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Product Detailed Parameters
- Description：IC REG CTRLR MULT TOP 10MSOP
- 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 ~ 150°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 LT3757AHMSE#TRPBF is a wide input range, current mode DC/DC controller manufactured by Analog Devices Inc. It supports boost, flyback, SEPIC, and inverting topologies to generate positive or negative output voltages. The device operates with a supply voltage of 2.9V to 40V and features a switch frequency range of 100kHz to 1MHz. It includes clock synchronization, enable control, frequency control, and soft-start capabilities. Packaged in a 10-MSOP-EP surface-mount package, 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.
- Enables generation of both positive and negative output voltages from a single controller architecture.
- Features integrated clock synchronization to allow phase alignment with other switching regulators.
- Includes built-in soft-start functionality to limit inrush current during startup sequences.
Applications
- Industrial power supplies requiring wide input voltage ranges
- Telecommunications equipment utilizing SEPIC or inverting architectures
- Automotive systems needing robust DC-DC conversion
- Battery-powered devices requiring step-up or step-down regulation
Procurement Notes
Verify the specific suffix TRPBF indicates tape and reel packaging when ordering. Confirm that the AHMSE variant meets the required industrial temperature specifications for your application environment. Ensure compatibility with the 10-MSOP-EP footprint during PCB layout. Cross-reference the datasheet for any recent product change notices regarding epoxy or marking changes before finalizing procurement.
Selection Notes
Select this component when designing circuits that require flexible topology support beyond standard buck or boost converters. The current mode control architecture offers fast transient response suitable for dynamic loads. Consider the 10-MSOP-EP package for thermal performance if heat dissipation is a concern. Evaluate the 100kHz to 1MHz frequency range against EMI requirements and external component size constraints.
Part Context
This part belongs to the LT3757 family of DC/DC controllers designed for applications demanding high flexibility in power stage configuration. It serves as an alternative to fixed-function controllers by allowing designers to implement various isolated and non-isolated topologies using external components.
Replacement Considerations
LT3757AIMSE#TRPBF
FAQ
Does the LT3757A support synchronous rectification?
No, the LT3757A does not include an internal synchronous rectifier driver; it requires external MOSFETs for rectification.
What is the maximum operating junction temperature?
The maximum operating junction temperature is 125°C.
