Datasheet Linear Technology LT1074IT#PBF — 数据表

制造商Linear Technology
系列LT1074
零件号LT1074IT#PBF

降压开关稳压器

数据表

Datasheet LT1074, LT1076
PDF, 189 Kb, 语言: en, 文件上传: Sep 3, 2017, 页数: 16
Step-Down Switching Regulator
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价格

打包

PackageTO-220
Package CodeT
Package Index05-08-1421 (Std)

参数化

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

生态计划

RoHSCompliant

其他选择

LT1074HV LT1076 LT1076 LT1076HV

应用须知

  • Step Down Switching Regulators &mdash AN35
    PDF, 6.2 Mb, 档案已发布: Aug 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.
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  • LT1074/LT1076 Design Manual &mdash AN44
    PDF, 477 Kb, 档案已发布: Sep 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.
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  • Efficiency and Power Characteristics of Switching Regulator Circuits &mdash AN46
    PDF, 2.6 Mb, 档案已发布: 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, 档案已发布: 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.
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设计须知

  • No Design Switching Regulator 5V, 5A Buck (Step Down) Regulator &mdash DN48
    PDF, 70 Kb, 档案已发布: Aug 1, 1991
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  • No Design Switiching Regulator 5V Buck-Boost (Positive to Negative) Regulator &mdash DN49
    PDF, 71 Kb, 档案已发布: Sep 1, 1991
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模型线

制造商分类

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

其他名称:

LT1074ITPBF, LT1074IT PBF