Datasheet Linear Technology LT1170HV

ManufacturerLinear Technology
SeriesLT1170HV

100kHz, 5A, 2.5A and 1.25A High Efficiency Switching Regulators

Datasheets

LT1170/LT1171/LT1172 - 100kHz, 5A, 2.5A and 1.25A High Efficiency Switching Regulators
PDF, 339 Kb, Revision: I, File uploaded: Sep 3, 2017
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Prices

Packaging

LT1170HVCQ#PBFLT1170HVCQ#TRPBFLT1170HVCT#06PBFLT1170HVCT#30PBFLT1170HVCT#PBFLT1170HVIT#31PBFLT1170HVIT#PBF
N1234567
PackageDDPAK-5
Package Outline Drawing
DDPAK-5
Package Outline Drawing
TO-220
Package Outline Drawing
TO-220
Package Outline Drawing
TO-220
Package Outline Drawing
TO-220
Package Outline Drawing
TO-220
Package Outline Drawing
Package CodeQQTTTTT
Package Index05-08-146105-08-146105-08-1421 (Flow 06)05-08-1421 (Std)05-08-1421 (Std)05-08-1421 (Std)05-08-1421 (Std)
Pin Count5555555

Parametrics

Parameters / ModelsLT1170HVCQ#PBFLT1170HVCQ#TRPBFLT1170HVCT#06PBFLT1170HVCT#30PBFLT1170HVCT#PBFLT1170HVIT#31PBFLT1170HVIT#PBF
ArchitectureConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current Mode
Design ToolsLTspice FileLTspice FileLTspice FileLTspice FileLTspice FileLTspice FileLTspice File
Export Controlnonononononono
FeaturesExternal SynchronizationExternal SynchronizationExternal SynchronizationExternal SynchronizationExternal SynchronizationExternal SynchronizationExternal Synchronization
Frequency, kHz100100100100100100100
Frequency Sync Range120kHz - 160kHz120kHz - 160kHz120kHz - 160kHz120kHz - 160kHz120kHz - 160kHz120kHz - 160kHz120kHz - 160kHz
Integrated Inductornonononononono
Ishutdown, µA50505050505050
Isupply, mA6666666
Monolithicyesyesyesyesyesyesyes
Number of Outputs1111111
Operating Temperature Range, °C0 to 700 to 700 to 700 to 700 to 70-40 to 85-40 to 85
Polyphasenonononononono
Switch Current, A5555555
Synchronousnonononononono
TopologyBoost, Flyback, SepicBoost, Flyback, SepicBoost, Flyback, SepicBoost, Flyback, SepicBoost, Flyback, SepicBoost, Flyback, SepicBoost, Flyback, Sepic
Vin Max, V60606060606060
Vin Min, V3333333
Vin Min Startup, V3333333
Vout Max, V60606060606060
Vout Min, V1.2441.2441.2441.2441.2441.2441.244
Vswitch Max, V75757575757575

Eco Plan

LT1170HVCQ#PBFLT1170HVCQ#TRPBFLT1170HVCT#06PBFLT1170HVCT#30PBFLT1170HVCT#PBFLT1170HVIT#31PBFLT1170HVIT#PBF
RoHSCompliantCompliantCompliantCompliantCompliantCompliantCompliant

Other Options

LT1170 LT1171 LT1171HV LT1172 LT1172HV

Application Notes

  • Illumination Circuitry for Liquid Crystal Displays &mdash AN49
    PDF, 5.3 Mb, File published: Aug 23, 1992
    Current generation portable computers and instruments utilize backlit liquid crystal displays. The back light requires a highly efficient, high voltage AC source as well as other supply circuitry. AN49 details these circuits and also includes sections on efficiency measurements and instrumentation considerations. A separate section discusses physical and layout considerations for the display.
  • Power Conditioning for Notebook and Palmtop Systems &mdash AN51
    PDF, 260 Kb, File published: Aug 3, 1992
    Notebook and palmtop systems need a number of voltages developed from a battery. Competitive solutions require small size, high efficiency and light weight. This publication includes circuits for high efficiency 5V and 3.3V switching and linear regulators, back light display drivers and battery chargers. All the circuits are specifically tailored for the requirements outlined above.
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  • Techniques for 92% Efficient LCD Illumination &mdash AN55
    PDF, 688 Kb, File published: Aug 1, 1993
    This publication details several LCD backlight circuits which feature 92% efficiency. Other benefits include low voltage operation, synchronizing capability, higher output power for color displays, and extended dimming range. Extensive coverage of practical issues includes layout problems, multi-lamp displays, safety and reliability concerns and efficiency and photometric measurements. Also included is a review of circuits which did not work along with appropriate commentary.
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  • Practical Circuitry for Measurement and Control Problems &mdash AN61
    PDF, 1.1 Mb, File published: Aug 1, 1994
    This collection of circuits was worked out between June 1991 and July of 1994. Most were designed at customer request or are derivatives of such efforts. Types of circuits include power converters, transducer signal conditioners, amplifiers and signal generators. Specific circuits include low noise amplifiers, high power single cell DC/DC converters, portable high accuracy barometers, a 10mHz 1% accuracy RMS/DC converter, and random noise generators. Appended sections cover noise theory and present a historical perspective of wideband amplifiers.
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  • A Fourth Generation of LCD Backlight Technology &mdash AN65
    PDF, 5.9 Mb, File published: Nov 1, 1995
    This publication, LTC's fourth effort devoted to LCD backlighting in as many years, treats the subject comprehensively. The text considers lamps, display and layout induced losses, circuitry, efficiency related issues, optimization and measurement techniques. Twelve appended sections cover lamp types, mechanical design, electrical and photometric measurement, layout, circuitry and related topics.
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Design Notes

  • Switching Regulator Allows Alkalines to Replace NiCads &mdash DN41
    PDF, 70 Kb, File published: Nov 1, 1990
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Articles

  • Positive-to-Negative Converter Powers В–48V Telecom Circuits &mdash LT Journal
    PDF, 230 Kb, File published: May 1, 1998
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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