MIC9130BQS

Overview

The MIC9130BQS is a current-mode PWM controller designed for telecom applications. It efficiently converts -48V input voltages to logic levels. The device operates within an input voltage range of 36V to 57V and provides a single 3.3V output at up to 2.5A. It achieves approximately 80% efficiency. The component is housed in a 16-SSOP package with a width of 3.90mm. It supports surface mount installation and functions within an operating temperature range of -40°C to 125°C.

Feature Summary

• Current-mode PWM control architecture for efficient DC-to-DC conversion
• High voltage start-up capability for telecom power systems
• IEEE 802.3af compliant Powered Device (PD) solution design

Applications

• Telecom voltage regulation
• Ethernet routers power supply
• Ethernet switches power supply

Procurement Notes

Verify part status carefully as the MIC9130BQS is listed as obsolete or discontinued by major distributors. Confirm availability through alternative channels or authorized secondary markets if immediate procurement is required. Ensure the specific suffix matches the desired packaging format, such as tube or tape and reel, when sourcing replacements.

Selection Notes

Select this component for designs requiring robust conversion of standard -48V telecom rails to low-voltage logic supplies. The current-mode control offers stable performance under varying load conditions. Consider the thermal characteristics within the specified -40°C to 125°C range during board layout. Verify compatibility with existing IEEE 802.3af infrastructure requirements.

Part Context

This controller belongs to Microchip Technology's line of specialized power management integrated circuits. It addresses the specific needs of telecommunications infrastructure where reliable voltage translation from high-voltage DC buses is critical. The device integrates necessary control loops to maintain regulation without external complex compensation networks.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.