Datasheet Linear Technology LTC3880IUJ#TRPBF — Ficha de datos

FabricanteLinear Technology
SerieLTC3880
Numero de parteLTC3880IUJ#TRPBF

Controlador DC / DC reductor PolyPhase de salida dual con gestión de sistema de alimentación digital

Hojas de datos

LTC3880/LTC3880-1: Dual Output PolyPhase Step-Down DC/DC Controller with Digital Power System Management Data Sheet
PDF, 1.7 Mb, Archivo subido: sept 24, 2017
Extracto del documento

Precios

Embalaje

Package6x6 QFN-40
Package CodeUJ
Package Index05-08-1728

Paramétricos

ADC16-Bit
DAC12-Bit
Demo BoardsDC1590B-B,DC1590B-A,DC1753A-A,DC1709A,DC1962C,DC2052A,DC1740A-A,DC1740A-B,DC1962C-KIT,DC2088A,DC2089A-A,DC2089A-B,DC1753B-A,DC1753B-B
Design ToolsLTspice File,LTpowerCAD File,LTpowerPlay ,Linduino File
Export Controlno
FeaturesBurst Mode, Differential Remote Sense, PolyPhase, PMBus, I2C Control, EEPROM, ADC, DCR Current Sense, Sequencing, Margining, Tracking, External Synchronization
FunctionDC/DC Regulator With Power System Management
I/OPMBus/SMBus/I2C
Isupply20 mA
MonitorsVin, Iin, Vout, Iout, Temperature and Faults
Number of Outputs2
Operating Temperature Range-40 to 85 °C
Supply Voltage Range4.5V to 24V
Vin Max24 V
Vin Min4.5 V

Plan ecológico

RoHSObediente

Notas de aplicación

  • Implementing Robust PMBus System Software for the LTC3880 &mdash AN135
    PDF, 126 Kb, Archivo publicado: abr 6, 2012
    The LTC3880 is a dual output PolyPhase step-down DC/DC controller with integrated digital power system management. The LTC3880 can easily be controlled through a PMBus interface, which builds upon I2C/IIC at speeds up to 400kHz. System telemetry data can be obtained quickly and painlessly with simple polling functions. This exposes all important and critical information to the system developer such as the voltage and current readings for the input and both outputs, temperature, fault conditions, general status information, and more.
    Extracto del documento
  • Accurate Temperature Sensing with an External P-N Junction &mdash AN137
    PDF, 540 Kb, Archivo publicado: sept 20, 2012
    Many Linear Technology devices use an external PNP transistor to sense temperature. Common examples are LTC3880, LTC3883 and LTC2974. Accurate temperature sensing depends on proper PNP selection, layout, and device configuration. This application note reviews the theory of temperature sensing and gives practical advice on implementation.
    Extracto del documento
  • Overview of the EEPROM in LTC PSM Devices &mdash AN145
    PDF, 3.0 Mb, Archivo publicado: mayo 10, 2014
    Extracto del documento
  • Power System Management Addressing &mdash AN152
    PDF, 169 Kb, Archivo publicado: jul 12, 2016
    Extracto del documento
  • Linduino for Power System Management &mdash AN153
    PDF, 1.3 Mb, Archivo publicado: feb 24, 2016
    Extracto del documento
  • Fault Log Decoding with Linduino PSM &mdash AN155
    PDF, 230 Kb, Archivo publicado: enero 26, 2017
    Extracto del documento
  • In Flight Update with Linduino &mdash AN166
    PDF, 1.1 Mb, Archivo publicado: abr 10, 2017
    Extracto del documento

Artículos

  • Dual Output DC/DC Controller Combines Digital Power System Management with Analog Control Loop for ±0.5% VOUT Accuracy &mdash LT Journal
    PDF, 3.8 Mb, Archivo publicado: enero 20, 2012
    Extracto del documento

Linea modelo

Clasificación del fabricante

  • Power Management > Switching Regulator > Step-Down (Buck) Regulators > Multiple Output Buck | External Power Switch Buck Controllers
  • Power Management > Switching Regulator > Digitally Programmable Regulators
  • Monitor, Control and Protection > Digital Power System Management > DC/DC Regulator With Power System Management

Otros nombres:

LTC3880IUJTRPBF, LTC3880IUJ TRPBF