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：Tape & Reel (TR)
- 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 LT3972IMSE#TRPBF is a synchronous 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 a fixed switching frequency of 2.45 MHz and supports adjustable output voltages from 790 mV to 30 V. It incorporates a low quiescent current of 75 µA during operation and reduces to 30 µA in shutdown mode. The component is housed in a 10-lead MSOP package and is rated for junction temperatures between -40°C and +125°C.
Feature Summary
- Integrates a high-efficiency synchronous buck converter topology with internal power switches.
- Features a fixed 2.45 MHz switching frequency to minimize external passive component size.
- Includes programmable soft-start capability to limit inrush current during startup.
- Supports phase synchronization to an external clock signal for noise management.
Applications
- Industrial control systems requiring compact power solutions
- Automotive electronics operating within standard voltage ranges
- Portable instrumentation powered by single-cell lithium batteries
- Distributed power architectures in embedded computing
Procurement Notes
Verify the specific suffix TRPBF indicates tape-and-reel packaging when ordering. Confirm the IMSE variant meets industrial temperature specifications compared to commercial grades. Cross-reference the manufacturer part number with official Analog Devices documentation to ensure authenticity and correct pinout compatibility before integration into production designs.
Selection Notes
Select this component for applications requiring high current density in small footprints due to the 2.45 MHz frequency. Ensure the input voltage source remains within the 3.6 V to 33 V operational window. Consider thermal performance requirements given the 3.5 A output capability in a compact MSOP package, and verify that the required output voltage falls within the adjustable range supported by the feedback network.
Part Context
This part belongs to the LT3972 family of synchronous buck regulators designed for high-efficiency power conversion. It shares architectural similarities with other members like the LT3971 and LT3973 but offers distinct current and voltage ratings. The series is characterized by integrated power switches and advanced control features suitable for space-constrained designs.
Replacement Considerations
LT3972IDD#PBF is a pin-compatible alternative available in a DFN package. LT3971AIMSE-5#TRPBF offers similar functionality with lower output current. Verify electrical parameters and thermal characteristics against the original design requirements before substitution.
