Manufacturer Part Number
LM2598SX-3.3
Manufacturer
Texas Instruments
Introduction
The LM2598SX-3.3 from Texas Instruments is a SIMPLE SWITCHER® step-down voltage regulator designed to produce a fixed output voltage of 3.3V with a maximum output current of 1A.
Product Features and Performance
Step-down (buck) regulator topology
Fixed output voltage of 3.3V
Maximum output current of 1A
Frequency of switching is 150kHz
Operating temperature ranges from -40°C to 125°C
Synchronous rectifier not included
Product Advantages
Efficient power management with buck regulator for lower voltage requirement
Supports a wide range of input voltage from 4.5V to 40V making it versatile for various applications
Built-in thermal shutdown and current limit features enhance the safety and durability of the device
Key Technical Parameters
Voltage - Input (Min): 4.5V
Voltage - Input (Max): 40V
Voltage - Output (Min/Fixed): 3.3V
Current - Output: 1A
Frequency - Switching: 150kHz
Operating Temperature: -40°C ~ 125°C (TJ)
Quality and Safety Features
Over-temperature protection through thermal shutdown
Current limit to avoid over-current conditions
Compatibility
Mounted via surface mount technology
Compatible with TO-263-8, D2PAK (7 Leads + Tab), TO-263CA package types
Application Areas
Used in telecommunications, consumer electronics, and computing applications requiring efficient voltage regulation
Product Lifecycle
Status: Obsolete
Availability of replacements or upgrades for future-proofing needs should be checked as this product is being phased out.
Several Key Reasons to Choose This Product
Wide input voltage range suitable for different power environments
Fixed output simplifies power system design
Low switching frequency minimizes EMI concerns
Robust thermal and current management features ensure long-term reliability
Obsolete status may offer cost benefits for immediate needs without concerns for future design continuity