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汽车类SEPIC转换器提供4.5V /5.5A
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In today’s start-stop systems, it is common for battery voltages to dip well below the nominal 12V rating. PMP8903 represents a very common start-stop application where that battery voltage can drop as low as 5V, and a 5V output is still needed for CAN and also as an intermediate bus. This design also features two tiny synchronous low-voltage buck regulators generating 3.3V and 1.1V from the 5V intermediate rail, contributing to an overall solution size that is very compact for space-constrained automotive environments. For an additional output voltage version of the design, see PMP8903.2
特性
- 100% duty cycle capability
- 5V to 42V Input
- 5V output at 3.25A (LM3481 output)
- 1.1V output at 2A (TLV62065)
- 3.3V output at 1A (TLV62065)
- This example design is supported with design and test files
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