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Product Detailed Parameters
- Description：IC REG CTRLR MULT TOPOLOGY 10DFN
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Transistor Driver
- Function：Step-Up, Step-Up/Step-Down
- Output Configuration：Positive and Negative
- Topology：Boost, Flyback, SEPIC
- Number of Outputs：1
- Output Phases：1
- Voltage - Supply (Vcc/Vdd)：2.9V ~ 40V
- Frequency - Switching：100kHz ~ 1MHz
- Duty Cycle (Max)：-
- Synchronous Rectifier：No
- Clock Sync：Yes
- Serial Interfaces：-
- Control Features：Enable, Frequency Control, Soft Start
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：10-WFDFN Exposed Pad
- Supplier Device Package：10-DFN (3x3)
- Grade：-
- Qualification：-
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Overview
The LT3757AIDD#TRPBF is a wide input range, current mode DC/DC controller from Analog Devices. It supports Boost, Flyback, SEPIC, and Inverting topologies with positive or negative outputs. The device operates on a 2.9V to 40V supply with a switching frequency of 100kHz to 1MHz. It features clock synchronization, soft start, and enable control. Packaged in a 10-DFN (3x3) case, it functions within a -40°C to +125°C temperature range.
Feature Summary
- Supports multiple topologies including Boost, Flyback, SEPIC, and Inverting configurations for versatile power design.
- Enables generation of both positive and negative output voltages using a single controller architecture.
- Includes integrated clock synchronization capability to allow phase alignment in multi-controller systems.
Applications
- Automotive DC/DC converter designs requiring high reliability
- Industrial power supplies utilizing SEPIC or Flyback topologies
- Systems requiring isolated or non-isolated negative voltage rails
Procurement Notes
Verify component authenticity through authorized channels due to limited availability status. Confirm package integrity upon receipt as the DFN form factor requires careful handling. Ensure all ordering suffixes match the specific reel or tube configuration required for your assembly process before finalizing procurement.
Selection Notes
Select this part when wide input voltage ranges up to 40V are required alongside flexible topology options. Consider the 10-DFN package for space-constrained applications needing thermal performance via exposed pads. Evaluate the need for synchronous rectification separately as this controller does not include internal drivers for synchronous switches.
Part Context
This component belongs to the LT3757 family of high-frequency switching controllers. It shares functional similarities with the LT3758 but offers distinct pinout and feature variations tailored for specific application requirements. The series is designed for robust performance in demanding industrial and automotive environments.
Replacement Considerations
LT3757AIMSE#TRPBF: Pin-compatible alternative in MSOP package. LT3757IDD#TRPBF: Industrial grade variant in DFN package. Verify thermal characteristics and package dimensions when substituting between DFN and MSOP footprints.
