Products > Integrated Circuits (ICs) > Power Management ICs > LT1074HVCT#PBF

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Conv DC-DC 7.3V to 64V Step Down Single-Out 2.5V to 50V 10A 5-Pin(5+Tab) TO-220 Tube

Manufacturer : Analog Devices, Inc
Package/Case : TO-220
Product Categories : DC-DC Converters
Datasheet: LT1074HVCT#PBF Datasheet (PDF)
RoHs Status: Pb-free Halide free
In-stock: 3800


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LT1074HVCT#PBF Product Details

The LT1074 is a 5A (LT1076 is rated at 2A) monolithic bipolar switching regulator which requires only a few external parts for normal operation. The power switch, all oscillator and control circuitry, and all current limit components,are included on the chip. The topology is a classic positive “buck” configuration but several design innovations allow this device to be used as a positive-to-negative converter, a negative boost converter, and as a flyback converter. The switch output is specified to swing 40V below ground, allowing the LT1074 to drive a tapped-inductor in the buck mode with output currents up to 10A.

The LT1074 uses a true analog multiplier in the feedback loop. This makes the device respond nearly instantaneously to input voltage fluctuations and makes loop gain independent of input voltage. As a result, dynamic behavior of the regulator is significantly improved over previous designs.

On-chip pulse by pulse current limiting makes the LT1074 nearly bust-proof for output overloads or shorts. The input voltage range as a buck converter is 8V to 60V, but a self-boot feature allows input voltages as low as 5V in the inverting and boost configurations.

The LT1074 is available in lowcost TO-220 or DD packages with frequency pre-set at 100kHz and current limit at 6.5A (LT1076 =2.6A). A 7-pin TO-220 package is also available which allows current limit to be adjusted down to zero. In addition, full micropower shutdown can be programmed. See Application Note 44 for design details.

A fixed 5V output, 2A version is also available. See LT1076-5.



  • 5A Onboard Switch (LT1074)
  • Operates Up to 60V Input
  • 100kHz Switching Frequency
  • Greatly Improved Dynamic Behavior
  • Available in Low Cost 5 and 7-Lead Packages
  • Only 8.5mA Quiescent Current
  • Programmable Current Limit
  • Micropower Shutdown Mode


  • Buck Converter with Output Voltage Range of 2.5V to 50V
  • Tapped-Inductor Buck Converter with 10A Output at 5V
  • Positive-to-Negative Converter
  • Negative Boost Converter
  • Multiple Output Buck Converter

LT1074HVCT#PBF Pinout
(Picture: Pinout)

LT1074HVCT#PBF Block Diagram
(Picture: Diagram)

Technical Parameters

  • Function
  • Step-Up, Step-Down, Step-Up/Step-Down
  • Output Configuration
  • Positive or Negative
  • Topology
  • Buck, Boost, Flyback
  • Output Type
  • Adjustable
  • Number of Outputs
  • 1
  • Voltage Input (Min)
  • 8V
  • Voltage Input (Max)
  • 64V
  • Voltage Output (Min/Fixed)
  • 2.5V
  • Voltage Output (Max)
  • 35V
  • Current Output
  • 5.5A (Switch)
  • Frequency Switching
  • 100kHz
  • Synchronous Rectifier
  • No
  • Operating Temperature
  • 0??C ~ 70??C (TA)
  • Mounting Type
  • Through Hole
  • Package / Case
  • TO-220-5 Formed Leads
  • Supplier Device Package
  • TO-220-5

LT1074HVCT#PBF Datasheet

  • LT1074HV Technical Documentation/Data sheet

LT1074HVCT#PBF Equivalent Parts

For the LT1074HVCT#PBF component, you may consider these replacement and alternative parts.

Models Manufacturer Package/Case Description
LT1074CT#PBF ADI TO-220 Linear Technology, LT1074CT#PBF Step-Down Switching Regulator 10A Adjustable, 2.5 50 V 5-Pin, TO-220

LT1074HVCT#PBF Related Products

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Analog Devices, Inc

Analog Devices, Inc. was founded by two MIT graduates, Ray Stata and Matthew Lorber in 1965. The same year, the company released its first product, the model 101 op amp, which was a hockey-puck sized module used in test and measurement equipment. In 1967, the company published the first issue of its...
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