LP875653RNFRQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LP875653RNFRQ1 is an automotive-grade PMIC featuring four synchronous buck converters. It operates within a 2.8 V to 5.5 V input range and delivers up to 16 A per output. Adjustable outputs span from 0.6 V to 3.36 V with a fixed 0.6 V reference. The device integrates a 2 MHz switching frequency, supports I2C control, and includes programmable soft-start and sequencing. It is housed in a 26-pin VQFN package rated for -40°C to +125°C junction temperature.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates four independent high-current synchronous buck regulators
• Supports flexible output voltage adjustment via external resistors
• Features integrated I2C interface for digital configuration and monitoring
• Includes advanced protection mechanisms against overcurrent and thermal overload

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive infotainment system power distribution
• Telematics unit core voltage regulation
• ADAS sensor module power supply
• Vehicle gateway controller power management

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number including suffixes to ensure correct package and temperature grade. Confirm AEC-Q100 qualification status matches project requirements. Check datasheet for specific pinout compatibility and recommended external component values. Validate manufacturing source documentation for authenticity.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when multiple isolated low-voltage rails are required from a single automotive bus. Evaluate total output current capacity against peak load demands. Consider the 2 MHz switching frequency for passive size reduction compared to lower-frequency alternatives. Ensure PCB layout supports the thermal requirements of the VQFN package.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LP8756x-Q1 family of multi-phase buck converters designed for robust automotive environments. It complements other Texas Instruments PMICs by providing high-density power solutions for complex electronic control units requiring multiple regulated voltages simultaneously.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LP875652RNFRQ1 offers three outputs instead of four. LP875651RNFTQ1 provides two outputs. LP875654RNFRQ1 is not a standard variant; check LP875653RNFRQ1 for four outputs. LP875620RNFRQ1 is a similar quad-output option.