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Product Detailed Parameters
- Description：IC REG CTRLR MULT TOPOLOGY 10DFN
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- 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#PBF 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 switch 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 converter topologies including Boost, Flyback, SEPIC, and Inverting configurations.
- Capable of generating either positive or negative output voltages for flexible system design.
- Includes internal clock synchronization and programmable soft-start functionality.
Applications
- Industrial power supplies requiring isolated or non-isolated conversion
- Automotive electronics systems with wide input voltage ranges
- Telecommunications equipment utilizing SEPIC or inverting architectures
Procurement Notes
Verify the specific suffix against official Analog Devices documentation to confirm package type and tape/reel specifications. Ensure the ordering part number matches the required operational temperature range and pin configuration. Cross-reference datasheet revisions to validate electrical characteristics before integration into final designs.
Selection Notes
Select this component when designing circuits requiring a single controller for multiple topology options such as boost or flyback. Consider the 10-DFN package size for space-constrained applications. Evaluate the need for external synchronization signals if operating near sensitive frequency bands.
Part Context
This part belongs to the LT3757 family of DC/DC controllers designed for high flexibility. It serves as a core power management IC for engineers needing a single solution for various step-up, step-down, or inverted voltage requirements without changing the primary control architecture.
Replacement Considerations
LT3757IDD#PBF
FAQ
Does the LT3757AIDD#PBF support synchronous rectification?
No, the LT3757AIDD#PBF does not include an integrated synchronous rectifier; it requires external MOSFETs for the rectification stage.
What is the maximum operating junction temperature for this controller?
The maximum operating junction temperature for the LT3757AIDD#PBF is +125°C.
