Manufacturer Part Number
LM2678SD-5.0
Manufacturer
Texas Instruments
Introduction
The LM2678SD-5.0 is a member of the SIMPLE SWITCHER® series from Texas Instruments, designed for power management, particularly as a DC DC switching regulator. It facilitates the step-down (buck) conversion of voltage.
Product Features and Performance
Step-Down (Buck) topology
Fixed output type at 5V
Single output channel
Supports input voltage range from 8V to 40V
Capable of delivering up to 5A output current
Operates at a switching frequency of 260kHz
Non-synchronous rectifier
Designed to operate in environments with temperatures ranging from -40°C to 125°C
Product Advantages
High efficiency in stepping down voltage
Supports a wide range of input voltages
High output current capacity
Compact surface mount package for space-sensitive applications
Key Technical Parameters
Voltage Input (Min): 8V
Voltage Input (Max): 40V
Voltage Output (Min/Fixed): 5V
Current Output: 5A
Frequency Switching: 260kHz
Operating Temperature: -40°C ~ 125°C (TJ)
Mounting Type: Surface Mount
Package / Case: 14-VDFN Exposed Pad
Supplier Device Package: 14-VSON (5x6)
Quality and Safety Features
Engineered to endure harsh operating temperatures
Robust package design for enhanced durability
Compatibility
Suitable for surface mount technology (SMT) applications
Application Areas
Power management in consumer electronics
Industrial devices requiring efficient voltage step-down solutions
Automotive power supplies
Telecom infrastructure
Product Lifecycle
Currently classified as Obsolete
Replacement or upgrade options may be limited
Several Key Reasons to Choose This Product
High efficiency and reliability for voltage reduction in a compact form factor
Supports a broad input voltage range suitable for various power supply configurations
Capable of supplying significant output current for high-power applications
Part of Texas Instruments' reputable SIMPLE SWITCHER® series, ensuring ease of use and performance reliability
Despite its obsolescence, it remains a viable choice for specific legacy applications or where a direct replacement is not critical
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