STEF512SRDBPUR

Current Regulation/Management Overview

The STEF512SRDBPUR is a dual electronic fuse integrating protection for 5 V and 12 V rails within a single package. It features low ON-resistance power MOSFETs to minimize voltage drop during normal operation. The device includes precise overvoltage clamping, fixed overcurrent trip points, and input undervoltage lockout (UVLO). A 5 V channel provides reverse blocking capability, while the 12 V channel supports adjustable soft-start via external capacitors. Thermal shutdown disconnects the load if anomalous conditions persist.

Current Regulation/Management Feature Summary

• Integrates dual eFuse channels for 5 V and 12 V rails in one chip
• Provides precise output overvoltage clamp for each channel
• Features fast reverse current protection on the 5 V channel
• Allows adjustable output voltage slew rate via external capacitors

Current Regulation/Management Applications

• Hot-swap operation requiring in-rush current control
• Consumer electronics power distribution
• Enterprise data storage systems
• Computing solutions with multiple voltage rails

Current Regulation/Management Procurement Notes

Verify the complete part number including suffixes such as SRDBPUR against official STMicroelectronics documentation to ensure correct package type and thermal mode configuration. Confirm that the specific variant matches the required reverse blocking and auto-retry or latch specifications for the target application design.

Current Regulation/Management Selection Notes

Select this component when simultaneous protection for 5 V and 12 V lines is required in a compact form factor. Consider the integrated reverse blocking feature for the 5 V rail if load-side holdup energy is present. Ensure external soft-start capacitors are selected to meet startup slew rate requirements without compromising in-rush current limits.

Current Regulation/Management Part Context

This device belongs to STMicroelectronics' dual-channel eFuse portfolio, designed to simplify circuit protection by combining two independent fuses into one plastic package. It reduces bill of materials and board dimensions compared to discrete solutions. The series targets applications demanding high reliability and intelligent fault response in consumer and enterprise environments.

Current Regulation/Management Replacement Considerations

Publicly confirmed substitute part numbers for STEF512SRDBPUR are not available in the provided source material.