The HFC0310A is a flyback controller with configurable fixed-frequency operation. The controller uses peak current mode to provide excellent transient response and ease loop compensation. When the output power (P_OUT) decreases, leading to the FB voltage (V_FB) to drop to the falling FB threshold at which the regulator enters burst mode (V_{FB_BUR_L}), the controller enters burst mode to reduce standby power consumption.

An external capacitor connected between the FSET and GND pins configures the switching frequency (f_SW). Otherwise, the HFC0310A uses a frequency shaping function to significantly reduce the noise level and EMI filter cost.

The HFC0310A provides various protections, including thermal shutdown, VCC voltage (V_CC) under-voltage lockout (UVLO), overload protection (OLP), over-voltage protection (OVP), and short-circuit protection (SCP).

The HFC0310A is available in an SOIC-8 package.