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MIC2183 - Low Voltage Synchronous Buck PWM Controller

Datasheet Summary

Description

Micrel’s MIC2183 is a high efficiency PWM synchronous buck control IC.

With its wide input voltage range of 2.9V to 14V, the MIC2183 can be used to efficiently step voltages down in 1- or 2-cell Li Ion battery powered applications, as well as in fixed 3.3V, 5V, or 12V systems.

Features

  • an oscillator output, FreqOut, which can be used to implement a simple charge pump in low voltage.

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Datasheet Details

Part number MIC2183
Manufacturer Micrel Semiconductor
File Size 142.35 KB
Description Low Voltage Synchronous Buck PWM Controller
Datasheet download datasheet MIC2183 Datasheet
Additional preview pages of the MIC2183 datasheet.

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Full PDF Text Transcription

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MIC2183 Micrel, Inc. MIC2183 Low Voltage Synchronous Buck PWM Control IC General Description Micrel’s MIC2183 is a high efficiency PWM synchronous buck control IC. With its wide input voltage range of 2.9V to 14V, the MIC2183 can be used to efficiently step voltages down in 1- or 2-cell Li Ion battery powered applications, as well as in fixed 3.3V, 5V, or 12V systems. Efficiencies over 90% are achievable over a wide range of load conditions with the MIC2183’s PWM control scheme. The operating frequency can be divided by two by raising the FREQ/2 pin to VDD. This allows the user to optimize efficiency versus board space. It also allows the MIC2183 to be externally synchronized to frequencies below its nominal 400KHz.
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