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)：60V
- Voltage - Output (Min/Fixed)：1.244V
- Voltage - Output (Max)：75V (Switch)
- Current - Output：2.5A (Switch)
- Frequency - Switching：100kHz
- Synchronous Rectifier：No
- Operating Temperature：-40°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 LT1171HVIT#PBF is a monolithic high-power switching regulator manufactured by Analog Devices Inc. It supports multiple standard topologies including buck, boost, flyback, forward, inverting, and Cuk configurations. The device features an integrated high-current switch with a maximum rating of 2.5A. It operates with an input voltage range from 3V to 60V and provides an adjustable output voltage starting at 1.244V. The unit delivers up to 100W of output power and switches at a frequency of 100kHz. It is housed in a TO-220-5 package designed for through-hole mounting.
Feature Summary
- Integrates a high-efficiency power switch with complete oscillator, control, and protection circuitry on a single die
- Supports versatile DC-DC conversion topologies including buck, boost, flyback, forward, inverting, and Cuk
- Provides adjustable output voltage capability with positive or negative output configuration options
Applications
- High efficiency 5V buck converter circuits
- LCD contrast power supply generation
- Negative boost regulator applications
- External current limiter implementations
Procurement Notes
Verify the specific suffix IT#PBF against the official Analog Devices datasheet to confirm the TO-220-5 through-hole package and temperature grade. Ensure the ordering information matches the required lead time and environmental compliance standards. Cross-reference the manufacturer part number LT1171HVIT#PBF with authorized distributors to validate authenticity and current product status before finalizing procurement orders.
Selection Notes
Select this component when designing systems requiring a single-chip solution for multiple switching topologies. It is suitable for applications needing high input voltages up to 60V and substantial output currents. Consider the thermal performance of the TO-220-5 package for heat dissipation requirements. Verify that the 100kHz switching frequency aligns with electromagnetic interference constraints and passive component sizing needs.
Part Context
This part belongs to the LT117x family of monolithic switching regulators, which includes variants like the LT1170 and LT1172. These devices share similar internal architectures but differ in current ratings and package options. The LT1171 specifically targets applications requiring 2.5A switch current capability. It serves as a flexible building block for various power supply designs across industrial and commercial sectors.
Replacement Considerations
Check the LT1170HVCT#PBF for higher current capacity or the LT1171HVCQ#PBF for alternative packaging options. Verify pin compatibility and electrical specifications before substituting. Consult the official datasheet for any functional differences between family members.
