ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IC REG BUCK ADJ 2.5A 16MSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：4.3V
- Voltage - Input (Max)：42V
- Voltage - Output (Min/Fixed)：1.197V
- Voltage - Output (Max)：40.74V
- Current - Output：2.5A
- Frequency - Switching：200kHz ~ 2.25MHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：16-TFSOP (0.118", 3.00mm Width) Exposed Pad
- Supplier Device Package：16-MSOP-EP
Download product information
Overview
The LT3975EMSE#PBF is a monolithic buck switching regulator from Analog Devices Inc. It accepts an input voltage range of 4.3V to 42V and delivers up to 2.5A of load current. The device features a low quiescent current design that consumes only 2.7µA during no-load regulation. It operates in Burst Mode for high efficiency at light loads while maintaining output ripple below 15mV. The IC includes current limit foldback to restrict power dissipation during short circuits and maintains a 500mV dropout voltage when the input falls below the programmed output.
Feature Summary
- Integrates a wide input voltage range capability up to 42V with adjustable frequency operation
- Provides low quiescent current consumption of 2.7µA during no-load regulation conditions
- Utilizes Burst Mode operation to maintain high efficiency at low output currents
- Includes current limit foldback functionality to manage power dissipation during fault conditions
Applications
- Automotive cold crank applications requiring low dropout performance
- Industrial systems demanding high efficiency at light loads
- Distributed power architectures utilizing wide input voltage ranges
Procurement Notes
Verify the specific suffix #PBF indicates lead-free compliance and RoHS adherence. Confirm the MSOP-EP package marking matches official documentation. Ensure the operating temperature range aligns with system requirements before finalizing procurement orders.
Selection Notes
Select this component for designs requiring a 42V input ceiling and 2.5A output capacity. Consider the 2.7µA quiescent current for battery-powered or standby-sensitive applications. Evaluate the need for adjustable frequency settings against EMI constraints and external component sizing requirements.
Part Context
This part belongs to the LT3975 family of synchronous step-down regulators. It shares architectural similarities with other high-voltage buck converters but offers specific current and quiescent current characteristics tailored for automotive and industrial environments.
Replacement Considerations
Consult official substitution guides for compatible parts within the same voltage and current class. Verify pinout compatibility and thermal performance metrics before implementing any alternative components.
