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Product Detailed Parameters
- Description：IC REG BUCK BOOST ADJ 3A TO220-7
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Function：Step-Up, Step-Down, Step-Up/Step-Down
- Output Configuration：Positive or Negative
- Topology：Buck, Boost, Cuk, Flyback, Forward Converter, SEPIC
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：2.7V
- Voltage - Input (Max)：30V
- Voltage - Output (Min/Fixed)：1.245V
- Voltage - Output (Max)：42V (Switch)
- Current - Output：3A (Switch)
- Frequency - Switching：500kHz
- Synchronous Rectifier：No
- Operating Temperature：0°C ~ 70°C (TA)
- Mounting Type：Through Hole
- Package / Case：TO-220-7 Formed Leads
- Supplier Device Package：TO-220-7
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Overview
The LT1371HVCT7#PBF is a high-frequency current-mode switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 2.7V to 30V and provides an adjustable output voltage from 1.245V to 42V. The device supports a maximum switch current of 3A at a fixed switching frequency of 500kHz. It features a shutdown function and low operating supply current of 4mA. The component is housed in a TO-220-7 through-hole package and functions as a step-down, step-up, or SEPIC converter.
Feature Summary
- Supports multiple topologies including buck, boost, Cuk, flyback, forward, and SEPIC configurations
- High switching frequency of 500kHz enables the use of small external components
- Current-mode control architecture ensures fast transient response and inherent cycle-by-cycle current limiting
- Integrated shutdown pin allows for low-power standby operation
Applications
- Battery-powered systems requiring wide input voltage ranges
- Industrial control circuits needing isolated or non-isolated DC-DC conversion
- Portable instrumentation utilizing step-up or step-down voltage regulation
- Automotive electronics operating within standard vehicle electrical environments
Procurement Notes
Verify the specific suffix CT7#PBF corresponds to the TO-220-7 formed lead package when sourcing. Confirm RoHS compliance status via the manufacturer's latest material declaration. Ensure the supplier provides the official datasheet for thermal management calculations, as power dissipation varies significantly with input-output differential and load current.
Selection Notes
Select this component when a single IC must support both step-up and step-down operations across a wide voltage span. The 500kHz frequency balances efficiency and component size. Consider the TO-220-7 package for applications requiring robust thermal performance without active cooling. Verify that the required output voltage remains within the 1.245V to 42V adjustable range defined by the internal reference.
Part Context
This part belongs to the LT1371 family of monolithic switching regulators. Unlike the standard LT1371, the HV variant handles higher input voltages up to 30V. It shares architectural similarities with the LT1370 but offers different current handling capabilities. The family is designed for versatile power conversion needs in space-constrained designs.
Replacement Considerations
Direct substitutes include LT1371CT7#PBF for lower voltage input applications (up to 15V). For higher current requirements, consider the LT1370 series. Verify pin compatibility and thermal characteristics before swapping, as package variations may affect mounting and heat dissipation.
