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MIC3808 - Push-Pull PWM Controller

General Description

The MIC3808 and MIC3809 are a family of complementary output push-pull PWM control ICs that feature high speed and low power consumption.

Key Features

  • Dual output drive stages in push-pull configuration Leading edge current-sense blanking 130µA typical start-up current 1mA typical run current Operation to 1MHz Internal soft start On-chip error amplifier with 4MHz gain bandwidth product.
  • On-chip VDD clamping.
  • Output drive stages capable of 500mA peak source current, 1A peak sink current.

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Datasheet Details

Part number MIC3808
Manufacturer MICREL
File Size 175.44 KB
Description Push-Pull PWM Controller
Datasheet download datasheet MIC3808 Datasheet

Full PDF Text Transcription (Reference)

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MIC3808/3809 www.DataSheet4U.com MIC3808/3809 Micrel Push-Pull PWM Controller General Description The MIC3808 and MIC3809 are a family of complementary output push-pull PWM control ICs that feature high speed and low power consumption. The MIC3808/9 are ideal for telecom level (36V to 75V) isolated step down dc/dc conversion applications where high output current, small size, and high efficiency are required. The dual-ended push-pull architecture of the MIC3808/9 allows more efficient utilization of the transformer than singleended topologies, allowing smaller size dc/dc solutions. Additionally, the out-of-phase push-pull topology allows a higher effective duty cycle, reducing input and output ripple as well as stress on the external components.