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NCP5203MNR2G Datasheet(PDF) 9 Page - ON Semiconductor

Part # NCP5203MNR2G
Description  2-in-1 DDR Power Controller
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Manufacturer  ONSEMI [ON Semiconductor]
Direct Link  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

NCP5203MNR2G Datasheet(HTML) 9 Page - ON Semiconductor

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NCP5203
http://onsemi.com
9
5VDUAL
VDDQEN
VTTEN
VDDQ
VTT
PGOOD
OPERATING
MODE
Soft
Start
10ms
thold ∼ 200 ms
VTT in H−Z
thold ∼ 200 ms
S0
S3
S0
S5
5VDUAL
comes out
of UVLO
VDDQEN goes
HIGH, VDDQ is
activated. VTTEN
goes HIGH, VTT is
not activated until
VDDQ is Good.
INREGDDQ goes HIGH,
VTT goes into normal mode.
PGOOD goes HIGH.
VTTEN goes LOW to
activate S3 mode and
to turn off VTT, then
INREGVTT goes LOW,
PGOOD goes LOW.
PGOOD goes
HIGH.
Both VDDQEN and
VTTEN go LOW to
trigger S5 mode; VDDQ
and VTT is disabled,
then INREGDDQ and
INREGVTT go LOW,
PGOOD goes LOW.
VTTEN goes HIGH,
VTT goes into
normal mode.
Figure 3. Powerup and Powerdown Timing Diagram
S5
VTTEN IS
DON’T CARE
IN S5
INREGVTT goes HIGH.
INREGVTT
goes HIGH.


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