NS launches a new hysteresis type P-field-effect transistor buck controller 1

National Semiconductor Company (NS) has launched a hysteresis P-FET buck controller that supports high-efficiency systems. This controller chip with the model LM3475 adopts an extremely compact SOT23-5 package, which is characterized by a hysteresis control circuit that can be designed with a simplified system. As long as the system design engineer uses this chip, there is no need to provide external compensation for the system, ensuring that multiple different components can operate stably, and the system can make extremely fast transient responses. The hysteresis control circuit can support high-efficiency operation even under extremely low loads. The advantage of the P-field-effect transistor structure is that it can reduce the number of required components, increase the duty cycle to 100%, and only generate extremely low voltage drop during operation.transistor

This controller chip is suitable for a variety of typical applications, including TFT monitors, automotive personal computer systems, automotive security navigation systems, laptop backup power supplies, battery powered portable electronic products, and power distribution systems transistor