IEEE 802.3af compliant Powered Device circuits

Procurement Notes

Verify the specific suffix 'YM' against the official Microchip datasheet to confirm package type and temperature grade. Ensure the procurement channel provides the original manufacturer's documentation. Cross-reference the RoHS status and active part status directly with the manufacturer's current product lifecycle announcements before finalizing orders.

Selection Notes

Select this component when designing PoE Powered Devices requiring a single 3.3V rail from standard PoE inputs. The fixed 2.5MHz frequency aids in minimizing external inductor and capacitor sizes compared to lower-frequency alternatives. Confirm that the load current requirements do not exceed the 2.5A limit and that the thermal design accommodates the specified operating temperature range.

Part Context

This component belongs to Microchip Technology's portfolio of power management solutions tailored for networking infrastructure. It addresses the specific needs of PoE endpoints by integrating control logic necessary for safe power extraction from LAN cables. The device complements other Microchip networking and interface products used in switch and router designs.

Replacement Considerations

Consult the official Microchip datasheet for direct pin-to-pin compatible alternatives within the same family. Verify that any substitute maintains IEEE 802.3af compliance and matches the 36-57V input range. Ensure the replacement supports the required 3.3V output configuration and SOIC-16 footprint.

FAQ

What IEEE standard does the MIC9130YM support?

The MIC9130YM is designed to be compliant with the IEEE 802.3af standard for Power over Ethernet.

What is the maximum output current capability?

The device supports an output current of up to 2.5A at the regulated 3.3V output level.