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