LP876440C0RQKRQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LP876440C0RQKRQ1 is an automotive PMIC featuring four integrated buck converters designed for System-on-Chip (SoC) power management. It provides two high-current phases capable of delivering up to 20 A each and two lower-current phases rated at 5 A each. The device operates within a supply voltage range of 2.8 V to 5.5 V and supports output voltages from 0.3 V to 3.6 V. Packaged in a 32-pin VQFN-HR (RQK) with exposed thermal pad, it functions across an extended temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates four independent synchronous buck converters with dual 20-A and dual 5-A current capabilities.
• Designed specifically for automotive SoC applications requiring ASIL D compliance support.
• Features integrated power switches to minimize external component count and board space.
• Supports flexible output voltage programming via external resistor dividers.

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive System-on-Chip (SoC) power distribution
• ADAS (Advanced Driver Assistance Systems) processor power supplies
• Infotainment system main logic power regulation
• Instrument cluster controller power management

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number including the RQKRQ1 suffix to ensure correct packaging and automotive qualification. Confirm RoHS compliance status through official Texas Instruments documentation prior to integration. Ensure design compatibility with the specified VQFN-HR package thermal requirements and pinout configuration.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing for automotive SoCs requiring high transient response and significant current delivery from a single IC. The integrated nature reduces BOM complexity compared to discrete solutions. Ensure input voltage sources remain within the 2.8 V to 5.5 V operational window to maintain stable regulation across all four phases.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LP8764-Q1 family of automotive power management ICs. It serves as a specialized solution for complex electronic control units in vehicles. The part integrates multiple regulators to replace several discrete components, offering a compact footprint suitable for space-constrained automotive electronics.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Consult Texas Instruments documentation for direct pin-to-pin compatible alternatives within the LP8764 series. Verify that any substitute maintains the required 20-A/5-A phase configuration and automotive reliability standards.

Voltage Regulators - DC DC Switching Regulators FAQ

What is the maximum output current per phase?

The device features two phases capable of 20 A each and two phases capable of 5 A each.

Is this component qualified for automotive use?

Yes, it is designed for automotive applications and supports ASIL D requirements for SoC power management.

What package type does the LP876440C0RQKRQ1 use?

It utilizes a 32-pin VQFN-HR (RQK) package with an exposed thermal pad for efficient heat dissipation.