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 5V 750MA 10MSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR)
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Fixed
- Number of Outputs：1
- Voltage - Input (Min)：4.2V
- Voltage - Input (Max)：42V
- Voltage - Output (Min/Fixed)：5V
- Voltage - Output (Max)：-
- Current - Output：750mA
- Frequency - Switching：195kHz ~ 2.15MHz
- Synchronous Rectifier：No
- 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
Download product information
Overview
The LT3973HMSE-5#TRPBF is a monolithic buck switching regulator from Analog Devices Inc. It accepts an input voltage range of 4.2V to 42V and delivers up to 750mA output current. The device features a fixed 5V output, adjustable switching frequency up to 2.15MHz, and ultra-low quiescent current of 1.9µA. Operating junction temperature ranges from -40°C to +150°C. It utilizes a 10-lead MSOP package with exposed pad for surface mount installation.
Feature Summary
- Ultra-low quiescent current consumption for extended battery life
- Wide input voltage range supporting high-voltage systems
- Adjustable switching frequency for optimization of external component size
- Integrated synchronous rectification for high efficiency
Applications
- Industrial control systems
- Automotive electronics
- Battery-powered equipment
- Point-of-load regulation
Procurement Notes
Verify the specific suffix #TRPBF indicates tape and reel packaging when ordering. Confirm the HMSE variant meets thermal requirements for your enclosure. Ensure compatibility with existing PCB footprints for the MSOP-10 package. Check for RoHS compliance documentation if required by your manufacturing standards.
Selection Notes
Select this part when a fixed 5V output is required without external feedback resistors. Choose the TRPBF suffix for automated assembly processes requiring reel packaging. Consider the 750mA limit for load requirements. Evaluate thermal performance given the 150°C maximum junction rating in confined spaces.
Part Context
This component belongs to the LT3973 family of micropower buck regulators. It shares core architecture with variants like LT3973IMSE-5 but differs in operating temperature grade and package configuration. The HMSE designation typically denotes automotive-grade reliability specifications compared to standard industrial versions.
Replacement Considerations
LT3973EMSE-5#PBF offers similar electrical characteristics in tube packaging. LT3973IMSE-5#PBF provides industrial temperature range alternatives. Verify pinout compatibility before substituting with other buck regulators from different manufacturers.
