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LM72880-Q1

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Convertidor reductor síncrono automotriz de 80 V y 8A con I2C

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LM72880-Q1

PRESENTACIÓN PRELIMINAR
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Detalles del producto

Rating Automotive Topology Buck Iout (max) (A) 8 Vin (max) (V) 80 Vin (min) (V) 4.5 Vout (max) (V) 55 Vout (min) (V) 0.8 Features Adjustable switching frequency, Auto Mode, Automotive load dump, Enable, Fixed Output, Forced PWM, Frequency synchronization, Over Current Protection, Power good, Soft Start Fixed, Thermal shutdown, UVLO adjustable EMI features Spread Spectrum Control mode current mode Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2200 Operating temperature range (°C) -40 to 150 Iq (typ) (µA) 6.5 Duty cycle (max) (%) 99 Type Converter
Rating Automotive Topology Buck Iout (max) (A) 8 Vin (max) (V) 80 Vin (min) (V) 4.5 Vout (max) (V) 55 Vout (min) (V) 0.8 Features Adjustable switching frequency, Auto Mode, Automotive load dump, Enable, Fixed Output, Forced PWM, Frequency synchronization, Over Current Protection, Power good, Soft Start Fixed, Thermal shutdown, UVLO adjustable EMI features Spread Spectrum Control mode current mode Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2200 Operating temperature range (°C) -40 to 150 Iq (typ) (µA) 6.5 Duty cycle (max) (%) 99 Type Converter
VQFN (RRX) 29 36 mm² 6 x 6
  • AEC-Q100 qualified for automotive applications:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature
  • Synchronous CC-CV buck converter with I2C
    • Wide input voltage range: 4.5V to 80V
      • Meets LV148 / ISO21780 requirements
    • 1% accurate, programmable VOUT from 1V (3.3V) to 24V (48V) in 10mV (20mV) steps
    • 3% accurate, programmable ILIM(avg) from 0.5A (0.8A) to 7.5A (12A) in 50mA (80mA) steps
    • Output slew rate: 0.5mV/µs to 40mV/µs
    • Adjustable cable drop compensation
    • Output active discharge
  • Designed for pairing with TPS2674X-Q1 USB Type-C PD controllers
  • Designed for low EMI requirements
    • Facilitates CISPR 25 Class 5 compliance
    • ±8% dual-random spread spectrum with programmable modulation frequency
    • Programmable fSW: 200kHz to 2.2MHz
    • Programmable PFM or FPWM operation
  • Programmable protection features
    • UV/OV (PG) warning: ±5% or ±10%
    • OVP warning, fault: 5% to 36% in 1% steps
    • Internal hiccup-mode overcurrent protection
    • Enable, interrupt, and thermal shutdown
  • 6mm × 6mm thermally optimized, RoHS compliant, QFN-29 package with Pb-free plating
  • AEC-Q100 qualified for automotive applications:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature
  • Synchronous CC-CV buck converter with I2C
    • Wide input voltage range: 4.5V to 80V
      • Meets LV148 / ISO21780 requirements
    • 1% accurate, programmable VOUT from 1V (3.3V) to 24V (48V) in 10mV (20mV) steps
    • 3% accurate, programmable ILIM(avg) from 0.5A (0.8A) to 7.5A (12A) in 50mA (80mA) steps
    • Output slew rate: 0.5mV/µs to 40mV/µs
    • Adjustable cable drop compensation
    • Output active discharge
  • Designed for pairing with TPS2674X-Q1 USB Type-C PD controllers
  • Designed for low EMI requirements
    • Facilitates CISPR 25 Class 5 compliance
    • ±8% dual-random spread spectrum with programmable modulation frequency
    • Programmable fSW: 200kHz to 2.2MHz
    • Programmable PFM or FPWM operation
  • Programmable protection features
    • UV/OV (PG) warning: ±5% or ±10%
    • OVP warning, fault: 5% to 36% in 1% steps
    • Internal hiccup-mode overcurrent protection
    • Enable, interrupt, and thermal shutdown
  • 6mm × 6mm thermally optimized, RoHS compliant, QFN-29 package with Pb-free plating

The LM72880-Q1 is an 80V, ultra-low IQ, synchronous buck converter with constant-current constant-voltage (CC-CV) regulation and I2C interface. The device is designed to work with the TPS2674X-Q1 USB Type-C PD controllers.

The converter uses a peak current-mode control architecture for easy loop compensation, fast transient response, and excellent load and line regulation. The highly accurate CC-CV operation enables seamless transition between constant-current and constant-voltage modes. The I2C interface allows programming of output voltage in 10mV or 20mV steps, average output current limit in 50mA steps, as well as output voltage slew rate, switching frequency, soft-start slew rate, mode of operation, current loop compensation, output active discharge strength, and cable drop compensation gain.

The LM72880-Q1 also features an array of safety features including undervoltage and overvoltage protection with programmable thresholds, overcurrent protection with programmable hiccup mode, and thermal shutdown.

Additional features of the LM72880-Q1 include programmable diode emulation for lower current consumption at light-load conditions, open-drain nINT flag for fault reporting and output monitoring, precision enable input, monotonic start-up into prebiased load, integrated dual input (VIN and VOUTF) VCC supply regulator, and oversized VDDA regulator for powering external loads, such as companion USB PD controllers.

The LM72880-Q1 converter comes in a 6mm × 6mm thermally-optimized, 29-pin QFN package. The three die-attach pads (VIN, SW, and PGND) improve thermal performance and board level reliability (BLR).

The LM72880-Q1 is an 80V, ultra-low IQ, synchronous buck converter with constant-current constant-voltage (CC-CV) regulation and I2C interface. The device is designed to work with the TPS2674X-Q1 USB Type-C PD controllers.

The converter uses a peak current-mode control architecture for easy loop compensation, fast transient response, and excellent load and line regulation. The highly accurate CC-CV operation enables seamless transition between constant-current and constant-voltage modes. The I2C interface allows programming of output voltage in 10mV or 20mV steps, average output current limit in 50mA steps, as well as output voltage slew rate, switching frequency, soft-start slew rate, mode of operation, current loop compensation, output active discharge strength, and cable drop compensation gain.

The LM72880-Q1 also features an array of safety features including undervoltage and overvoltage protection with programmable thresholds, overcurrent protection with programmable hiccup mode, and thermal shutdown.

Additional features of the LM72880-Q1 include programmable diode emulation for lower current consumption at light-load conditions, open-drain nINT flag for fault reporting and output monitoring, precision enable input, monotonic start-up into prebiased load, integrated dual input (VIN and VOUTF) VCC supply regulator, and oversized VDDA regulator for powering external loads, such as companion USB PD controllers.

The LM72880-Q1 converter comes in a 6mm × 6mm thermally-optimized, 29-pin QFN package. The three die-attach pads (VIN, SW, and PGND) improve thermal performance and board level reliability (BLR).
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* Data sheet LM72880-Q1 80V, 5A, 8A, Automotive, High-Efficiency CC-CV Buck Converter With I2C datasheet PDF | HTML 16 abr 2025
Certificate LM72880QEVM-400 EU Declaration of Conformity (DoC) 25 mar 2025

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

LM72880QEVM-400 — Módulo de evaluación LM72880-Q1

El módulo de evaluación (EVM) LM72880-Q1 es un regulador CC/CC sincrónico tipo buck capaz de regular la tensión constante de corriente constante (CC-CV) con interfaz I2C. El EVM funciona en un amplio rango de tensión de entrada de 24 V a 70 V (en el terminal J4 VIN), y proporciona un máximo de 5 A (...)

Guía del usuario: PDF | HTML
No disponible en TI.com
Placa de evaluación

USB2ANY — Adaptador de interfaz USB2ANY

El adaptador de interfaz USB2ANY es una herramienta destinada a permitir que una computadora controle un módulo de evaluación (EVM) a través de una conexión USB. USB2ANY es compatible con varias interfaces de protocolo populares y proporciona fuentes de alimentación de 3.3 V y 5 V.

Guía del usuario: PDF
No disponible en TI.com
GUI para el módulo de evaluación (EVM)

LM72630-LM72650-LM72680-LM72880-GUI — GUI for LM726x0 and LM72880 to set I2C configuration registers

Graphical User Interface (GUI) to configure LM726x0 and LM72880 via I2C. You can use either the online GUI via a browser or the offline GUI.
Productos y hardware compatibles

Productos y hardware compatibles

Productos
Convertidores de CA/CC y CC/CC (FET integrado)
LM72880-Q1 — Convertidor reductor síncrono automotriz de 80 V y 8A con I2C
Iniciar Opciones de descarga
Herramienta de cálculo

LM72XXX-DESIGN-CALC — LM726xx, LM728xx quick-start design tool

This stand-alone tool facilitates and assists with the design of a DC/DC buck regulator based on the LM72xxx. The user can expeditiously arrive at an optimized design to meet the application requirements
Productos y hardware compatibles

Productos y hardware compatibles

Productos
Convertidores de CA/CC y CC/CC (FET integrado)
LM72880-Q1 — Convertidor reductor síncrono automotriz de 80 V y 8A con I2C
Descargar
Herramienta de diseño

LM72880-DESIGN — Design Resources for LM72880-Q1

Datasheet and design tools for LM72880-Q1
Productos y hardware compatibles

Productos y hardware compatibles

Productos
Convertidores de CA/CC y CC/CC (FET integrado)
LM72880-Q1 — Convertidor reductor síncrono automotriz de 80 V y 8A con I2C
Desarrollo de hardware
Placa de evaluación
LM72880QEVM-400 — Módulo de evaluación LM72880-Q1
Solicitar
Diseños de referencia

PMP23501 — Diseño de referencia para uso automotriz, entrada de 24 V a 60 V, dos puertos USB Power Delivery 60

Este diseño de referencia ofrece potencia para aplicaciones de sistemas avanzados de asistencia al conductor (ADAS), de infoentretenimiento y tableros automotrices. Funciona en el rango de entrada de 24 V a 60 V CC, con especial atención a la potencia de 48 V CC. Dispone de dos salidas USB Power (...)
Test report: PDF
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
VQFN (RRX) 29 Ultra Librarian
Se aplican los Términos y condiciones estándar de TI para los elementos de evaluación.

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

Los productos recomendados pueden tener parámetros, módulos de evaluación o diseños de referencia relacionados con este producto de TI.

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