A8450集成电路（IC）的线性稳压器控制器规格书PDF中文资料

A8450属于集成电路（IC）的线性稳压器控制器。由Allegro MicroSystems制造生产的A8450稳压器 - 线性 + 开关此产品族中的产品用于构建执行 DC-DC 转换或电压调节功能的电路，采用的是开关模式和线性稳压器功能的组合。虽然具体的拓扑各不相同，但此类产品的主要目的是将开关模式技术的效率优势与线性稳压技术的低噪声特性结合在一起。

FEATURES

„ 6 V to 45 V input range

„ dc-to-dc buck converter with 5.7 V output

„ Overcurrent protection with foldback, and undervoltage lockout (UVLO)

„ Dual 5 V outputs

– Digital 5 V ±2, 200 mA

– Analog 5 V, 200 mA

– Short-to-supply protection on analog regulator

– Analog to digital regulator output tracking < 0.5, throughout

operating temperature range

„ 3.3 V linear regulator, with foldback current limit

„ Adjustable 1.2 V to 3.3 V linear regulator, adjustable foldback current limit

„ Ignition switch enable; Sleep mode

„ 100 duty cycle operation for low input voltages

„ Power OK output

„ –40°C to 135°C ambient operating temperature range