Inicio Gestión de la energía Circuitos integrados multicanal (PMIC)

LP8769-Q1

ACTIVO

PMIC automotriz para SoC hasta ASIL D con cuatro convertidores buck multifase de 5 A/20 A

Detalles del producto

Regulated outputs (#) 4 Step-down DC/DC converter 4 LDO 0 Vin (min) (V) 2.7 Vin (max) (V) 5.5 Iout (max) (A) 20 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
Regulated outputs (#) 4 Step-down DC/DC converter 4 LDO 0 Vin (min) (V) 2.7 Vin (max) (V) 5.5 Iout (max) (A) 20 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: 2.8 V to 5.5 V
    • 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
  • 4 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 configuration
    • Programmable output voltage slew-rate: 0.5 mV/µs to 33 mV/µs
    • Switching frequency: 2.2 MHz or 4.4 MHz
  • 10 configurable general purpose I/O (GPIO)
  • SPMI interface for multi-PMIC synchronization
  • Input overvoltage monitor (OVP) and undervoltage lockout (UVLO)

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  • AEC-Q100 Qualified with the following results:
    • Input voltage: 2.8 V to 5.5 V
    • 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
  • 4 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 configuration
    • Programmable output voltage slew-rate: 0.5 mV/µs to 33 mV/µs
    • Switching frequency: 2.2 MHz or 4.4 MHz
  • 10 configurable general purpose I/O (GPIO)
  • SPMI interface for multi-PMIC synchronization
  • Input overvoltage monitor (OVP) and undervoltage lockout (UVLO)

.

.

The LP8769x-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 LP8769x-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 LP8769x-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 LP8769x-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 LP8769-Q1 High Frequency Quad Step-Down DC-DC datasheet PDF | HTML 14 dic 2022

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Placa de evaluación

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Guía del usuario: PDF | HTML
Diseños de referencia

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Test report: PDF
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
VQFN-HR (RQK) 32 Ultra Librarian

Pedidos y calidad

Información incluida:
  • RoHS
  • REACH
  • Marcado del dispositivo
  • Acabado de plomo/material de la bola
  • Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

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