SIC402ACD-T1-GE3

Overview

The SIC402ACD-T1-GE3 is a dual-channel synchronous step-down switching regulator manufactured by Vishay Siliconix. It integrates high-side and low-side N-channel power MOSFETs into a single compact package. The device operates with an input voltage range of 2.7 V to 18 V and supports adjustable output voltages. It features a fixed switching frequency of 1.5 MHz, enabling the use of small external inductors and capacitors. The IC includes comprehensive protection mechanisms such as over-current protection, thermal shutdown, and soft-start functionality.

Feature Summary

• Integrates dual synchronous buck converters with internal power MOSFETs for space-constrained designs
• Supports wide input voltage range suitable for various bus architectures
• Includes built-in protection against over-current, over-temperature, and undervoltage lockout

Applications

• Point-of-load regulation for industrial equipment
• Power distribution systems in telecommunications infrastructure
• Embedded computing platforms requiring multiple voltage rails

Procurement Notes

Verify the complete part number including the suffix -GE3 to ensure compliance with RoHS and REACH directives. Confirm the specific tape and reel packaging configuration required for your assembly line. Cross-reference the datasheet revision date to ensure compatibility with your design specifications. Check for any recent lifecycle notices regarding obsolescence or recommended replacements from the manufacturer.

Selection Notes

Select this component when a dual-channel solution is required to save board space compared to using two separate regulators. Consider the thermal performance of the MLP55-32L package relative to your expected load current. Ensure the 1.5 MHz switching frequency aligns with your electromagnetic interference (EMI) constraints and passive component availability. Verify that the control loop compensation components are suitable for the desired output voltage and load transient requirements.

Part Context

This part belongs to the SiC402A family of dual synchronous buck regulators. It is designed to replace discrete solutions or single-channel regulators in applications needing two independent outputs. The integration of driver circuitry and power switches simplifies the bill of materials and reduces layout complexity for high-density power designs.

Replacement Considerations

Check for direct pin-to-pin compatible alternatives within the same Vishay Siliconix portfolio if supply chain constraints exist. Verify that any substitute maintains the same input voltage range, switching frequency, and package dimensions to avoid PCB redesign.