MIC9130BM-TR

Overview

The MIC9130BM-TR is a high-voltage, single-output switching controller manufactured by Microchip Technology. It operates in boost and buck topologies with a fixed switching frequency of 2.5 MHz. The device supports an input voltage range of 36 V to 57 V and provides a regulated output voltage of 4.85 V. It delivers a maximum output current of 1 A with a maximum duty cycle of 50%. The component is designed for surface mount installation in SOIC-16 packages and functions within a temperature range of -40°C to +125°C.

Feature Summary

• Supports both boost and buck converter topologies for flexible power conversion architectures
• Integrates a high-frequency PWM control loop operating at 2.5 MHz for compact passive component sizing
• Features internal compensation and protection mechanisms suitable for high-voltage DC/DC applications

Applications

• Power Over Ethernet (PoE) Powered Device (PD) evaluation boards
• IEEE 802.3af compliant power solutions for network infrastructure
• DC/DC conversion stages in Ethernet routers and switches

Procurement Notes

Verify the specific suffix 'BM' against the manufacturer's official datasheet to confirm pinout compatibility and thermal characteristics. Ensure the 'TR' designation matches the required reel quantity for automated assembly processes. Cross-reference the RoHS status and lead-free specifications with the latest production documentation to meet environmental compliance requirements for the target deployment region.

Selection Notes

Select this component when designing systems requiring high-voltage input handling up to 57 V. The 2.5 MHz switching frequency allows for smaller external inductors and capacitors compared to lower-frequency alternatives. Consider the 1 A output limit and 4.85 V fixed output when determining suitability for PoE PD loads or similar telecom power distribution networks.

Part Context

The MIC9130 series belongs to Microchip's portfolio of high-voltage switching controllers tailored for telecommunications and industrial applications. These devices are engineered to interface directly with high-voltage rails common in Power over Ethernet standards. The family emphasizes reliability and efficiency in converting elevated DC voltages to stable lower voltage levels for downstream logic and peripheral circuits.

Replacement Considerations

Consult the Microchip product selector tool for direct functional equivalents within the same voltage class. Verify that alternative part numbers maintain the 2.5 MHz switching frequency and SOIC-16 package dimensions to ensure board layout compatibility without redesign.