5V Step Down Voltage Regulator, 7V to 40V Input, 1A, TO-263

The Texas Instruments 5V Step Down Voltage Regulator provides all the active functions required for a step-down (buck) switching regulator. Capable of driving a 1A load, this monolithic integrated circuit offers excellent line and load regulation, making it an efficient solution for power management.

Designed for high efficiency, the device features a 52kHz fixed frequency internal oscillator and TTL shutdown capability, which allows for a low power standby mode. For robust operation, it includes built-in thermal shutdown and current limit protection, safeguarding the component under demanding conditions.

This integrated circuit is perfectly suited for applications requiring a stable and regulated 5V power supply from a higher voltage source. Its surface-mount design allows for compact PCB integration, ideal for space-constrained electronic assemblies. The combination of thermal protection, current limiting, and low power standby ensures both safety and energy efficiency during operation.

Key Specifications

• Topology: Buck (Step Down)
• Input Voltage: 7V to 40V
• Output Voltage: Fixed 5V
• Output Current: 1A
• Switching Frequency: 52kHz
• Efficiency: 77%
• Operating Temperature: -40°C to 125°C
• Package: TO-263 (D2PAK)
• Dimensions: 43 mm x 33 mm x 15 mm
• Weight: 2.152 grams