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Product Detailed Parameters
- Description：IC REG BUCK BOOST ADJ 8A TO220-5
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- 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)：3.5V
- Voltage - Input (Max)：30V
- Voltage - Output (Min/Fixed)：1.244V
- Voltage - Output (Max)：60V (Switch)
- Current - Output：8A (Switch)
- Frequency - Switching：60kHz
- Synchronous Rectifier：No
- Operating Temperature：0°C ~ 125°C (TJ)
- Mounting Type：Through Hole
- Package / Case：TO-220-5
- Supplier Device Package：TO-220-5
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Overview
The LT1270CT#PBF is a monolithic high-efficiency switching regulator from Analog Devices Inc., housed in a TO-220-5 package. It features an internal 8A switch and operates with a fixed switching frequency of 60kHz. The device supports a wide input voltage range from 3.5V to 30V and delivers a minimum output voltage of 1.244V. It draws a low quiescent current of 7mA and can handle a maximum switch voltage of 60V. The component is rated for an operating temperature range of 0°C to 125°C TJ.
Feature Summary
- Supports multiple converter topologies including buck, boost, flyback, and Cuk configurations
- Integrates an 8A internal power switch to minimize external component count
- Maintains low quiescent current consumption for improved efficiency
Applications
- Industrial power supply systems requiring adjustable voltage regulation
- Battery-powered equipment utilizing step-up or step-down conversion
- Negative voltage generation circuits for analog signal processing
Procurement Notes
Verify the specific suffix #PBF confirms lead-free compliance and RoHS adherence before procurement. Confirm the TO-220-5 through-hole package matches your PCB footprint requirements. Ensure the 8A switch current rating aligns with your peak load demands. Validate that the 60kHz switching frequency does not interfere with sensitive RF sections in your design.
Selection Notes
Select this component when a robust 8A switching solution is required without complex external driver circuits. The fixed 60kHz frequency simplifies filter design compared to variable frequency alternatives. Consider the TO-220-5 package for applications requiring direct heatsinking. Verify input voltage stability within the 3.5V to 30V range to ensure proper regulation performance.
Part Context
This part belongs to the LT1270 family of high-power switching regulators, serving as a successor to the LT1070 series. It shares functional similarities but offers higher current handling capabilities. The LT1270CT#PBF variant specifically denotes the commercial temperature grade version packaged in a leaded TO-220-5 housing suitable for general-purpose industrial applications.
Replacement Considerations
LT1270IT#PBF serves as a verified industrial temperature grade substitute offering identical electrical specifications with extended thermal operation limits.
