Power Integrations introduced LinkSwitch-TNZ, a new switching power supply IC that combines offline power conversion, lossless zero-crossing detection and optionally, X-capacitor discharge functions in a compact SO-8C package. The highly efficient IC can be used for non-isolated buck and buck-boost power supplies up to 575 mA output current and provides up to 12W output for universal-input isolated flyback designs.
LinkSwitch-TNZ ICs provide very high light-load efficiencies, enabling more system features to be powered while meeting stringent standby regulations. They also reduce component count by 40% or more when compared to discrete designs.
The chips enable ±3% regulation across line and load, no-load consumption of less than 30 mW with external bias and have an IC standby current of less than 100 µA. Parts are simple to design in, feature an integrated soft start and work with both isolated and non-isolated topologies.
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