LP87524URNFTQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LP87524URNFTQ1 is an automotive-grade quad-output synchronous buck converter IC from Texas Instruments, designed for high-efficiency power management in demanding environments. It features four independent DC-DC converters with a total output current capability of up to 10A. The device operates within an input voltage range of 2.8V to 5.5V and provides adjustable output voltages from 0.6V to 3.36V. Key electrical parameters include a 4MHz switching frequency, -40°C to +125°C operating temperature range, and AEC-Q100 Grade 1 qualification. It utilizes a 26-pin PowerVFQFN package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates four high-efficiency synchronous buck converters with phase-interleaving capabilities to reduce input ripple and improve transient response.
• Supports automatic transition between Pulse Width Modulation (PWM) and Pulse Frequency Modulation (PFM) modes to optimize efficiency across varying load conditions.
• Includes remote voltage sensing functionality to compensate for IR drops between the regulator output and the load point, ensuring precise voltage regulation.
• Features comprehensive protection mechanisms including over-temperature warning, over-voltage protection, under-voltage lockout, and short-circuit/overload protection.

Voltage Regulators - DC DC Switching Regulators Applications

• Power supply systems for Automotive Radar and Lidar MMICs
• High-performance automotive processor and platform voltage regulation
• Infotainment system power distribution networks
• Advanced Driver Assistance Systems (ADAS) controller power management

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'URNF' against the official Texas Instruments datasheet to confirm pinout, thermal pad configuration, and material compliance. Ensure the component meets AEC-Q100 Grade 1 requirements for your target application temperature range. Cross-reference the ordering part number with the manufacturer's latest release notes to avoid obsolete or discontinued variants.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing automotive power architectures requiring multiple isolated rails from a single input source. It is suitable for applications needing high current density and compact board space due to the 4MHz switching frequency. Consider the 26-PowerVFQFN package constraints for thermal design and ensure compatibility with I2C control interfaces for dynamic voltage scaling if required by the system architecture.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LP87524x-Q1 family, which is specifically engineered for automotive applications. It complements other Texas Instruments PMIC solutions by offering a multi-phase approach in a single package, reducing the bill of materials compared to using discrete regulators. The family supports various output configurations to meet the diverse voltage and current needs of modern automotive electronics.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes may include LP87524JRNFRQ1 or LP87524MRNFRQ1, provided the package and pinout are identical. Verify that any replacement maintains the same AEC-Q100 qualification level and thermal performance characteristics. Always consult the manufacturer's substitution guide to ensure functional equivalence in terms of control interface and protection features.