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Product Detailed Parameters
- Description：IC REG CTRLR BOOST 28TSSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Transistor Driver
- Function：Step-Up
- Output Configuration：Positive
- Topology：Boost
- Number of Outputs：2
- Output Phases：2
- Voltage - Supply (Vcc/Vdd)：6V ~ 40V
- Frequency - Switching：154kHz ~ 465kHz
- Duty Cycle (Max)：94%
- Synchronous Rectifier：Yes
- Clock Sync：Yes
- Serial Interfaces：-
- Control Features：Enable, Reset, Soft Start
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：28-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Supplier Device Package：28-TSSOP-EP
- Grade：-
- Qualification：-
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Overview
The LT3782EFE#TRPBF is a current-mode two-phase step-up DC/DC converter controller manufactured by Analog Devices Inc. It operates within an input voltage range of 6V to 40V and supports switching frequencies from 150kHz to 500kHz. The device features synchronous rectification, clock synchronization, and control characteristics including enable, reset, and soft start. Packaged in a 28-TSSOP-EP with exposed pad for surface mount installation, it functions across a temperature range of -40°C to 125°C TJ.
Feature Summary
- Two-phase current-mode operation reduces system component count and improves transient response
- Synchronous rectification capability enhances efficiency in boost applications
- Clock synchronization allows external frequency setting or phase shifting
Applications
- High-power LED lighting drivers
- Battery-powered equipment requiring voltage step-up
- Industrial power supply systems
Procurement Notes
Verify the specific suffix #TRPBF indicates tape-and-reel packaging when sourcing components. Confirm that the device meets RoHS3 compliance requirements for your assembly process. Ensure the supplier provides valid traceability documentation. Check for any obsolescence notices or recommended new design alternatives provided by Analog Devices prior to final procurement decisions.
Selection Notes
Select this controller for applications requiring high-frequency boost conversion with reduced passive component size. The two-phase architecture is suitable for loads demanding up to 4A output current. Consider thermal performance due to the exposed pad package. Verify that the required switching frequency falls within the 150kHz to 500kHz operational range for optimal efficiency.
Part Context
This component belongs to the LT3782 family of dual-phase step-up controllers. It shares functional similarities with variants like LT3782IFE but differs in packaging and reel configuration. The device is designed for compact, high-efficiency power solutions where space constraints and thermal management are critical factors in system design.
Replacement Considerations
Analog Devices has indicated that the LT3782 is not recommended for new designs. Contact Linear Technology for potential replacement part numbers. Publicly confirmed substitutes are not explicitly listed in the provided documentation; verify current availability and alternative recommendations directly with the manufacturer.
