LP8764-Q1 Series

4 5-A/20-A multiphase buck converters PMIC for automotive SoCs

Catalog

4 5-A/20-A multiphase buck converters PMIC for automotive SoCs

Part	Voltage - Output (Min/Fixed)	Current - Output	Function	Package / Case	Topology	Number of Outputs	Grade	Mounting Type	Voltage - Input (Max) [Max]	Output Configuration	Operating Temperature [Max]	Operating Temperature [Min]	Qualification	Frequency - Switching	Voltage - Output (Max) [Max]	Output Type	Voltage - Input (Min) [Min]
Texas Instruments LP876411B5RQKRQ1	0.3 V	20 A	Step-Down	32-PowerVFQFN	Buck	4	Automotive	Surface Mount Wettable Flank	5.5 V	Positive	125 °C	-40 °C	AEC-Q100	2.2 MHz 4.4 MHz	3.34 V	Adjustable	2.8 V
Texas Instruments LP876441B1RQKRQ1	0.3 V	20 A	Step-Down	32-PowerVFQFN	Buck	4	Automotive	Surface Mount Wettable Flank	5.5 V	Positive	125 °C	-40 °C	AEC-Q100	2.2 MHz 4.4 MHz	3.34 V	Adjustable	2.8 V
Texas Instruments LP876411B4RQKRQ1	0.3 V	20 A	Step-Down	32-PowerVFQFN	Buck	4	Automotive	Surface Mount Wettable Flank	5.5 V	Positive	125 °C	-40 °C	AEC-Q100	2.2 MHz 4.4 MHz	3.34 V	Adjustable	2.8 V

Catalog

4 5-A/20-A multiphase buck converters PMIC for automotive SoCs

Key Features

• AEC-Q100 Qualified with the following results:Input voltage: 2.8 V to 5.5 VDevice temperature grade 1: –40°C to +125°C ambient operating temperature rangeDevice HBM ESD classification Level 2Device CDM ESD classification Level C4BFunctional Safety-CompliantDeveloped for functional safety applicationsDocumentation available to aid ISO 26262 system design up to ASIL-DDocumentation available to aid IEC 61508 system design up to SIL-3Systematic capability up to ASIL-DHardware integrity up to ASIL-DWindowed voltage and over-current monitorsWatchdog with selectable trigger / Q&A modeLevel or PWM error signal monitoring (ESM)Thermal monitoring with high temperature warning and thermal shutdownBit-integrity (CRC) error detection on configuration registers and non-volatile memory4 high-efficiency step-down DC/DC converters:Output voltage: 0.3 V to 3.34 V (0.3 V to 1.9 V for multi-phase outputs)Maximum output current: 5 A per phase, up to 20 A with 4-phase configurationProgrammable output voltage slew-rate: 0.5 mV/µs to 33 mV/µsSwitching frequency: 2.2 MHz or 4.4 MHz10 configurable general purpose I/O (GPIO)SPMI interface for multi-PMIC synchronizationInput overvoltage monitor (OVP) and undervoltage lockout (UVLO)..AEC-Q100 Qualified with the following results:Input voltage: 2.8 V to 5.5 VDevice temperature grade 1: –40°C to +125°C ambient operating temperature rangeDevice HBM ESD classification Level 2Device CDM ESD classification Level C4BFunctional Safety-CompliantDeveloped for functional safety applicationsDocumentation available to aid ISO 26262 system design up to ASIL-DDocumentation available to aid IEC 61508 system design up to SIL-3Systematic capability up to ASIL-DHardware integrity up to ASIL-DWindowed voltage and over-current monitorsWatchdog with selectable trigger / Q&A modeLevel or PWM error signal monitoring (ESM)Thermal monitoring with high temperature warning and thermal shutdownBit-integrity (CRC) error detection on configuration registers and non-volatile memory4 high-efficiency step-down DC/DC converters:Output voltage: 0.3 V to 3.34 V (0.3 V to 1.9 V for multi-phase outputs)Maximum output current: 5 A per phase, up to 20 A with 4-phase configurationProgrammable output voltage slew-rate: 0.5 mV/µs to 33 mV/µsSwitching frequency: 2.2 MHz or 4.4 MHz10 configurable general purpose I/O (GPIO)SPMI interface for multi-PMIC synchronizationInput overvoltage monitor (OVP) and undervoltage lockout (UVLO)..

Description

The LP8764-Q1 device is designed to meet the power management requirements of the latest processors and platforms in various safety-relevant automotive and industrial applications. The device has four step-down DC/DC converter cores, that are configurable for five different phase configurations from one 4-phase output to four 1-phase outputs. The device settings can be changed by I2C-compatible serial interface or by a SPI serial interface. The automatic PFM/PWM (AUTO mode) operation together with the automatic phase adding and phase shedding maximizes efficiency over a wide output-current range. The LP8764-Q1 device supports remote differential voltage sensing for multiphase outputs to compensate IR drop between the regulator output and the point-of-load (POL) that improves the accuracy of the output voltage. The switching clock can be forced to PWM mode and the phases are interleaved. The switching can be synchronized to an external clock and spread-spectrum mode can be enabled to minimize the disturbances. The LP8764-Q1 device is designed to meet the power management requirements of the latest processors and platforms in various safety-relevant automotive and industrial applications. The device has four step-down DC/DC converter cores, that are configurable for five different phase configurations from one 4-phase output to four 1-phase outputs. The device settings can be changed by I2C-compatible serial interface or by a SPI serial interface. The automatic PFM/PWM (AUTO mode) operation together with the automatic phase adding and phase shedding maximizes efficiency over a wide output-current range. The LP8764-Q1 device supports remote differential voltage sensing for multiphase outputs to compensate IR drop between the regulator output and the point-of-load (POL) that improves the accuracy of the output voltage. The switching clock can be forced to PWM mode and the phases are interleaved. The switching can be synchronized to an external clock and spread-spectrum mode can be enabled to minimize the disturbances.