LM2596S 5V Fixed Step Down Switching Regulator IC TO263-5

The LM2596S 5V Fixed Step Down Switching Regulator IC TO263-5 is a high-performance step-down (buck) switching regulator IC designed for delivering a fixed 5V output with high efficiency and low heat generation.

Ideal for powering 5V circuits from higher voltage sources, this IC is commonly used in DC-DC power supply modules, Arduino projects, industrial equipment, and embedded systems.

Features:

• Fixed 5V Output – No need for external voltage setting components
• High Efficiency – Up to 90% under optimal conditions
• Input Voltage Range – 7V to 40V
• Output Current – Up to 3A continuous load
• Thermal Shutdown & Current Limiting – Built-in protection features
• Integrated Oscillator – 150 kHz switching frequency
• Standard TO-263-5 (D2PAK) Package – Ideal for PCB mounting with heat dissipation
• Low Standby Current – Efficient in low-load applications

Specifications:

• Model: LM2596S-5.0
• Make: HGSemi
• Regulator Type: Buck (Step Down)
• Output Voltage: Fixed 5V
• Input Voltage Range: 7V to 40V
• Max Output Current: 3A
• Efficiency: Up to 90% (depending on input voltage and load)
• Switching Frequency: 150 kHz
• Package Type: TO-263-5 (SMD)
• Thermal Shutdown: Yes
• Short Circuit Protection: Yes
• Operating Temperature Range: -40°C to +125°C

Applications:

• Power supplies for Arduino, ESP32, Raspberry Pi (via 5V rail)
• Step-down voltage regulator in DIY electronics
• Battery-powered projects requiring efficient 5V output
• Industrial and automotive 5V circuits
• Replacement for linear regulators to reduce heat and power loss
• Embedded systems, microcontroller boards, and LED drivers

Package Includes:

• 1 x LM2596S 5V step down switching regulator IC