Startseite Energiemanagement AC/DC- und DC/DC-Wandler (integrierter FET)
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AC/DC- und DC/DC-Wandler (integrierter FET)

LMR14020-Q1

AKTIV

SIMPLE SWITCHER®-Abwärtsspannungswandler mit 40 V, 2 A, 2,2 MHz und 40 μA IQ für die Automobilindust

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Selbe Funktionalität wie der verglichene Baustein bei abweichender Anschlussbelegung
LMR33620-Q1 AKTIV Synchroner Abwärtsspannungswandler, 3,8 bis 36 V, 2 A Smaller footprint, higher efficiency, lower IQ and lower EMI.

LMR14020-Q1

AKTIV
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Produktdetails

Rating Automotive Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 2 Vin (min) (V) 4 Vin (max) (V) 40 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2500 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 Vout (min) (V) 0.8 Vout (max) (V) 28 Iq (typ) (µA) 40 Duty cycle (max) (%) 98
Rating Automotive Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 2 Vin (min) (V) 4 Vin (max) (V) 40 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2500 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 Vout (min) (V) 0.8 Vout (max) (V) 28 Iq (typ) (µA) 40 Duty cycle (max) (%) 98
HSOIC (DDA) 8 29.4 mm² 4.9 x 6 WSON (DPR) 10 16 mm² 4 x 4
  • 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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Technische Dokumentation

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Typ Titel Datum
* Data sheet LMR14020-Q1 SIMPLE SWITCHER® Power Converter, 40V, 2A, Automotive, Step-Down Converter With 40µA IQ datasheet (Rev. B) PDF | HTML 20 Dez 2024
Application note Design Consideration on Boot Resistor in Buck Converter PDF | HTML 15 Mai 2023
Application note Reduce Conducted EMI in Automotive Buck Converter Applications 31 Jul 2019
Application note How to Evaluate Junction Temperature Properly with Thermal Metrics (Rev. B) 29 Mär 2019
Application note How SYNC Logic Affects EMI Performance for Dual-Channel Buck Converters 27 Apr 2018
Application note Low Conducted EMI Power Solution for Automotive Digital Cockpit With LMR14050 an 07 Feb 2018
Application note Design Feedforward Capacitor for LMR14020 20 Dez 2017
Application note How to Evaluate the Maximum Inductor in Internal Compensation PCM Buck Converter 20 Sep 2017
EVM User's guide LMR14020QDPR EVM User Guide 08 Feb 2016

Design und Entwicklung

Weitere Bedingungen oder erforderliche Ressourcen enthält gegebenenfalls die Detailseite, die Sie durch Klicken auf einen der unten stehenden Titel erreichen.

Evaluierungsplatine

LMR14020QDPREVM — LMR14020QDPR Abwärtswandler mit großem Vin – Evaluierungsmodul

The LMR14020QDPREVM is a fully assembled and tested circuit for evaluating the LMR14020QDPRRQ1 Step-Down Converter. The LMR14020QDPREVM operates from 7V to 40V input (12V nominal) and provides a 5.0V or 3.3V output at 2A. The board has jumper connectors to enable or disable the converter (...)
Benutzerhandbuch: PDF
Nicht verfügbar auf TI.com
Evaluierungsplatine

LMR14020SEVM — Evaluierungsmodul für Abwärtswandler 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 (...)

Benutzerhandbuch: PDF
Nicht verfügbar auf TI.com
Simulationsmodell

LMR14020S PSpice Transient Model

SNVM706.ZIP (61 KB) - PSpice Model
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Simulationsmodell

LMR14020S Unencrypted PSpice Transient Model

SNVM818.ZIP (6 KB) - PSpice Model
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Gehäuse Pins CAD-Symbole, Footprints und 3D-Modelle
HSOIC (DDA) 8 Ultra Librarian
WSON (DPR) 10 Ultra Librarian
Es gelten die allgemeinen Geschäftsbedingungen von TI für Evaluierungsartikel.

Bestellen & Qualität

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  • Bausteinkennzeichnung
  • Blei-Finish/Ball-Material
  • MSL-Rating / Spitzenrückfluss
  • MTBF-/FIT-Schätzungen
  • Materialinhalt
  • Qualifikationszusammenfassung
  • Kontinuierliches Zuverlässigkeitsmonitoring
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