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 3.5A 10MSOP
- 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)：3.6V
- Voltage - Input (Max)：33V
- Voltage - Output (Min/Fixed)：0.79V
- Voltage - Output (Max)：30V
- Current - Output：3.5A
- Frequency - Switching：230kHz ~ 2.45MHz
- Synchronous Rectifier：No
- 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
Download product information
Overview
The LT3972EMSE#PBF is a high-efficiency, monolithic step-down switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 3.6 V to 33 V and delivers up to 3.5 A of output current. The device features an adjustable switching frequency from 200 kHz to 2.45 MHz, allowing for optimization of external component size and efficiency. It incorporates a low quiescent current of 75 µA during operation and drops to 30 µA in shutdown mode. The output voltage is adjustable from 790 mV to 30 V. Packaged in a thermally enhanced 10-lead MSOP with exposed pad, it supports operation over an extended temperature range of -40°C to +125°C.
Feature Summary
- Integrated high-side N-channel MOSFET enables compact design without external power switches
- Adjustable switching frequency allows optimization between efficiency and passive component size
- Low quiescent current minimizes power consumption in battery-powered applications
- Constant-frequency peak current mode control provides fast transient response and inherent cycle-by-cycle current limiting
Applications
- Point-of-load regulation for industrial equipment
- Battery-powered instrumentation systems
- Telecommunications infrastructure power distribution
- Embedded computing subsystems requiring efficient DC-DC conversion
Procurement Notes
Verify the exact part number suffix against official Analog Devices documentation to confirm package type and temperature grade. Confirm RoHS compliance status through the manufacturer's material declaration. Check for obsolescence notices or lifecycle changes before finalizing procurement plans.
Selection Notes
Select this component when a wide input voltage range and high output current are required in a small footprint. Ensure the chosen switching frequency aligns with available inductor values and thermal constraints. Verify that the desired output voltage falls within the adjustable range supported by the feedback resistor network configuration.
Part Context
This part belongs to the LT3972 family of high-voltage buck regulators designed for demanding industrial and communication applications. It shares architectural similarities with other members like the LT3971 but offers higher current capability and broader input voltage tolerance compared to lower-power variants in the series.
Replacement Considerations
Direct pin-compatible substitutes may include other Analog Devices high-voltage buck regulators such as the LT3745 or LT3892, provided electrical parameters match application requirements. Always verify functional compatibility and thermal performance before substitution.
