2W, low cost constant voltage adapter power supply design

1.5PF SOT23-6 Low Capacitance 5V Breakdown Voltage 6V SRV05

Probe current voltage pin 420*4450 head diameter 5.0 over current current and voltage pin

Heng Jiaxing AO3401

Shunuo varistor / ESD varistor / product complete / Sunlord first-class agent

Summary:

The flyback converter using LinkSwitch-XT provides 2W of precisely regulated constant voltage output. It also meets the requirements for load efficiency and no-load power consumption in all energy efficiency standards (CEC external power supplies).

design feature

• Constant voltage solution with low cost and low component count - 20 components
• Patented IC design and transformer winding technology enable drain node clampless design (Clampless?)
• ±5% accuracy over-temperature protection threshold - self-recovery with hysteresis - to ensure PCB board temperature is within safe limits
• Automatic restart: protection when output short circuit and loop open loop
• IC creepage distance is greater than 3.2 mm: Prevents arcing in high humidity applications
• Easily meet all external power (EPS) energy efficiency standards
• Have sufficient margin to meet CISPR-22 Class B EMI requirements

2W low cost constant voltage adapter power supply PCB board

2W low cost constant voltage adapter power supply circuit diagram

2W low cost constant voltage adapter power supply PCB layout

2W low cost constant voltage adapter power supply component list

See the uploading documentation for details (click to download)