Datasheet Linear Technology LT1070HV

ManufacturerLinear Technology
SeriesLT1070HV

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
Extract from the document

Prices

Packaging

LT1070HVCT#06PBFLT1070HVCT#PBFLT1070HVIT#06PBFLT1070HVIT#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 (Flow 06)05-08-1421 (Std)05-08-1421 (Flow 06)05-08-1421 (Std)
Pin Count5555

Parametrics

Parameters / ModelsLT1070HVCT#06PBFLT1070HVCT#PBFLT1070HVIT#06PBFLT1070HVIT#PBF
Design ToolsLTspice ModelLTspice ModelLTspice ModelLTspice Model
Export Controlnononono
Frequency, kHz40404040
Ishutdown, µA100100100100
Isupply, mA6666
Monolithicyesyesyesyes
Number of Outputs1111
Operating Temperature Range, °C0 to 700 to 70-40 to 85-40 to 85
Switch Current, A5555
Synchronousnononono
TopologyBoost, Flyback, SepicBoost, Flyback, SepicBoost, Flyback, SepicBoost, Flyback, Sepic
Vin Max, V60606060
Vin Min, V3333
Vin Min Startup, V3333
Vout Max, V40404040
Vout Min, V1.2441.2441.2441.244
Vswitch Max, V75757575

Eco Plan

LT1070HVCT#06PBFLT1070HVCT#PBFLT1070HVIT#06PBFLT1070HVIT#PBF
RoHSCompliantCompliantCompliantCompliant

Other Options

LT1070 LT1071 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.
    Extract from the document
  • 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.
    Extract from the document
  • 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.
    Extract from the document
  • 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.
    Extract from the document
  • 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.
  • Step Down Switching Regulators &mdash AN35
    PDF, 6.2 Mb, File published: 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.
    Extract from the document
  • Parasitic Capacitance Effects in Step-Up Transformer Design &mdash AN39
    PDF, 764 Kb, File published: Feb 3, 1990
    This note explores the causes of the large resonating current spikes on the leading edge of the switch current waveform. These anomalies are exacerbated in very high voltage designs.
    Extract from the document
  • LT1074/LT1076 Design Manual &mdash AN44
    PDF, 477 Kb, File published: 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.
    Extract from the document
  • 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

  • Achieving Microamp Quiescent Current in Switching Regulators &mdash DN11
    PDF, 95 Kb, File published: Jun 1, 1988
    Extract from the document
  • Telephone Ring-Tone Generation &mdash DN134
    PDF, 80 Kb, File published: Aug 1, 1996
    Extract from the document
  • A Battery Powered Lap Top Computer Power Supply &mdash DN18
    PDF, 90 Kb, File published: Dec 1, 1988
    Extract from the document
  • Floating Input Extends Regulator Capabilities &mdash DN21
    PDF, 71 Kb, File published: Apr 1, 1989
    Extract from the document
  • Inductor Selection for LT 1070 Switching Regulators &mdash DN8
    PDF, 114 Kb, File published: Mar 1, 1988
    Extract from the document

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