NCP4306AAHZZZADR2G

The NCP4306AAHZZZADR2G from ON Semiconductor is a versatile switching controller designed for secondary-side synchronous rectification in high-efficiency switch-mode power supplies (SMPS). It is suitable for topologies such as DCM, CCM flyback, quasi-resonant flyback, forward, and half-bridge resonant LLC.

This device features precise zero current detection, a typical 15 ns turn-off delay, and a rugged current sense pin rated up to 200 V. It offers adjustable or fixed minimum on-time and off-time with ringing detection, along with a self-synchronization capability for reliable operation. The NCP4306AAHZZZADR2G supports GaN transistors with its 5 V gate clamp and provides 7 A / 2 A peak current sink/source drive capability.

With an operating voltage range up to 35 V and a maximum operating frequency of 1 MHz, it is well-suited for applications requiring high efficiency, including notebook adapters, high-power density AC/DC power supplies, and LCD TVs. The automatic light-load disable mode further enhances efficiency at lighter loads. The NCP4306AAHZZZADR2G is available in an 8-SOIC package and is surface-mountable.

Key electrical specifications include an input voltage range up to 35 V, a switching frequency of 1 MHz, and a peak output current of 7 A. It operates within a temperature range of -40°C to 125°C.