Datasheet Linear Technology LT1074IT7#PBF — Ficha de datos

FabricanteLinear Technology
SerieLT1074
Numero de parteLT1074IT7#PBF

Regulador de conmutación reductor

Hojas de datos

Datasheet LT1074, LT1076
PDF, 189 Kb, Idioma: en, Archivo subido: sept 3, 2017, Páginas: 16
Step-Down Switching Regulator
Extracto del documento

Precios

Embalaje

PackageTO-220
Package CodeT7
Package Index05-08-1422 (Std)

Paramétricos

ArchitectureConstant Frequency Current Mode
Design ToolsLTspice File
Export Controlno
Frequency100 kHz
Integrated Inductorno
Ishutdown140 µA
Isupply8.5 mA
Max Phases1
Monolithicyes
Number of Outputs1
Operating Temperature Range-40 to 85 °C
Output Current4.4 A
Polyphaseno
Switch Current6.5 A
Synchronousno
TopologyBuck, Inverting
Vin Max45 V
Vin Min7.3 V
Vout Max35 V
Vout Maximum.85Vin
Vout Min2.21 V
Vswitch Max65 V

Plan ecológico

RoHSObediente

Otras opciones

LT1074HV LT1076 LT1076 LT1076HV

Notas de aplicación

  • Step Down Switching Regulators &mdash AN35
    PDF, 6.2 Mb, Archivo publicado: agosto 1, 1989
    Discusses the LT1074, an easily applied step-down regulator IC. Basic concepts and circuits are described along with more sophisticated applications. Six appended sections cover LT1074 circuitry detail, inductor and discrete component selection, current measuring techniques, efficiency considerations and other topics.
    Extracto del documento
  • LT1074/LT1076 Design Manual &mdash AN44
    PDF, 477 Kb, Archivo publicado: sept 1, 1991
    This note discusses the use of the LT1074 and LT1076 high efficiency switching regulators. These regulators are specifically designed for ease of use. This application note is intended to eliminate the most common errors that customers make when using switching regulators as well as offering insight into the inner workings of switching designs. There is an entirely new treatment of inductor design based upon simple mathematical formulas that yield direct results. There are extensive tutorial sections devoted to the care and feeding of the Positive Step- Down (Buck) Converter, the Tapped Inductor Buck Converter, the Positive-to-Negative Converter and the Negative Boost Converter. Additionally, many troubleshooting hints are included as well as oscilloscope techniques, soft-start architectures, and micropower shutdown and EMI suppression methods.
    Extracto del documento
  • Efficiency and Power Characteristics of Switching Regulator Circuits &mdash AN46
    PDF, 2.6 Mb, Archivo publicado: nov 1, 1991
    Efficiency varies for different DC/DC converters. This application note compares the efficiency characteristics of some of the more popular types. Step-up, step-down, flyback, negative-to-positive, and positive-to-negative are shown. Appended sections discuss how to select the proper aluminum electrolytic capacitor and explain power switch and output diode loss calculations.
  • Signal Sources, Conditioners and Power Circuitry Circuits of the Fall, 2004 &mdash AN98
    PDF, 886 Kb, Archivo publicado: nov 19, 2004
    Eighteen circuits are presented in this compilation. Signal sources include a voltage controlled current source, an amplitude/frequency stabilized sine wave oscillator, a versatile, 0V to 50V wideband level shift and four sub-nanosecond pulse generators with risetimes as low as 20ps. Five signal conditioners appear; a unique, single positive rail powered amplifier with output to (and below) zero volts, a milliohmmeter, a 0.02% accurate instrumentation amplifier with 120dB CMRR at 125VCM, a 100MHz switch with 5mV control channel feedthrough and a 5V powered, 15ppm linearity quartz stabilized V→F, converter. The power circuits section features a Xenon flashlamp supply, two 5V powered, 0V to 300V DC/DC converters, a fixed 200V output circuit for APD bias, a 100W 0V to 500V, 28V powered converter and a high current paralleling scheme for linear regulators. Two appended sections consider measurement technique and connection practice in sub-nanosecond circuits.
    Extracto del documento

Notas de Diseño

  • No Design Switching Regulator 5V, 5A Buck (Step Down) Regulator &mdash DN48
    PDF, 70 Kb, Archivo publicado: agosto 1, 1991
    Extracto del documento
  • No Design Switiching Regulator 5V Buck-Boost (Positive to Negative) Regulator &mdash DN49
    PDF, 71 Kb, Archivo publicado: sept 1, 1991
    Extracto del documento

Linea modelo

Clasificación del fabricante

  • Power Management > Switching Regulator > Step-Down (Buck) Regulators > High Input Voltage Buck | Internal Power Switch Buck
  • Power Management > Switching Regulator > Inverting Regulators

Otros nombres:

LT1074IT7PBF, LT1074IT7 PBF