Datasheet Linear Technology LT1071

ManufacturerLinear Technology
SeriesLT1071

5A and 2.5A High Efficiency Switching Regulators

Datasheets

Datasheet LT1070, LT1071
PDF, 218 Kb, Revision: E, File uploaded: Sep 3, 2017, Pages: 12
5A and 2.5A High Efficiency Switching Regulators
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Prices

Packaging

LT1071CT#06PBFLT1071CT#30PBFLT1071CT#PBFLT1071IT#PBF
N1234
PackageTO-220
Package Outline Drawing
TO-220
Package Outline Drawing
TO-220
Package Outline Drawing
TO-220
Package Outline Drawing
Package CodeTTTT
Package Index05-08-1421 (Std)05-08-1421 (Std)05-08-1421 (Std)05-08-1421 (Std)
Pin Count5555

Parametrics

Parameters / ModelsLT1071CT#06PBFLT1071CT#30PBFLT1071CT#PBFLT1071IT#PBF
Design ToolsLTspice FileLTspice FileLTspice FileLTspice File
Export Controlnononono
Frequency, kHz40404040
Ishutdown, µA100100100100
Isupply, mA6666
Monolithicyesyesyesyes
Number of Outputs1111
Operating Temperature Range, °C0 to 700 to 700 to 70-40 to 85
Switch Current, A2.52.52.52.5
Synchronousnononono
TopologyBoost, Flyback, SepicBoost, Flyback, SepicBoost, Flyback, SepicBoost, Flyback, Sepic
Vin Max, V40404040
Vin Min, V3333
Vin Min Startup, V3333
Vout Max, V40404040
Vout Min, V1.2441.2441.2441.244
Vswitch Max, V65656565

Eco Plan

LT1071CT#06PBFLT1071CT#30PBFLT1071CT#PBFLT1071IT#PBF
RoHSCompliantCompliantCompliantCompliant

Other Options

LT1070 LT1070HV LT1071HV

Application Notes

  • LT1070 Design Manual &mdash AN19
    PDF, 656 Kb, Language: en, File published: Jun 1, 1986, Pages: 80
    Application Note 19. This design manual is an extensive discussion of all standard switching configurations for the LT1070; including buck, boost, flyback, forward, inverting and "Cuk." The manual includes comprehensive information on the LT1070, the external components used with it, and complete formulas for calculating component values.
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  • Switching Regulators for Poets: A Gentle Guide for the Trepidatious &mdash AN25
    PDF, 359 Kb, File published: Sep 2, 1987
    Subtitled "A Gentle Guide for the Trepidatious," this is a tutorial on switching regulator design. The text assumes no switching regulator design experience, contains no equations, and requires no inductor construction to build the circuits described. Designs detailed include flyback, isolated telecom, off-line, and others. Appended sections cover component considerations, measurement techniques and steps involved in developing a working circuit.
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  • Some Thoughts on DC-DC Converters &mdash AN29
    PDF, 1.2 Mb, File published: Oct 1, 1988
    This note examines a wide range of DC/DC converter applications. Single inductor, transformer, and switched-capacitor converter designs are shown. Special topics like low noise, high efficiency, low quiescent current, high voltage, and wide-input voltage range converters are covered. Appended sections explain some fundamental properties of different types of converters.
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  • Switching Regulator Circuit Collection &mdash AN30
    PDF, 606 Kb, File published: Feb 1, 1989
    Switching regulators are of universal interest. Linear Technology has made a major effort to address this topic. A catalog of circuits has been compiled so that a design engineer can swiftly determine which converter type is best. This catalog serves as a visual index to be browsed through for a specific or general interest.
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  • Linear Circuits for Digital Systems &mdash AN31
    PDF, 1.5 Mb, File published: Feb 2, 1989
    Subtitled "Some Affable Analogs for Digital Devotees," discusses a number of analog circuits useful in predominantly digital systems. VPP generators for flash memories receive extensive treatment. Other examples include a current loop transmitter, dropout detectors, power management circuits, and clocks.
  • Efficiency and Power Characteristics of Switching Regulator Circuits &mdash AN46
    PDF, 2.6 Mb, File published: 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.

Design Notes

  • A Battery Powered Lap Top Computer Power Supply &mdash DN18
    PDF, 90 Kb, File published: Dec 1, 1988
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Model Line

Manufacturer's Classification

  • Power Management > Switching Regulator > SEPIC Regulators
  • Power Management > Switching Regulator > Step-Up (Boost) Regulators > Internal Power Switch Boost
EMS supplier