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Product Detailed Parameters
- Description：IC REG BOOST CUK ADJ 6A 38TSSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR)
- Function：Step-Up, Step-Up/Step-Down
- Output Configuration：Positive or Negative
- Topology：Boost, Cuk, SEPIC
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：1.6V
- Voltage - Input (Max)：40V
- Voltage - Output (Min/Fixed)：0.8V
- Voltage - Output (Max)：40V (Switch)
- Current - Output：6A (Switch)
- Frequency - Switching：100kHz ~ 1MHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：38-TFSOP (0.173", 4.40mm Width) Exposed Pad
- Supplier Device Package：38-TSSOP-EP
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Overview
The LT3959EFE#TRPBF is a wide input voltage range, current mode DC/DC controller manufactured by Analog Devices Inc. It features an integrated 6A, 40V switch and is designed to regulate positive or negative output voltages through a single feedback pin. The device supports boost, SEPIC, and inverting converter topologies. It is housed in a 38-lead TSSOP package with an exposed pad (TSSOP-EP) and is supplied in tape and reel packaging for surface mount applications.
Feature Summary
- Integrates a high-current 6A, 40V power switch for efficient power conversion
- Supports multiple converter topologies including boost, SEPIC, and inverting configurations
- Utilizes current mode control architecture for precise regulation
- Regulates both positive and negative output voltages via a single feedback pin
Applications
- Industrial power supply systems requiring wide input ranges
- Automotive electronics utilizing SEPIC or inverting architectures
- Battery-powered devices needing flexible voltage step-up or inversion
- Telecommunications infrastructure power management modules
Procurement Notes
Verify the specific suffix TRPBF indicates tape and reel packaging when ordering. Confirm the 38-lead TSSOP-EP package dimensions match your PCB footprint requirements. Ensure compatibility with the manufacturer's recommended operating conditions for thermal management. Cross-reference the datasheet revision date to confirm feature consistency before finalizing procurement specifications.
Selection Notes
Select this component when a wide input voltage range and high current capability are required in a compact form factor. The single feedback pin simplifies design complexity for dual-polarity outputs. Consider the thermal performance of the exposed pad package for high-power dissipation scenarios. Evaluate the need for SEPIC or inverting topologies over standard buck or boost converters based on system voltage constraints.
Part Context
This part belongs to the LT3959 family of DC/DC controllers from Analog Devices. It shares architectural similarities with other members of the series but is distinguished by its specific switch rating and package configuration. The family is designed for applications demanding robust power conversion with minimal external component count.
Replacement Considerations
Check for direct pin-compatible substitutes within the LT3959 series such as LT3959EFE#PBF for tube packaging. Verify if alternative models like LT3952 or LT3791 meet the specific voltage and current requirements, noting differences in topology support and switch ratings.
