NCV890100集成电路（IC）的DCDC开关稳压器规格书PDF中文资料

NCV890100属于集成电路（IC）的DCDC开关稳压器。由安森美半导体制造生产的NCV890100稳压器 - DC-DC 开关稳压器DC-DC 开关稳压器 PMIC（电源管理集成电路）产品族中的产品是元器件级设备，用于需要稳定 DC 输入电压和/或将其转换为不同幅度的输出电压的应用。这些器件与称为“控制器”PMIC 的类似产品的区别在于集成了主开关元件，设备提供的电力会通过该元件。

The NCV890100 is a fixed−frequency, monolithic, Buck switching

regulator intended for Automotive, battery−connected applications

that must operate with up to a 36 V input supply. The regulator is

suitable for systems with low noise and small form factor

requirements often encountered in automotive driver information

systems. The NCV890100 is capable of converting the typical 4.5 V to

18 V automotive input voltage range to outputs as low as 3.3 V at a

constant switching frequency above the sensitive AM band,

eliminating the need for costly filters and EMI countermeasures. The

NCV890100 also provides several protection features expected in

Automotive power supply systems such as current limit, short circuit

protection, and thermal shutdown. In addition, the high switching

frequency produces low output voltage ripple even when using small

inductor values and an all−ceramic output filter capacitor − forming a

space−efficient switching regulator solution.

特性 Features

• Internal N−Channel Power Switch

• Low VIN Operation Down to 4.5 V

• High VIN Operation to 36 V

• Withstands Load Dump to 40 V

• 2 MHz Free−running Switching Frequency

• Logic Level Enable Input Can be Directly Tied to Battery

• 1.4 A (min) Cycle−by−Cycle Peak Current Limit

• Short Circuit Protection Enhanced by Frequency Foldback

• ±1.75 Output Voltage Tolerance

• Output Voltage Adjustable Down to 0.8 V

• 1.4 Millisecond Internal Soft−Start

• Thermal Shutdown (TSD)

• Low Shutdown Current

• Wettable Flanks DFN

• NCV Prefix for Automotive and Other Applications Requiring

Unique Site and Control Change Requirements; AEC−Q100

Qualified and PPAP Capable

• These Devices are Pb−Free and are RoHS Compliant

Applications

• Audio

• Infotainment

• Safety − Vision Systems

• Instrumentation