意法半导体’的单片式开关稳压器具有高达55 V的输入电压能力，在高开关频率下提供了高达4A的输出电流。
该IC产品系列由专用产品组成，能够满足每一个市场的需求：HV（高压）技术、工业和汽车应用所需的高可靠性和耐用性、小型化、任何负载下的高效率，以及消费类和计算机产品所需的高性能。
这些器件都嵌入了全套保护功能（过流、过压和过热），从而增加了MTBF（平均无故障时间），减少了外部元件的数量。
提供多种封装选项，从而为不同的应用实现了小型化和高散热性能。
Automotive grade buck switching regulators
To meet the specific requirements of the automotive market, ST has developed a new monolithic step-down asynchronous DC-DC converter family, qualified according to the AEC-Q100 specification guidelines.
The operating input voltage ranges from 4 to 36 V and the output voltage can be adjusted from 1.23 to 35 V. The output voltage has a ±3 % precision including line, load and temperature variations.
Extreme conversion ratios are supported thanks to the short minimum conduction time of the embedded power element (around 250 ns), allowing a low output voltage to be regulated even during an overshoot of the bus. The integrated P-channel MOSFET requires no external bootstrap capacitor and enables a 100 % duty cycle. The low RDS(on) (typical value of 250 mΩ) and the fast conduction times of the power element, combined with the high switching frequency (250/500 kHz), assure a very high efficiency under most application conditions.
