MIC2128YML-T5

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The MIC2128YML-T5 is a low-noise, synchronous, step-down, DC-DC converter optimized for a wide range of applications requiring high efficiency and transient response. It features a fixed switching frequency of 330kHz, allowing the use of small external components, and a soft-start startup feature to reduce input surge current. The power stage contains an integrated N-Channel MOSFET with a rated current of 11A and an integrated P-Channel MOSFET with a rated current of 0.8A. The MIC2128YML-T5 is available in a thin SOT-23-5L package.

The MIC2128YML-T5 voltage regulator works by controlling the on-time and off-time of upper and lower MOSFETs to step down input voltage and convert it to desired output voltage. The device contains a very accurate voltage reference and a precision error amplifier which is used to compare the reference voltage with feedback which is proportional to output voltage. This comparison is used to precisely open or shut down the upper and lower MOSFETs in order to control the output voltage. The MIC2128YML-T5 also has additional features such as pulse-width modulation (PWM), soft-start, hiccup over-current protection and low-power shutdown.

The MIC2128YML-T5 DC-DC switching controller can be used in applications that require high efficiency and high power density, such as ultra-mobile PC and tablet computers, personal media players, gaming consoles, point-of-load converters, portable instrumentation, game pads, industrial and automotive control systems. It can also be used in broad range of other DC-DC applications, including wall adapter and battery powered systems, such as notebook PCs, wireless LAN and cellular phone infrastructure, and automotive applications.

In summary the MIC2128YML-T5 DC DC Switching Controller is an excellent small-size and low-noise device that is executed with low quiescent current. It can handle up to 11A output currents which makes it suitable for a wide range of applications. The device includes integrated N-Channel and P-Channel MOSFETs that can reduce external component count and minimize power loss. Additionally, it offers several features such as soft-start, variable frequency operation, PWM support and low-power shutdown. The MIC2128YML-T5 offers improved efficiency with low noise, making it an ideal choice for a number of applications.

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