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 loaddecreases. 

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