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LMR14020-Q1

ACTIVO

Convertidor reductor SIMPLE SWITCHER® de grado automotriz de 40 V, 2 A, 2,2 MHz con IQ de 40 uA

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LMR33620-Q1 ACTIVO Convertidor de voltaje reductor síncrono de 3,8 V a 36 V, 2 A Smaller footprint, higher efficiency, lower IQ and lower EMI.

LMR14020-Q1

ACTIVO
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Detalles del producto

Rating Automotive Topology Buck Iout (max) (A) 2 Vin (max) (V) 40 Vin (min) (V) 4 Vout (max) (V) 28 Vout (min) (V) 0.8 Features Enable, Frequency synchronization, Light Load Efficiency, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Tracking, UVLO adjustable EMI features Spread Spectrum Control mode current mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.00004 Duty cycle (max) (%) 98
Rating Automotive Topology Buck Iout (max) (A) 2 Vin (max) (V) 40 Vin (min) (V) 4 Vout (max) (V) 28 Vout (min) (V) 0.8 Features Enable, Frequency synchronization, Light Load Efficiency, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Tracking, UVLO adjustable EMI features Spread Spectrum Control mode current mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.00004 Duty cycle (max) (%) 98
WSON (DPR) 10 16 mm² (4 mm × 4 mm) HSOIC (DDA) 8 29.4 mm² (4.9 mm × 6 mm)
  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40 °C to 125 °C ambient operating temperature range
    • Device HBM ESD classification level H1C
    • Device CDM ESD classification level C4A
  • 4V to 40V input range
  • 2A continuous output current
  • Ultra-low 40µA operating quiescent current
  • 90mΩ high-side MOSFET
  • 75ns minimum switch-on time
  • Current mode control
  • Adjustable switching frequency from 200kHz to 2.5MHz
  • Frequency synchronization to external clock
  • Spread spectrum option for reduced EMI
  • Fixed 5V output option
  • Internal compensation for ease of use
  • High duty cycle operation supported
  • Precision enable input
  • 1µA shutdown current
  • External soft start
  • Thermal, overvoltage, and short protection
  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40 °C to 125 °C ambient operating temperature range
    • Device HBM ESD classification level H1C
    • Device CDM ESD classification level C4A
  • 4V to 40V input range
  • 2A continuous output current
  • Ultra-low 40µA operating quiescent current
  • 90mΩ high-side MOSFET
  • 75ns minimum switch-on time
  • Current mode control
  • Adjustable switching frequency from 200kHz to 2.5MHz
  • Frequency synchronization to external clock
  • Spread spectrum option for reduced EMI
  • Fixed 5V output option
  • Internal compensation for ease of use
  • High duty cycle operation supported
  • Precision enable input
  • 1µA shutdown current
  • External soft start
  • Thermal, overvoltage, and short protection

The LMR14020-Q1 is a 40V, 2A step-down regulator with an integrated high-side MOSFET. With a wide input range from 4V to 40V, the device is designed for various applications from industrial to automotive for power conditioning from unregulated sources. An extended family is available in 3.5A and 5A options in pin-to-pin compatible packages, including LMR14030-Q1 and LMR14050-Q1. The regulator quiescent current is 40µA in sleep mode, which is designed for battery powered systems. An ultra-low 1µA current in shutdown mode can further prolong battery life. A wide adjustable switching frequency range allows either efficiency or external component size to be optimized. Internal loop compensation means that the user is free from the tedious task of loop compensation design. This internal loop compensation also minimizes the external components of the device. A precision enable input allows simplification of regulator control and system power sequencing. The device also has built-in protection features such as cycle-by-cycle current limit, thermal sensing and shutdown due to excessive power dissipation, and output overvoltage protection.

The LMR14020-Q1 is available in an 8-pin, HSOIC or 10-pin, WSON package with exposed pad for low thermal resistance.

The LMR14020-Q1 is a 40V, 2A step-down regulator with an integrated high-side MOSFET. With a wide input range from 4V to 40V, the device is designed for various applications from industrial to automotive for power conditioning from unregulated sources. An extended family is available in 3.5A and 5A options in pin-to-pin compatible packages, including LMR14030-Q1 and LMR14050-Q1. The regulator quiescent current is 40µA in sleep mode, which is designed for battery powered systems. An ultra-low 1µA current in shutdown mode can further prolong battery life. A wide adjustable switching frequency range allows either efficiency or external component size to be optimized. Internal loop compensation means that the user is free from the tedious task of loop compensation design. This internal loop compensation also minimizes the external components of the device. A precision enable input allows simplification of regulator control and system power sequencing. The device also has built-in protection features such as cycle-by-cycle current limit, thermal sensing and shutdown due to excessive power dissipation, and output overvoltage protection.

The LMR14020-Q1 is available in an 8-pin, HSOIC or 10-pin, WSON package with exposed pad for low thermal resistance.
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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos LMR14020-Q1 SIMPLE SWITCHER® Power Converter, 40V, 2A, Automotive, Step-Down Converter With 40µA IQ datasheet (Rev. B) PDF | HTML 20/12/2024
Nota sobre la aplicación Design Consideration on Boot Resistor in Buck Converter PDF | HTML 15/05/2023
Nota sobre la aplicación Reduce Conducted EMI in Automotive Buck Converter Applications 31/07/2019
Nota sobre la aplicación How to Evaluate Junction Temperature Properly with Thermal Metrics (Rev. B) 29/03/2019
Nota sobre la aplicación How SYNC Logic Affects EMI Performance for Dual-Channel Buck Converters 27/04/2018
Nota sobre la aplicación Low Conducted EMI Power Solution for Automotive Digital Cockpit With LMR14050 an 7/02/2018
Nota sobre la aplicación Design Feedforward Capacitor for LMR14020 20/12/2017
Nota sobre la aplicación How to Evaluate the Maximum Inductor in Internal Compensation PCM Buck Converter 20/09/2017

Diseño y desarrollo

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Placa de evaluación

LMR14020QDPREVM — Módulo de evaluación del convertidor reductor LMR14020QDPR Wide Vin

El LMR14020QDPREVM es un circuito completamente ensamblado y probado para evaluar el convertidor reductor LMR14020QDPRRQ1. El LMR14020QDPREVM funciona con una entrada de 7 V a 40 V (12 V nominales) y proporciona una salida de 5.0 V/3.3 V a 2 A. La placa dispone de conectores puentes para activar o (...)
Guía del usuario: PDF
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Placa de evaluación

LMR14020SEVM — Módulo de evaluación del convertidor reductor LMR14020S

The LMR14020SEVM is a fully assembled and tested circuit for evaluating the LMR14020S Step-Down Converter. The LMR14020SEVM operates from 7V to 30V input (12V nominal) and provides a 5.0V or 3.3V output at 2A. The board also has jumper connectors to enable or disable the converter operation, change (...)

Guía del usuario: PDF
Productos y hardware compatibles
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Modelo de simulación

LMR14020S PSpice Transient Model

SNVM706.ZIP (61 KB) - Modelo PSpice
Productos y hardware compatibles
Modelo de simulación

LMR14020S Unencrypted PSpice Transient Model

SNVM818.ZIP (6 KB) - Modelo PSpice
Productos y hardware compatibles
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
WSON (DPR) 10 Ultra Librarian
HSOIC (DDA) 8 Ultra Librarian
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