參數(shù)資料
型號(hào): NCP5218MNR2G
廠商: ON SEMICONDUCTOR
元件分類: 穩(wěn)壓器
英文描述: 2−in−1 Notebook DDR Power Controller
中文描述: 3 A SWITCHING CONTROLLER, 460 kHz SWITCHING FREQ-MAX, PDSO22
封裝: LEAD FREE, PLASTIC, DFN-22
文件頁數(shù): 18/31頁
文件大?。?/td> 463K
代理商: NCP5218MNR2G
NCP5218
http://onsemi.com
18
VCCA
VDDQEN
VTTEN
VTTEN is
Don’t Care
in S5
VDDQ
VDDQ
Soft
start
VTT
VTT in H
Z
VTT Soft
start
VTT Soft
start
PGOOD
Operating
Mode
t
hold
200 s
S5
S0
S3
S0
S5
VCCA goes
above 4.0 V to
enable the IC.
VDDQEN goes HIGH,
VDDQ and VTTREF
are enabled but not
activated until VIN
goes above threshold
of 3.0 V. VTTEN goes
HIGH, VTT is enabled
but not activated until
VDDQ is good.
VTTEN goes LOW
to activate S3 mode
and to turn off VTT.
Both VDDQEN and
VTTEN go LOW to
trigger S5 mode;
VDDQ, VTT, VTTREF
are disabled, then
INREGDDQ and
PGOOD goes LOW.
PGOOD
goes HIGH.
INREGDDQ goes
HIGH, VTT goes into
normal mode.
VTTEN goes
HIGH, VTT goes
into normal mode.
Figure 38. Powerup and Powerdown Timing Diagram
VIN
(VOCDDQ)
VTTREF
VIN goes above the
threshold, the VDDQ
and VTTREF go into
normal mode.
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