LM5012DDAR

Voltage Regulators - DC DC Switching Regulators Overview

The LM5012DDAR is a non-synchronous buck DC/DC converter from Texas Instruments, designed for rugged applications with a wide input voltage range of 6 V to 100 V. It delivers a continuous output current of 2.5 A and features an integrated 100-V power MOSFET with an on-resistance of 0.25 Ω. The device operates with a switching frequency up to 1 MHz and includes a fixed 3-ms internal soft-start timer. It supports junction temperatures from -40°C to +125°C and meets CISPR 25 Class 5 EMI standards.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated 100-V power MOSFET eliminates external high-side switch requirements
• Optimized for ultra-low EMI by meeting CISPR 25 Class 5 standards
• Fixed 3-ms internal soft-start timer simplifies design and limits inrush current
• Diode emulation mode enhances efficiency at light load conditions

Voltage Regulators - DC DC Switching Regulators Applications

• Hybrid, electric, and powertrain systems
• Inverter and motor control circuits
• Industrial transport power supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix DDAR corresponds to the SO-PowerPAD-8 package and cut tape or reel packaging options. Confirm RoHS compliance status and functional safety documentation availability if required for automotive or industrial certification. Ensure the ordering part number matches the exact pinout and thermal pad configuration specified in the official datasheet to prevent assembly errors.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a wide input voltage range up to 100 V is required without external surge suppression. It is suitable for designs needing pin-to-pin compatibility with LM5163, LM5164, or LM5013-Q1 families. Choose this IC for applications prioritizing low EMI emissions and reduced solution size through integrated bias regulators and boot diodes.

Voltage Regulators - DC DC Switching Regulators Part Context

The LM5012 belongs to Texas Instruments' family of high-voltage buck converters aimed at automotive and industrial markets. It shares architectural similarities with the LM5163 and LM5164 but offers higher current capability. The device utilizes constant-on-time (COT) control architecture to minimize external compensation components while maintaining stability across varying load and line conditions.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Pin-to-pin compatible alternatives include the LM5163, LM5164, and LM5013-Q1. Verify that the substitute part meets the specific current rating and EMI requirements of the original design before implementation.