Mornsun K7803-500R3-LB DC-DC Converter (3.3V Switching Regulator Module)

The Mornsun K7803-500R3-LB is a high-efficiency non-isolated DC-DC switching regulator designed as a drop-in replacement for traditional LM78xx linear regulators. It provides a stable 3.3V output with up to 500mA output current while offering significantly higher efficiency, lower heat generation, and compact SIP package construction. It is widely used in industrial control systems, instrumentation, embedded electronics, communication equipment, and power management applications.

Key Features -

• High-efficiency DC-DC switching regulator

• Stable 3.3V output voltage

• Output current up to 500mA

• Wide input voltage range

• SIP package design

• Short-circuit protection

• No heat sink required in most applications

• Pin compatible with LM78xx regulators

• Low no-load current consumption

• Compact and lightweight construction

Specifications -

• Product type - DC-DC Switching Regulator

• Brand - Mornsun

• Model - K7803-500R3-LB

• Output voltage - 3.3V DC

• Output current - 500mA

• Input voltage range - 4.75V to 36V DC

• Efficiency - Up to 95%

• Package type - SIP

• Converter type - Non-Isolated Buck Converter

• Mounting type - Through Hole Mount

• Protection features - Output Short Circuit Protection

• Additional features - LM78xx pin compatibility and low power dissipation

Applications -

• Industrial automation systems

• Embedded controllers

• Instrumentation equipment

• Communication devices

• Sensor power supplies

• Battery-powered electronics

• Microcontroller development boards

• Power management circuits