Datasheet Texas Instruments LM22678-Q1 — Ficha de datos

FabricanteTexas Instruments
SerieLM22678-Q1
Datasheet Texas Instruments LM22678-Q1

INTERRUPTOR SIMPLE 5A, regulador de voltaje reductor con habilitación de precisión

Hojas de datos

LM22678/-Q1 42-V, 5-A SIMPLE SWITCHERВ® Step-Down Voltage Regulator With Features datasheet
PDF, 1.3 Mb, Revisión: L, Archivo publicado: nov 5, 2014
Extracto del documento

Precios

Estado

LM22678QTJ-5.0/NOPBLM22678QTJ-ADJ/NOPBLM22678QTJE-5.0/NOPBLM22678QTJE-ADJ/NOPB
Estado del ciclo de vidaActivo (Recomendado para nuevos diseños)Activo (Recomendado para nuevos diseños)Activo (Recomendado para nuevos diseños)Activo (Recomendado para nuevos diseños)
Disponibilidad de muestra del fabricanteNoNo

Embalaje

LM22678QTJ-5.0/NOPBLM22678QTJ-ADJ/NOPBLM22678QTJE-5.0/NOPBLM22678QTJE-ADJ/NOPB
N1234
Pin7777
Package TypeNDRNDRNDRNDR
Industry STD TermTO-263TO-263TO-263TO-263
JEDEC CodeR-MSFM-LR-MSFM-LR-MSFM-LR-MSFM-L
Package QTY10001000250250
CarrierLARGE T&RLARGE T&RSMALL T&RSMALL T&R
Device MarkingLM22678LM22678QTJ-5.0LM22678
Width (mm)9.859.859.859.85
Length (mm)10.1610.1610.1610.16
Thickness (mm)2222
Pitch (mm)1.271.271.271.27
Max Height (mm)2.252.252.252.25
Mechanical DataDescargarDescargarDescargarDescargar

Paramétricos

Parameters / ModelsLM22678QTJ-5.0/NOPB
LM22678QTJ-5.0/NOPB
LM22678QTJ-ADJ/NOPB
LM22678QTJ-ADJ/NOPB
LM22678QTJE-5.0/NOPB
LM22678QTJE-5.0/NOPB
LM22678QTJE-ADJ/NOPB
LM22678QTJE-ADJ/NOPB
Control ModeVoltage ModeVoltage ModeVoltage ModeVoltage Mode
Duty Cycle(Max), %90909090
Iout(Max), A5555
Iq(Typ), mA3.43.43.43.4
Operating Temperature Range, C-40 to 125-40 to 125-40 to 125-40 to 125
Package GroupTO-263TO-263TO-263TO-263
RatingAutomotiveAutomotiveAutomotiveAutomotive
Regulated Outputs1111
Special FeaturesEnableEnableEnableEnable
Switching Frequency(Max), kHz500500500500
Switching Frequency(Min), kHz500500500500
TypeConverterConverterConverterConverter
Vin(Max), V42424242
Vin(Min), V4.54.54.54.5
Vout(Max), V37373737
Vout(Min), V1.2851.2851.2851.285

Plan ecológico

LM22678QTJ-5.0/NOPBLM22678QTJ-ADJ/NOPBLM22678QTJE-5.0/NOPBLM22678QTJE-ADJ/NOPB
RoHSObedienteObedienteObedienteObediente

Notas de aplicación

  • AN-643 EMI/RFI Board Design (Rev. B)
    PDF, 742 Kb, Revisión: B, Archivo publicado: mayo 3, 2004
    Application Note 643 EMI/RFI Board Design
  • Input and Output Capacitor Selection
    PDF, 219 Kb, Archivo publicado: sept 19, 2005
  • AN-1197 Selecting Inductors for Buck Converters (Rev. B)
    PDF, 558 Kb, Revisión: B, Archivo publicado: abr 23, 2013
    This application report provides design information to help select an off-the-shelf inductor for anycontinuous-mode buck converter application.
  • AN-2155 Layout Tips for EMI Reduction in DC/ DC Converters (Rev. A)
    PDF, 3.6 Mb, Revisión: A, Archivo publicado: abr 23, 2013
    This application note will explore how the layout of your DC/DC power supply can significantly affect theamount of EMI that it produces. It will discuss several variations of a layout analyze the results andprovide answers to some common EMI questions such whether or not to use a shielded inductor.
  • AN-1566 Techniques for Thermal Analysis of Switching Power Supply Designs (Rev. A)
    PDF, 1.4 Mb, Revisión: A, Archivo publicado: abr 23, 2013
    This application note provides thermal power analysis techniques for analyzing the power IC.
  • AN-1889 How to Measure the Loop Transfer Function of Power Supplies (Rev. A)
    PDF, 2.7 Mb, Revisión: A, Archivo publicado: abr 23, 2013
    This application report shows how to measure the critical points of a bode plot with only an audiogenerator (or simple signal generator) and an oscilloscope. The method is explained in an easy to followstep-by-step manner so that a power supply designer can start performing these measurements in a shortamount of time.
  • Semiconductor and IC Package Thermal Metrics (Rev. C)
    PDF, 201 Kb, Revisión: C, Archivo publicado: abr 19, 2016
  • AN-1997 Error Amplifier Limitations in High-Performance Regulator Applications (Rev. A)
    PDF, 153 Kb, Revisión: A, Archivo publicado: mayo 6, 2013
    The development of realistic predictions to assist the power supply engineer during the control loop design process is facilitated in this application report by appropriate small-signal and bode plot analysis, the validity of which is verified through simulation results.
  • Low EMI Layout Made SIMPLE With LM43600/1/2/3 and LM46000/1/2 (Rev. A)
    PDF, 512 Kb, Revisión: A, Archivo publicado: sept 12, 2014
    Printed Circuit Board (PCB) layout for Switched Mode Power Supplies (SMPS) is critical to achieve proper converter operation good thermal performance and excellent radiated EMI performance. Optimized board layout for low radiated EMI is made very simple by the package and pin arrangement of the SIMPLE SWITCHER Synchronous Buck Converter family LM4360x and LM4600x
  • AN-1149 Layout Guidelines for Switching Power Supplies (Rev. C)
    PDF, 82 Kb, Revisión: C, Archivo publicado: abr 23, 2013
    When designing a high frequency switching regulated power supply layout is very important. Using agood layout can solve many problems associated with these types of supplies. The problems due to a badlayout are often seen at high current levels and are usually more obvious at large input to output voltagedifferentials. Some of the main problems are loss of regulation at high output current
  • AN-1229 SIMPLE SWITCHER PCB Layout Guidelines (Rev. C)
    PDF, 374 Kb, Revisión: C, Archivo publicado: abr 23, 2013
    This application report provides SIMPLE SWITCHER™ PCB layout guidelines.
  • AN-2162 Simple Success With Conducted EMI From DC-DC Converters (Rev. C)
    PDF, 2.5 Mb, Revisión: C, Archivo publicado: abr 24, 2013
    Electromagnetic Interference (EMI) is an unwanted effect between two electrical systems as a result ofeither electromagnetic radiation or electromagnetic conduction. EMI is the major adverse effect caused bythe application of switch-mode power supplies (SMPS). In switching power supplies EMI noise isunavoidable due to the switching actions of the semiconductor devices and resulting disconti
  • AN-1246 Stresses in Wide Input DC-DC Converters (Rev. C)
    PDF, 427 Kb, Revisión: C, Archivo publicado: abr 23, 2013
    This application note discusses stresses in wide input DC-DC converters.
  • AN-1520 A Guide to Board Layout for Best Thermal Resistance for Exposed Packages (Rev. B)
    PDF, 9.2 Mb, Revisión: B, Archivo publicado: abr 23, 2013
    This thermal application report provides guidelines for the optimal board layout to achieve the best thermalresistance for exposed packages. The thermal resistance between junction-to-ambient (ОёJA) is highlydependent on the PCB (Printed Circuit Board) design factors. This becomes more critical for packageshaving very low thermal resistance between junction-to-case such as exposed pad TSSOP

Linea modelo

Clasificación del fabricante

  • Semiconductors> Power Management> Non-isolated DC/DC Switching Regulator> Step-Down (Buck)> Buck Converter (Integrated Switch)