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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
Datenblatt Jetzt bestellen

Produktdetails

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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Technische Dokumentation

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Top-Dokumentation Typ Titel Format-Optionen Neueste englische Version herunterladen Datum
* Datenblatt LMR14020-Q1 SIMPLE SWITCHER® Power Converter, 40V, 2A, Automotive, Step-Down Converter With 40µA IQ datasheet (Rev. B) PDF | HTML 20.12.2024
Anwendungshinweis Design Consideration on Boot Resistor in Buck Converter PDF | HTML 15.05.2023
Anwendungshinweis Reduce Conducted EMI in Automotive Buck Converter Applications 31.07.2019
Anwendungshinweis How to Evaluate Junction Temperature Properly with Thermal Metrics (Rev. B) 29.03.2019
Anwendungshinweis How SYNC Logic Affects EMI Performance for Dual-Channel Buck Converters 27.04.2018
Anwendungshinweis Low Conducted EMI Power Solution for Automotive Digital Cockpit With LMR14050 an 07.02.2018
Anwendungshinweis Design Feedforward Capacitor for LMR14020 20.12.2017
Anwendungshinweis How to Evaluate the Maximum Inductor in Internal Compensation PCM Buck Converter 20.09.2017

Design und Entwicklung

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Evaluierungsplatine

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Evaluierungsplatine

LMR14020SEVM — Evaluierungsmodul für Abwärtswandler LMR14020S

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Simulationsmodell

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Simulationsmodell

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Gehäuse Pins CAD-Symbole, Footprints und 3D-Modelle
WSON (DPR) 10 Ultra Librarian
HSOIC (DDA) 8 Ultra Librarian
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