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Product Detailed Parameters
- Description：IC REG BUCK BOOST ADJ 5A DDPAK-5
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR)
- 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：5A (Switch)
- Frequency - Switching：100kHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 100°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
- Supplier Device Package：DDPAK-5
- Grade：-
- Qualification：-
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Overview
The LT1170IQ#TRPBF is a monolithic high-power switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 3V to 60V and delivers up to 5A output current. The device supports multiple topologies including buck, boost, flyback, forward, inverting, and Cuk configurations. It features a 100kHz switching frequency and adjustable output voltage starting from 1.244V. Packaged in a DDPAK-5 (TO-263-6) surface-mount housing, it functions within a temperature range of -40°C to +100°C TJ.
Feature Summary
- Supports all standard switching configurations including buck, boost, flyback, forward, inverting, and Cuk topologies
- Integrates a high-current, high-efficiency power switch on the die
- Includes complete oscillator, control, and protection circuitry
- Provides adjustable output voltage capability
Applications
- LCD contrast power supplies
- Positive-to-negative buck-boost converters
- High efficiency constant current chargers
- Forward converter implementations
Procurement Notes
Verify the #TRPBF suffix indicates tape-and-reel packaging rather than tube packaging when ordering. Confirm the specific grade matches industrial requirements. Cross-reference the datasheet for thermal performance limits under your specific load conditions. Ensure the DDPAK-5 footprint aligns with your PCB layout constraints before finalizing procurement.
Selection Notes
Select this component for designs requiring versatile topology support and high current handling up to 5A. It is suitable for applications needing wide input voltage ranges up to 60V. Consider the thermal dissipation capabilities of the DDPAK-5 package for high-power scenarios. Verify that the 100kHz frequency meets your electromagnetic interference requirements.
Part Context
This part belongs to the LT1170 series of high-power switching regulators. It shares core functionality with variants like the LT1170IQ but differs in packaging format due to the TRPBF suffix indicating reel packaging. The series is designed for robust DC-DC conversion across various industrial and commercial applications.
Replacement Considerations
LT1170IQ#PBF is a compatible alternative offering identical electrical specifications but in tube packaging instead of tape-and-reel. Ensure your assembly equipment supports the respective packaging type. No functional differences exist between the two packaging options.
