MC33730EKR2

Overview

The MC33730EKR2 is a switching power supply integrated circuit manufactured by NXP Semiconductors. It integrates multiple linear regulators alongside the primary switching controller, designed for applications requiring efficient power conversion with auxiliary voltage generation. The device operates within a supply voltage range of 5 V to 28 V and supports an output current capability of 3.0 A. Key electrical parameters include a rise time of 3 us and a fall time of 3 us. The component functions as a half-bridge driver type gate driver in specific configurations, featuring four drivers and four outputs. It exhibits a maximum turn-on delay time of 1 ms and maintains a typical operating supply current of 20 mA. The internal resistance is specified at 120 mOhms, with an output voltage of 7 V. The unit weight is recorded as 766.050 mg.

Feature Summary

• Integrates switching power supply functionality with multiple linear regulators for comprehensive power management
• Supports high-output current delivery suitable for demanding automotive and industrial loads
• Features fast switching characteristics with defined rise and fall times for precise control

Applications

• Automotive electronic control units requiring robust power regulation
• Industrial systems utilizing switch-mode power supplies with auxiliary rail generation
• Applications necessitating integrated linear regulator support alongside main switching topology

Procurement Notes

Verify component authenticity through authorized NXP distributors or certified partners. Confirm RoHS compliance status via official documentation prior to integration. Ensure storage conditions account for moisture sensitivity classification to prevent package damage during handling and reflow processes. Validate part number suffixes against current manufacturing specifications to avoid obsolete variants.

Selection Notes

Evaluate thermal performance requirements given the integrated power stage capabilities. Assess input voltage stability against the specified 5 V to 28 V operational range. Consider the need for external components to support the linear regulator outputs if additional filtering is required. Verify compatibility with system ground references and signal levels for the integrated drivers.

Part Context

This component belongs to the broader portfolio of power management ICs from NXP Semiconductors, historically associated with Freescale Semiconductor designs. It serves as a specialized solution for mixed-signal power applications, bridging the gap between pure switching converters and those requiring stable linear rails. The EKR2 suffix indicates a specific reel packaging configuration intended for automated surface-mount assembly lines.

Replacement Considerations

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