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DA9211 Datasheet(PDF) 37 Page - Dialog Semiconductor

Part # DA9211
Description  Integrates two dual-phase buck converters
PDF  74 Pages
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Manufacturer  DIALOG [Dialog Semiconductor]
Direct Link  http://www.dialog-semiconductor.com/
Logo DIALOG - Dialog Semiconductor

DA9211 Datasheet(HTML) 37 Page - Dialog Semiconductor

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DA9211 and DA9212
Datasheet
Company confidential
Data sheet
Version <3.0>
<07-Jan-2015>
CFR0011-120-00 Rev 3
37 of 74
© 2015 Dialog Semiconductor GmbH
A specific power-good port for each of the buck converters can be configured via BUCKA_PG_SEL
and BUCKB_PG_SEL. The respective port must be configured as GPO for correct operation. If
assigned to the same GPO, it is necessary that the power-good indicators for Buck A and Buck B are
both active (supply voltages in range) to assert the overall power-good. The signal will be released
as soon as one of the single power-good signals is not active (that is, at least one supply is out of
range).
The power good signalling should not be used in conjunction with fast start up rates, configured in
BUCKx_UP_CTRL register fields.
Whenever the GPIO unit is off (POR or OFF Mode) all ports are configured as open drain active high
(pass device switched off, high impedance state). When leaving POR the pull-up or pull-down
resistors will be configured from register GPIOx_PUPD.



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