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Product Detailed Parameters
- Description：IC REG CTRLR MULT TOP 10MSOP
- 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-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad
- Supplier Device Package：10-MSOP-EP
- Grade：-
- Qualification：-
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Overview
The LT3757IMSE#PBF is a wide input range, current mode DC/DC controller manufactured by Analog Devices Inc. It supports Boost, Flyback, SEPIC, and Inverting topologies with positive or negative outputs. The device operates on an input voltage of 2.9V to 40V and features a programmable switching frequency from 100kHz to 1MHz. It includes clock synchronization, enable control, soft start, and UVLO. Packaged in a 10-MSOP-EP (3.00mm wide) with exposed pad, it functions within a junction temperature range of -40°C to 125°C.
Feature Summary
- Supports multiple converter topologies including boost, flyback, SEPIC, and inverting configurations for versatile power design.
- Integrates a 7.2V LDO to drive external N-channel MOSFETs without requiring a separate supply rail.
- Features RSENSE-less current sensing technology enabling the use of full ceramic output capacitors.
Applications
- Industrial equipment power supplies
- Automotive electronics systems
- Telecommunications base station infrastructure
- Battery-powered portable devices
Procurement Notes
Verify the specific suffix #PBF indicates tube packaging when ordering, distinct from the TRPBF tape-and-reel variant. Confirm the IMSE grade corresponds to the industrial temperature range (-40°C to 125°C). Ensure the 10-MSOP-EP package footprint matches the PCB layout requirements, specifically accounting for the exposed thermal pad connection for proper heat dissipation and electrical grounding.
Selection Notes
Select this component for designs requiring flexible topology implementation from a single controller IC. It is suitable for applications needing wide input voltage ranges up to 40V. Consider the MSOP-EP package for space-constrained boards requiring thermal management. Verify that the external MOSFET selection aligns with the internal driver capabilities and the chosen switching frequency range for optimal efficiency.
Part Context
The LT3757 series belongs to Analog Devices' portfolio of high-performance switching controllers. It succeeds earlier Linear Technology designs, offering enhanced integration for complex power architectures. The IMSE variant specifically denotes the industrial temperature grade housed in a thermally enhanced small outline package, distinguishing it from DFN variants or automotive AEC-Q100 qualified versions like the LT3757H.
Replacement Considerations
LT3757IMSE#TRPBF: Identical electrical specifications and functionality; differs only in shipping packaging (Tape & Reel vs. Tube). LT3757AIDD#PBF: Alternative package option (10-DFN 3x3) with identical pinout and performance characteristics.
