ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IC REG BUCK BST ADJ 2.5A 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, Cuk, Flyback, Forward Converter
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：3V
- Voltage - Input (Max)：40V
- Voltage - Output (Min/Fixed)：1.244V
- Voltage - Output (Max)：65V (Switch)
- Current - Output：2.5A (Switch)
- Frequency - Switching：100kHz
- Synchronous Rectifier：No
- Operating Temperature：0°C ~ 100°C (TJ)
- Mounting Type：Through Hole
- Package / Case：TO-220-5
- Supplier Device Package：TO-220-5
- Grade：-
- Qualification：-
Download product information
Overview
The LT1171CT#PBF is a monolithic high-power switching regulator from Analog Devices Inc. It operates with an input voltage range of 3V to 60V and provides an output current capability of 2.5A, supporting up to 100W output power. The device integrates a high-current, high-efficiency switch along with oscillator, control, and protection circuitry on the die. It supports standard switching configurations including buck, boost, flyback, forward, inverting, and Cuk topologies. The component is housed in a TO-220-5 package.
Feature Summary
- Integrates a high-current, high-efficiency power switch with complete oscillator, control, and protection circuitry on a single die.
- Supports versatile operation across all standard switching converter topologies, including buck, boost, flyback, forward, inverting, and Cuk configurations.
- Features external current limiting capability for enhanced protection and design flexibility.
Applications
- Buck, boost, flyback, forward, inverting, and Cuk converter designs
- Offline applications driving high-voltage FETs
- Positive-to-negative buck-boost conversion
- Negative boost regulation
Procurement Notes
Verify the specific suffix #PBF indicates lead-free compliance when sourcing. Confirm the manufacturer part number matches Analog Devices Inc. documentation exactly. Ensure the TO-220-5 package type aligns with thermal and mechanical requirements. Cross-reference the datasheet revision to ensure feature consistency. Validate that the 2.5A output rating meets system load demands under specified operating conditions.
Selection Notes
Select this component for designs requiring a wide input voltage range up to 60V and high output power up to 100W. It is suitable for applications needing multiple topology options within a single IC. Consider the TO-220-5 package for through-hole mounting and heat dissipation needs. Compare against the LT1170 series if higher current ratings are required, as the LT1171 is rated for 2.5A compared to the LT1170's 5A.
Part Context
The LT1171CT#PBF belongs to the LT1171 family of high-power switching regulators. It shares architectural similarities with the LT1170 series but offers a 2.5A output current rating compared to the LT1170's 5A. Both families support a wide range of switching topologies and integrate internal power switches. The LT1171 is designed for applications where moderate current levels and high efficiency are prioritized alongside topology flexibility.
Replacement Considerations
LT1170CT#PBF is listed as a parameter-equivalent alternative with a 5A rating. LT1170IT#PBF is also noted as an available substitute. Verify compatibility regarding current handling and package differences before substitution.
