BD39012EFV-CE2

Overview

The BD39012EFV-CE2 is an automotive-grade system power management IC designed for microcontroller applications. It integrates a synchronous rectifier step-down DC/DC converter and a secondary LDO with built-in FETs. The device supports an input voltage range of 4 V to 45 V, providing adjustable output voltages from 0.784 V to 0.816 V for the DC/DC channel and fixed outputs near 5 V for the LDO. It features integrated protection mechanisms including UVLO, thermal shutdown, and overcurrent protection, housed in a compact HTSSOP-B24 package.

Feature Summary

• Integrates a synchronous step-down DC/DC converter and a secondary LDO with built-in power MOSFETs for efficient power delivery.
• Includes monitoring functions such as output over-voltage and under-voltage detection with PG output signals.
• Features a window watchdog timer and reset circuitry to ensure reliable microcontroller operation.
• Provides independent enable control for flexible system power sequencing.

Applications

• Automotive microcontroller system power supply
• ADAS module power management
• In-vehicle electronic control unit (ECU) power distribution

Procurement Notes

Verify the specific suffix CE2 against the manufacturer's current datasheet to confirm pinout and packaging details. Ensure compatibility with AEC-Q100 automotive grade requirements for your target application environment. Check for any recent lifecycle status updates or recommended alternative part numbers before finalizing procurement plans.

Selection Notes

Select this component when a wide input voltage range up to 45 V is required for direct battery connection. It is suitable for designs needing both adjustable high-current DC/DC conversion and stable LDO outputs within a single compact package. Consider the HTSSOP-B24 thermal performance for PCB layout optimization.

Part Context

This part belongs to ROHM Semiconductor's specialized automotive PMIC family, designed to simplify power architecture for vehicle electronics. It consolidates multiple power stages and safety features into one solution, reducing component count and board space compared to discrete implementations.

Replacement Considerations

Consult official substitution guides for cross-reference options. Verify functional equivalence regarding pin configuration and electrical specifications if considering alternatives.