Home Energiemanagement DC/DC-Schaltregler DC/DC-Wandler
Home
Energiemanagement
DC/DC-Schaltregler
DC/DC-Wandler

LM22673-Q1

AKTIV

SIMPLE SWITCHER®Abwärtsspannungsregler, 3 A, mit einstellbarem Softstart und Strombegrenzung

Jetzt bestellen
Datenblatt

Eine neuere Version dieses Produkts ist verfügbar

open-in-new Alternativen vergleichen
Selbe Funktionalität wie der verglichene Baustein bei abweichender Anschlussbelegung.
LMQ66430-Q1 AKTIV Synchroner Abwärtswandler, 36 V, 3 A, mit niedriger EMI und 1,5-µA-Ruhestrom für die Automobilindust Integrated input bypass capacitor and boot cap for lower EMI and smaller footprint, dual-random spread spectrum and lower IQ.

LM22673-Q1

AKTIV
Jetzt bestellen

Produktdetails

Rating Automotive Topology Buck Iout (max) (A) 3 Vin (max) (V) 42 Vin (min) (V) 4.5 Vout (max) (V) 37 Vout (min) (V) 1.285 Features Adjustable current limit, Adjustable soft start, Enable, Overcurrent protection Control mode Voltage mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.0034 Duty cycle (max) (%) 90
Rating Automotive Topology Buck Iout (max) (A) 3 Vin (max) (V) 42 Vin (min) (V) 4.5 Vout (max) (V) 37 Vout (min) (V) 1.285 Features Adjustable current limit, Adjustable soft start, Enable, Overcurrent protection Control mode Voltage mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.0034 Duty cycle (max) (%) 90
HSOIC (DDA) 8 29.4 mm² (4.9 mm × 6 mm) TO-263 (NDR) 7 142.3416 mm² (10.16 mm × 14.01 mm)
  • Wide Input Voltage Range: 4.5 V to 42 V
  • Internally Compensated Voltage Mode Control
  • Stable with Low ESR Ceramic Capacitors
  • 120 mΩ N-Channel MOSFET PFM Package
  • 100 mΩ N-Channel MOSFET SO PowerPAD
    Package
  • Output Voltage Options:
    -ADJ (Outputs as Low as 1.285 V)
    -5.0 (Output Fixed to 5 V)
  • ±1.5% Feedback Reference Accuracy
  • Switching Frequency of 500 kHz
  • –40°C to 125°C Operating Junction
    Temperature Range
  • Adjustable Soft-Start
  • Adjustable Current Limit
  • Integrated Boot-Strap Diode
  • Fully Webench® Enabled
  • LM22673-Q1 is an Automotive Grade Product
    that is AEC-Q100 Grade 1 Qualified (–40°C to +125°C
    Junction Temperature)
  • SO PowerPAD (Exposed Pad)
  • PFM (Exposed Pad)
  • Wide Input Voltage Range: 4.5 V to 42 V
  • Internally Compensated Voltage Mode Control
  • Stable with Low ESR Ceramic Capacitors
  • 120 mΩ N-Channel MOSFET PFM Package
  • 100 mΩ N-Channel MOSFET SO PowerPAD
    Package
  • Output Voltage Options:
    -ADJ (Outputs as Low as 1.285 V)
    -5.0 (Output Fixed to 5 V)
  • ±1.5% Feedback Reference Accuracy
  • Switching Frequency of 500 kHz
  • –40°C to 125°C Operating Junction
    Temperature Range
  • Adjustable Soft-Start
  • Adjustable Current Limit
  • Integrated Boot-Strap Diode
  • Fully Webench® Enabled
  • LM22673-Q1 is an Automotive Grade Product
    that is AEC-Q100 Grade 1 Qualified (–40°C to +125°C
    Junction Temperature)
  • SO PowerPAD (Exposed Pad)
  • PFM (Exposed Pad)

The LM22673 switching regulator provides all of the functions necessary to implement an efficient high voltage step-down (buck) regulator using a minimum of external components. This easy to use regulator incorporates a 42 V N-channel MOSFET switch capable of providing up to 3 A of load current. Excellent line and load regulation along with high efficiency (> 90%) are featured. Voltage mode control offers short minimum on-time, allowing the widest ratio between input and output voltages. Internal loop compensation means that the user is free from the tedious task of calculating the loop compensation components. Fixed 5 V output and adjustable output voltage options are available. A switching frequency of 500 kHz allows for small external components and good transient response. An adjustable soft-start feature is provided through the selection of a single external capacitor. In addition, the switch current limit can be programmed with a single external resistor, allowing solution optimization. The LM22673 device also has built-in thermal shutdown, and current limiting to protect against accidental overloads.

The LM22673 device is a member of Texas Instruments’ SIMPLE SWITCHER® family. The SIMPLE SWITCHER® concept provides for an easy to use complete design using a minimum number of external components and the TI WEBENCH® design tool. TI’s WEBENCH® tool includes features such as external component calculation, electrical simulation, thermal simulation, and Build-It boards for easy design-in.

The LM22673 switching regulator provides all of the functions necessary to implement an efficient high voltage step-down (buck) regulator using a minimum of external components. This easy to use regulator incorporates a 42 V N-channel MOSFET switch capable of providing up to 3 A of load current. Excellent line and load regulation along with high efficiency (> 90%) are featured. Voltage mode control offers short minimum on-time, allowing the widest ratio between input and output voltages. Internal loop compensation means that the user is free from the tedious task of calculating the loop compensation components. Fixed 5 V output and adjustable output voltage options are available. A switching frequency of 500 kHz allows for small external components and good transient response. An adjustable soft-start feature is provided through the selection of a single external capacitor. In addition, the switch current limit can be programmed with a single external resistor, allowing solution optimization. The LM22673 device also has built-in thermal shutdown, and current limiting to protect against accidental overloads.

The LM22673 device is a member of Texas Instruments’ SIMPLE SWITCHER® family. The SIMPLE SWITCHER® concept provides for an easy to use complete design using a minimum number of external components and the TI WEBENCH® design tool. TI’s WEBENCH® tool includes features such as external component calculation, electrical simulation, thermal simulation, and Build-It boards for easy design-in.
filter Andere DC/DC-Wandler suchen
Herunterladen Video mit Transkript ansehen Video

Technische Dokumentation

Keine Ergebnisse gefunden. Bitte geben Sie einen anderen Begriff ein und versuchen Sie es erneut.
Alle anzeigen 20
Top-Dokumentation Typ Titel Format-Optionen Neueste englische Version herunterladen Datum
* Datenblatt LM22673/-Q1 42 V, 3 A SIMPLE SWITCHER®, Step-Down Voltage Regulator with Features datasheet (Rev. O) PDF | HTML 05.11.2014
Anwendungshinweis SIMPLE SWITCHER Regulators Take Over Automotive Applications (Rev. B) PDF | HTML 09.10.2024
Anwendungshinweis Semiconductor and IC Package Thermal Metrics (Rev. D) PDF | HTML 25.03.2024
Anwendungshinweis Low EMI Layout Made SIMPLE With LM43600/1/2/3 and LM46000/1/2 (Rev. A) 12.09.2014
Anwendungshinweis AN-1997 Error Amplifier Limitations in High-Performance Regulator Applications (Rev. A) 06.05.2013
Anwendungshinweis AN-1533 Overvoltage Protection Circuit for Automotive Load Dump (Rev. B) 06.05.2013
Anwendungshinweis AN-1797 TO-263 THIN Package (Rev. A) 24.04.2013
Anwendungshinweis AN-2162 Simple Success With Conducted EMI From DC-DC Converters (Rev. C) 24.04.2013
Anwendungshinweis AN-1566 Techniques for Thermal Analysis of Switching Power Supply Designs (Rev. A) 23.04.2013
Anwendungshinweis AN-2155 Layout Tips for EMI Reduction in DC/ DC Converters (Rev. A) 23.04.2013
Anwendungshinweis AN-2020 Thermal Design By Insight, Not Hindsight (Rev. C) 23.04.2013
Anwendungshinweis AN-1229 SIMPLE SWITCHER PCB Layout Guidelines (Rev. C) 23.04.2013
Anwendungshinweis AN-1149 Layout Guidelines for Switching Power Supplies (Rev. C) 23.04.2013
Anwendungshinweis AN-1889 How to Measure the Loop Transfer Function of Power Supplies (Rev. A) 23.04.2013
Anwendungshinweis AN-1197 Selecting Inductors for Buck Converters (Rev. B) 23.04.2013
Anwendungshinweis AN-1246 Stresses in Wide Input DC-DC Converters (Rev. C) 23.04.2013
Anwendungshinweis AN-1520 A Guide to Board Layout for Best Thermal Resistance for Exposed Packages (Rev. B) 23.04.2013
Anwendungshinweis Input and Output Capacitor Selection 19.09.2005
Weitere Dokumente SEM1600 Topic 4: Constructing Your Power Supply – Layout Considerations 12.07.2005
Anwendungshinweis AN-643 EMI/RFI Board Design (Rev. B) 03.05.2004

Design und Entwicklung

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

Simulationsmodell

LM22673-5.0 PSpice Average Model

SNVM181.ZIP (54 KB) - PSpice-Modell
Unterstützte Produkte und Hardware
Simulationsmodell

LM22673-5.0 PSpice Transient Model

SNVM182.ZIP (221 KB) - PSpice-Modell
Unterstützte Produkte und Hardware
Simulationsmodell

LM22673-5.0 Unencrypted PSpice Average Model

SNVM896.ZIP (1 KB) - PSpice-Modell
Unterstützte Produkte und Hardware
Simulationsmodell

LM22673-5.0 Unencrypted PSpice Transient Model

SNVM898.ZIP (4 KB) - PSpice-Modell
Unterstützte Produkte und Hardware
Simulationsmodell

LM22673-ADJ PSpice Average Model

SNVM279.ZIP (53 KB) - PSpice-Modell
Unterstützte Produkte und Hardware
Simulationsmodell

LM22673-ADJ PSpice Transient Model

SNVM280.ZIP (208 KB) - PSpice-Modell
Unterstützte Produkte und Hardware
Simulationsmodell

LM22673-ADJ Unencrypted PSpice Average Model

SNVM895.ZIP (1 KB) - PSpice-Modell
Unterstützte Produkte und Hardware
Simulationsmodell

LM22673-ADJ Unencrypted PSpice Transient Model

SNVM897.ZIP (4 KB) - PSpice-Modell
Unterstützte Produkte und Hardware
Gehäuse Pins CAD-Symbole, Footprints und 3D-Modelle
HSOIC (DDA) 8 Ultra Librarian
TO-263 (NDR) 7 Ultra Librarian
Es gelten die allgemeinen Geschäftsbedingungen von TI für Evaluierungsartikel.

Bestellen & Qualität

Support und Schulungen

TI E2E™-Foren mit technischem Support von TI-Ingenieuren

Alle Forenthemen auf Englisch anzeigen

Inhalte werden ohne Gewähr von TI und der Community bereitgestellt. Sie stellen keine Spezifikationen von TI dar. Siehe Nutzungsbedingungen.

Bei Fragen zu den Themen Qualität, Gehäuse oder Bestellung von TI-Produkten siehe TI-Support. ​​​​​​​​​​​​​​

Videos