EN5339QI Просмотр технического описания (PDF) - Altera Corporation

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EN5339QI

3A PowerSoC Low Profile Synchronous Buck DC-DC Converter with Integrated Inductor

Altera Corporation 

The POK output can also be conveniently used as

an enable input of the next stage for power

sequencing of multiple converters.

Power-Up/Power-Down

During power-up, ENABLE should not be asserted

before PVIN, and PVIN should not be asserted

before AVIN. The PVIN should never be powered

when AVIN is off. During power down, the AVIN

EN5339QI

should not be powered down before the PVIN.

Tying PVIN and AVIN or all three pins (AVIN, PVIN,

and ENABLE) together during power up or power

down meets these requirements.

The EN5339QI supports startup into a pre-biased

output of up to 1.5V. The output of the EN5339QI

can be pre-biased with a voltage up to 1.5V when it

is first enabled.

06903

June 26, 2015

www.altera.com/enpirion, Page 13

Rev E

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