MIC2171WT集成电路（IC）的稳压器-DC-DC开关稳压器规格书PDF中文资料

MIC2171WT属于集成电路（IC）的稳压器-DC-DC开关稳压器。由微芯科技股份有限公司制造生产的MIC2171WT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。

General Description

The MIC2171 is a complete 100 kHz SMPS

current-mode controller with an internal 65V 2.5A

power switch.

Although primarily intended for voltage step-up

applications, the floating switch architecture of the

MIC2171 makes it practical for step-down, inverting,

and Cuk configurations, as well as isolated topologies.

Operating from 3V to 40V, the MIC2171 draws only

7 mA of quiescent current, making it attractive for

battery-operated applications.

The MIC2171 is available in a 5-pin TO-220 or TO-263

package that allows –40°C to +85°C ambient

temperature operation.

特性 Features

• 2.5A, 65V Internal Switch Rating

• 3V to 40V Input Voltage Range

• Current Mode Operation, 2.5A Peak

• Internal Cycle-by-Cycle Current Limit

• Twice the Frequency of the LM2577

• Low External Electronic Components Count

• Suitable for Most Switching Topologies

• 7 mA Quiescent Current (Operating)

• Fits LT1171/LM2577 TO-220 and TO-263 Sockets

Applications

• Laptop/Palmtop Computers

• Battery Operated Equipment

• Handheld Instruments

• Off-Line Converter up to 50W (Requires External

Power Switch)

• Predriver for Higher Power Capability