STR-X6750F PDF Datasheet – Power IC for Quasi-Resonant

This post explains for the semiconductor STR-X6750.

The Part Number is STR-X6750F.

The function of this this is Power IC for Quasi-Resonant Type Switching Power Supply.

Package: TO-3PF-7L Type

Manufacturer: Sanken

Preview images :

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STR-X6750F image


The STR-X6750F is power IC for quasi-resonant type switching power supply, incorporating a power MOSFET and a controller IC. The product achieves high efficiency and low noise power supply systems by the quasi-resonant operation.



1. Quasi-resonant operation mode

(1) Achieves the optimal high efficiency and low noise power supply systems.

2. Current mode control

3.  Built-in PWM oscillator

(1) The PWM operates with the minimum frequency of around 22kHz, until the quasi-resonant signal becomes valid, reduces the stress on components at startup and load-shorted.

4. Built-in soft start function

5. Step-drive function, reducing switching noise


1. Specification :

(1) MOSFET 650V(MIN), 0.62Ω(MAX)



1. Home appliances

2. OA equipments

3. Industry machines

4. Communication devices

STR-X6750F Datasheet PDF