GENERAL DESCRIPtiON

 SL3150 is a Buck regulator that

provides accurate constant voltage (CV)

regulation without opto-coupler. It has an

integrated 150V MOSFET to simplify the

structure and reduce costs. These features

make it an ideal regulator for off-line low

power applications, such as home

appliances and standby power.

 SL3150 is a green -mode-operation

regulator. Both the peak current and

switching frequency decrease as the load

decreases. This feature provides excellent

efficiency at light load, and improves the

overall average efficiency. SL3150 features

various protections, including thermal

shutdown (OTP), VCC under-voltage

lockout (UVLO), overload protection (OLP),

short-circuit protection (SCP), and open

loop protection.

 SL3150 is offered in SOP7 package.

FEATURES

 Primary-Side CV control.

 Wide input range: 15V~150V

 Integrated 150V/5.0Ω MOSFET and

 current source

 < 30mW no-load power consumption

 Fixed 5.0V output voltage

 Up to 400mA output Current

 Low VCC Operating Current

 Frequency foldback

 Limited maximum frequency

 Internally biased VCC

 OTP, UVLO, OLP, SCP, Open loop

APPLICATIONS

 Standby power

 E-bike applications

 Industrial controls

 Consumer electronics

TYPICAL APPLICATION