The MIC4576-3.3WT is a fixed and adjustable BiCMOS step-down (buck) switch-mode voltage regulators. The 200 kHz MIC4576 duplicates the pinout and function of the 52 kHz LM2576. The higher switching frequency may allow up to a 2:1 reduction in output filter inductor size.
Features:
Fixed 200 kHz operation
3.3 V, 5 V, and adjustable output versions
Voltage over specified line and load conditions:
Fixed version: ±3% max. output voltage
Adjustable version: ±2% max. feedback voltage
Guaranteed 3 A switch current
Wide 4 V to 36 V input voltage range
Wide 1.23 V to 33 V output voltage range
Requires minimum external components
< 200 µA typical shutdown mode
75% efficiency (adjustable version > 75% typical)
Standard inductors are 25% of typical LM2576 values
Thermal shutdown
Overcurrent protection
100% electrical thermal limit burn-in
Applications:
Simple high-efficiency step-down (buck) regulator
Efficient preregulator for linear regulators
On-card switching regulators
Positive-to-negative converter (inverting buck-boost)
Battery Charger
Negative boost converter
Step-down to 3.3 V for Intel Pentium™ and similar microprocessors
Категория:
Импульсные регуляторы
Артикул:
4975496
Наличие:
358
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Package Style:
TO-220-5
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Mounting Method:
Flange Mount
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ECCN:
EAR99
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Информация PCN:
View PCN Information
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Статус части:
Active
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Размер минимального заказа, шт.:
450
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Производитель:
Microchip
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Тикер производителя:
MCP
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Модель модификации:
MIC4576-3.3WT
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Модель:
tube
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Артикул (SKU):
4975496
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Ссылка на предложение поставщика:
https://www.futureelectronics.com/p/semiconductors--analog--regulators-reference--switching-regulators/mic4576-3-3wt-microchip-4975496
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Switching Frequency-Max:
200kHz
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Input Voltage:
4V to 36V
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Output Current-Max:
3A
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Topology:
Buck
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Скачать Datasheet mic4576.pdf:
http://ww1.microchip.com/downloads/en/DeviceDoc/mic4576.pdf
