Description
This highly integrated PWM controller provides several enhancements designed to meet the low standby-power
needs of low-power SMPS. To minimize standby power consumption, a proprietary green-mode function
provides off-time modulation to linearly decrease the switching frequency under light-load conditions. This
green-mode function enables the power supply to meet even strict power conservation requirements.
FEATUREs
Green-Mode PWM
Supports the “Blue Angel” Eco Standard
Low Start-up Current: 9µA
Low Operating Current: 3mA
Leading-Edge Blanking
Constant Output Power Limit
Universal Input
Built-in Synchronized Slope Compensation
Current Mode Operation
Cycle-by-cycle Current Limiting
Under-Voltage Lockout (UVLO)
Programmable PWM Frequency with Frequency Hopping
VDDOver-Voltage Protection (Latch off)
Gate Output Voltage Clamped at 17V
Low Cost
Few External Components Required
Small SOT-26 Package
APPLICATIONs
Power Adaptors
Open-Frame SMPS