Datasheet Texas Instruments LMR70503TM/NOPB — Ficha de datos

FabricanteTexas Instruments
SerieLMR70503
Numero de parteLMR70503TM/NOPB
Datasheet Texas Instruments LMR70503TM/NOPB

2.8V a 5.5V, 300mA Regulador de voltaje de salida negativo Buck / Boost 8-DSBGA -40 a 125

Hojas de datos

LMR70503 Buck-Boost Converter For Negative Output Voltage in DSBGA datasheet
PDF, 1.6 Mb, Revisión: A, Archivo publicado: abr 4, 2013
Extracto del documento

Precios

Estado

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

Embalaje

Pin8
Package TypeYFX
Industry STD TermDSBGA
JEDEC CodeR-XBGA-N
Package QTY250
CarrierSMALL T&R
Device MarkingS3
Thickness (mm).42
Pitch (mm).4
Max Height (mm).675
Mechanical DataDescargar

Paramétricos

Duty Cycle(Max)90 %
Iq(Typ)0.3 mA
Operating Temperature Range-40 to 125 C
Package GroupDSBGA
RatingCatalog
Special FeaturesEnable
Switch Current Limit(Min)0.25 A
Switch Current Limit(Typ)0.32 A
Switching Frequency(Max)1000 kHz
Switching Frequency(Min)500 kHz
TopologyInverting
TypeConverter
Vin(Max)5.5 V
Vin(Min)2.8 V
Vout(Max)-0.9 V
Vout(Min)-5.5 V

Plan ecológico

RoHSObediente

Kits de diseño y Módulos de evaluación

  • Evaluation Modules & Boards: LMR70503EVM
    LMR70503 Evaluation Module
    Estado del ciclo de vida: Activo (Recomendado para nuevos diseños)

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-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
  • Understanding Buck-Boost Power Stages in Switchmode Power Supplies (Rev. A)
    PDF, 363 Kb, Revisión: A, Archivo publicado: mayo 28, 2002
  • 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-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

Serie: LMR70503 (2)

Clasificación del fabricante

  • Semiconductors > Power Management > Non-isolated DC/DC Switching Regulator > Buck/Boost, Inverting or Split-Rail > Buck/Boost, Inverting or Split-Rail Converter (Integrated Switch)