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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 LT3757IDD#TRPBF is a switching controller designed for boost, flyback, SEPIC, and inverting topologies. It operates with an input voltage range of 2.9V to 40V and supports switching frequencies from 100kHz to 1MHz. The device features clock synchronization capability and includes control characteristics such as enable, frequency control, and soft start. It utilizes a 10-WFDFN package with exposed pad, measuring 3x3mm, and is rated for operation between -40°C and 125°C junction temperature.
Feature Summary
- Supports multiple DC-DC converter topologies including boost, flyback, SEPIC, and inverting configurations.
- Enables precise timing alignment through external clock synchronization functionality.
- Integrates programmable soft start and frequency control mechanisms for stable startup sequences.
Applications
- Industrial power supply systems requiring isolated or non-isolated conversion
- Battery-powered equipment utilizing boost or SEPIC architectures
- Systems generating negative output voltages from positive rails
Procurement Notes
Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing components. Confirm that the IDD variant meets the required thermal performance specifications for the intended operating environment. Ensure compatibility with the selected inductor and capacitor values based on the chosen switching frequency. Cross-reference the datasheet revision to confirm pinout consistency with existing designs.
Selection Notes
Select this component when design requirements involve flexible topology implementation within a compact footprint. Consider the wide input voltage range suitable for single-cell lithium battery applications. Evaluate the need for clock synchronization to minimize electromagnetic interference in dense layouts. Assess thermal dissipation capabilities provided by the exposed pad DFN package under maximum load conditions.
Part Context
This part belongs to the LT3757 family of multi-topology controllers manufactured by Analog Devices Inc. It serves as a versatile solution for designers needing to implement various DC-DC conversion methods using a single controller architecture. The device complements other linear technology power management solutions by offering high flexibility in circuit configuration.
Replacement Considerations
LT3757AEMSE#PBF offers equivalent functionality in a different MSOP package format. LT3757AMPMSE#TRPBF provides identical electrical characteristics in a QFN package variant. Verify pin-to-pin compatibility and thermal resistance differences before substituting these alternatives in existing assemblies.
