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MIC2169A - PWM Synchronous Buck Controller

Description

The MIC2169A is a high-efficiency, simple to use 500kHz PWM synchronous buck control IC housed in a small MSOP10 package.

The MIC2169Aallows compact DC/DC solutions with a minimal external component count and cost.

Features

  • 3V to 14.5V input voltage range.
  • Adjustable output voltage down to 0.8V.
  • Up to 95% efficiency.
  • 500kHz PWM operation.
  • Adjustable current limit senses high-side N-Channel MOSFET current.
  • No external current-sense resistor.
  • Adaptive gate drive increases efficiency.
  • Overvoltage protection protects the load in fault conditions.
  • Dual mode current limit speeds up recovery time.
  • Hiccup mode short-circuit.

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Datasheet Details

Part number MIC2169A
Manufacturer Micrel Semiconductor
File Size 826.12 KB
Description PWM Synchronous Buck Controller
Datasheet download datasheet MIC2169A Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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MIC2169A MIC2169A Micrel 500kHz PWM Synchronous Buck Control IC General Description The MIC2169A is a high-efficiency, simple to use 500kHz PWM synchronous buck control IC housed in a small MSOP10 package. The MIC2169Aallows compact DC/DC solutions with a minimal external component count and cost. The MIC2169A operates from a 3V to 14.5V input, without the need of any additional bias voltage. The output voltage can be precisely regulated down to 0.8V. The adaptive all N‑Channel MOSFET drive scheme allows efficiencies over 95% across a wide load range. The MIC2169A senses current across the high-side NChannel MOSFET, eliminating the need for an expensive and lossy current-sense resistor.
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