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LP8762-Q1

ACTIVE

Automotive PMIC for SoCs up to ASIL D with four 3A/12A multiphase buck converters

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Data sheet

LP8762-Q1

ACTIVE
Data sheet Order now

Product details

Processor supplier Generic Processor name Generic Regulated outputs (#) 4 Step-down DC/DC converter 4 LDO 0 Vin (min) (V) 2.7 Vin (max) (V) 5.5 Iout (max) (A) 12 TI functional safety category Functional Safety-Compliant Configurability Factory programmable, Software configurable, User programmable Features Error signal monitor, I2C, Multiphase, Power good, SPI, SPMI, Thermal monitor, Voltage monitoring, Watchdog Rating Automotive Operating temperature range (°C) -40 to 125
Processor supplier Generic Processor name Generic Regulated outputs (#) 4 Step-down DC/DC converter 4 LDO 0 Vin (min) (V) 2.7 Vin (max) (V) 5.5 Iout (max) (A) 12 TI functional safety category Functional Safety-Compliant Configurability Factory programmable, Software configurable, User programmable Features Error signal monitor, I2C, Multiphase, Power good, SPI, SPMI, Thermal monitor, Voltage monitoring, Watchdog Rating Automotive Operating temperature range (°C) -40 to 125
VQFN-HR (RQK) 32 27.5 mm² 5.5 x 5
  • AEC-Q100 qualified with the following results:
    • Input voltage: 2.8V to 5.5V
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature range
    • Device HBM ESD classification Level 2
    • Device CDM ESD classification Level C4B
  • Functional safety-compliant
    • Developed for functional safety applications
    • Documentation available to aid ISO 26262 system design up to ASIL-D
    • Documentation available to aid IEC 61508 system design up to SIL-3
    • Systematic capability up to ASIL-D
    • Hardware integrity up to ASIL-D
    • Windowed voltage and over-current monitors
    • Watchdog with selectable trigger / Q&A mode
    • Level or PWM error signal monitoring (ESM)
    • Thermal monitoring with high temperature warning and thermal shutdown
    • Bit-integrity (CRC) error detection on configuration registers and non-volatile memory
  • Four high-efficiency step-down DC/DC converters:
    • Output voltage: 0.3V to 3.34V (0.3V to 1.9V for multi-phase outputs)
    • Maximum output current: 3A per phase, up to 12A with 4-phase configuration
    • Programmable output voltage slew-rate: 0.5mV/µs to 33mV/µs
    • Switching frequency: 2.2MHz or 4.4MHz
  • Ten configurable general purpose I/O (GPIO)
  • SPMI interface for multi-PMIC synchronization
  • Input overvoltage monitor (OVP) and undervoltage lockout (UVLO)

.

.
  • AEC-Q100 qualified with the following results:
    • Input voltage: 2.8V to 5.5V
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature range
    • Device HBM ESD classification Level 2
    • Device CDM ESD classification Level C4B
  • Functional safety-compliant
    • Developed for functional safety applications
    • Documentation available to aid ISO 26262 system design up to ASIL-D
    • Documentation available to aid IEC 61508 system design up to SIL-3
    • Systematic capability up to ASIL-D
    • Hardware integrity up to ASIL-D
    • Windowed voltage and over-current monitors
    • Watchdog with selectable trigger / Q&A mode
    • Level or PWM error signal monitoring (ESM)
    • Thermal monitoring with high temperature warning and thermal shutdown
    • Bit-integrity (CRC) error detection on configuration registers and non-volatile memory
  • Four high-efficiency step-down DC/DC converters:
    • Output voltage: 0.3V to 3.34V (0.3V to 1.9V for multi-phase outputs)
    • Maximum output current: 3A per phase, up to 12A with 4-phase configuration
    • Programmable output voltage slew-rate: 0.5mV/µs to 33mV/µs
    • Switching frequency: 2.2MHz or 4.4MHz
  • Ten configurable general purpose I/O (GPIO)
  • SPMI interface for multi-PMIC synchronization
  • Input overvoltage monitor (OVP) and undervoltage lockout (UVLO)

.

.

The LP8762-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 LP8762-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 LP8762-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 LP8762-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.
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* Data sheet LP8762-Q1 Four-Phase, 12A Buck Converter With Integrated Switches datasheet PDF | HTML 02 Oct 2024

Design & development

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Evaluation board

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User guide: PDF | HTML
Not available on TI.com
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The LP87644Q1EVM board can be used to test, demo, debug and configure one or more LP8764-Q1 power managements ICs for automotive and industrial applications. The device on board is LP876441E4RQKRQ1 which has 1+1+1+1-phase configuration for 4 different output voltage rails. The boards can be (...)
User guide: PDF | HTML
Not available on TI.com
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