The GreenChipTM II is the second generation of green Switched Mode Power
Supply (SMPS) control ICs. A high level of integration leads to a cost effective power
supply with a low number of external components.
The special built-in green functions allow the efficiency to be optimum at all power
levels. This holds for quasi-resonant operation at high power levels, as well as fixed
frequency operation with valley switching at medium power levels. At low power (standby)
levels, the system operates at a reduced frequency and with valley detection.
Highly efficient and reliable supplies can easily be designed using the
GreenChipTMII control IC.