PFS7623H [Power Integrations]

HiperPFS-4 devices eliminate the need for external current sense resistors and use an innovative control technique that adjusts switching frequency over output load, input line voltage, and input line cycle. This maximizes efficiency over the entire load range, particularly at light loads, and minimizes EMI filtering requirements. The devices feature integrated non-linear error amplifier for enhanced load transient response, user programmable Power Good (PG) signal, and user selectable power limit functionality. They include comprehensive protection features such as UV, OV, brown-in/out, and hysteretic thermal shutdown. The innovative variable frequency, continuous conduction mode operation minimizes switching losses and reduces component count and board footprint.