描述 Description

MIC2196 is a high efficiency PWM boost control IC housed in the SO-8 package. The MIC2196 is optimized for low input-voltage applications. With its wide input voltage range of 2.9V to 14V, the MIC2196 can be used to efficiently boost voltages in 3.3V, 5V, and 12V systems, as well as 1- or 2-cell Li-Ion battery powered applications. Its powerful 2Ω output driver allows the MIC2196 to drive large external MOSFETs.The MIC2196 is ideal for space-sensitive applications. The device is housed in the space-saving SO-8 package, whose low pin-count minimizes external components. Its 400kHz PWM operation allows a small inductor and small output capacitors to be used. The MIC2196 can implement all-ceramic capacitor solutions.Efficiencies over 90% are achievable over a wide range of load conditions with the MIC2196's PWM boost control scheme. Its fixed frequency PWM architecture also makes the MIC2196 is ideal for noise-sensitive telecommunications applications.MIC2196 features a low current shutdown mode of 1μA and programmable undervoltage lockout.The MIC2196 is available in an 8-pin SOIC package with a junction temperature range from -40°C to +125°C.

特性 Features

? 2.9V to 14V input voltage range
? >90% efficiency
? 2Ω output driver
? 400kHz oscillator frequency
? PWM current mode control
? 0.5μA micro-power shutdown
? 2.9V to 14V input voltage range
? >90% efficiency
? 2Ω output driver
? 400kHz oscillator frequency
? PWM current mode control
? 0.5μA micro-power shutdown

簡介

MIC2196屬于集成電路（IC）的PMIC-穩(wěn)壓器-DCDC開關(guān)式控制器。由制造生產(chǎn)的MIC2196DC-DC 開關(guān)控制器PMIC（電源管理集成電路）DC 到 DC 開關(guān)式控制器是用于高效率電路的穩(wěn)壓 IC，其配置為生成高于（突升或步升）或低于（突降或步降）輸入電源的輸出電源電壓。其他拓?fù)浣Y(jié)構(gòu)可能包括：降壓-升壓、反激、正激、Cuk、SEPIC、全橋、半橋和推挽式。這些器件不同于需要最小電壓并“燒盡”多余電壓的線性穩(wěn)壓器。