Datasheet Texas Instruments LM2577T-ADJ/NOPB — Ficha de datos

FabricanteTexas Instruments
SerieLM2577
Numero de parteLM2577T-ADJ/NOPB
Datasheet Texas Instruments LM2577T-ADJ/NOPB

SIMPLE SWITCHER® 3.5V a 40V, 3A Regulador elevador de bajo conteo de componentes 5-TO-220 -40 a 125

Hojas de datos

LM1577/LM2577 SIMPLE SWITCHER Step-Up Voltage Regulator datasheet
PDF, 4.0 Mb, Revisión: D, Archivo publicado: abr 3, 2013
Extracto del documento

Precios

Estado

Estado del ciclo de vidaActivo (Recomendado para nuevos diseños)
Disponibilidad de muestra del fabricante

Embalaje

Pin555
Package TypeKCKCKC
Industry STD TermTO-220TO-220TO-220
JEDEC CodeR-PSFM-TR-PSFM-TR-PSFM-T
Package QTY454545
CarrierTUBETUBETUBE
Device MarkingP+-ADJLM2577T
Width (mm)8.518.518.51
Length (mm)10.1610.1610.16
Thickness (mm)4.584.584.58
Pitch (mm)1.71.71.7
Max Height (mm)4.74.74.7
Mechanical DataDescargarDescargarDescargar

Paramétricos

Duty Cycle(Max)95 %
Iq(Typ)10 mA
Operating Temperature Range-40 to 125 C
Package GroupTO-220
RatingCatalog
Regulated Outputs1
Switch Current Limit(Typ)3 A
Switching Frequency(Max)52 kHz
Switching Frequency(Min)52 kHz
TypeConverter
Vin(Max)40 V
Vin(Min)3.5 V
Vout(Max)15 V
Vout(Min)1.23 V

Plan ecológico

RoHSObediente
Pb gratis

Notas de aplicación

  • AN-777 LM2577 Three Output, Isolated Flyback Regulator (Rev. B)
    PDF, 278 Kb, Revisión: B, Archivo publicado: abr 23, 2013
    Many voltage regulator applications require multiple outputs, such as a computer's power supply or aregulator used to meet the voltage requirements inside an automobile. Some of these applications requireisolation between the regulator's input and output for protection and separate ground specifications. Usingthese criteria, a LM2577 simple switcher flyback regulator has been designed with m
  • 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
  • AN-776 20-W SIMPLE SWITCHER Forward Converter (Rev. A)
    PDF, 593 Kb, Revisión: A, Archivo publicado: abr 23, 2013
    This application note provides information about the 20-watt simple switcher forward converter.
  • Working With Boost Converters
    PDF, 159 Kb, Archivo publicado: jun 15, 2015
    This brief note highlights some of the more common pitfalls when using boost regulators. These includemaximum achievable output current and voltage, short circuit behavior and basic layout issues. It isassumed that the reader is familiar with the basic operation of a boost regulator.
  • Input and Output Capacitor Selection
    PDF, 219 Kb, Archivo publicado: sept 19, 2005
  • Basic Calculation of a Boost Converter's Power Stage (Rev. C)
    PDF, 186 Kb, Revisión: C, Archivo publicado: enero 8, 2014
    This application note gives the equations to calculate the power stage of a boost converter built with an IC with integrated switch and operating in continuous conduction mode. It is not intended to give details on the functionality of a boost converter (see Reference 1) or how to compensate a converter. See the references at the end of this document if more detail is needed.
  • Negative Buck Switching Regulator (using LM258x)
    PDF, 122 Kb, Archivo publicado: marzo 21, 2007
  • 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-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
  • Understanding Boost Power Stages In Switchmode Power Supplies
    PDF, 149 Kb, Archivo publicado: marzo 4, 1999
    A switching power supply consists of the power stage and the control circuit. The power stage performs the basic power conversion from the input voltage to the output voltage and includes switches and the output filter. This report addresses the boost power stage only and does not cover control circuits. The report includes detailed steady-stage and small-signal analysis of the boost power stage o
  • 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-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
  • Switching Regulator Fundamentals (Rev. A)
    PDF, 324 Kb, Revisión: A, Archivo publicado: sept 23, 2016
    Theswitchingregulatoris increasingin popularitybecauseit offersthe advantagesof higherpowerconversionefficiencyand increaseddesignflexibility(multipleoutputvoltagesof differentpolaritiescan begeneratedfroma singleinputvoltage).

Linea modelo

Clasificación del fabricante

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

Otros nombres:

LM2577TADJ/NOPB, LM2577T ADJ/NOPB