参数资料
型号: NCP5203MNR2
厂商: ON Semiconductor
文件页数: 9/10页
文件大小: 0K
描述: IC CTRLR PWR DDR DUAL 5X6 18-DFN
产品变化通告: Product Obsolescence 30/Sept/2009
标准包装: 2,500
应用: 控制器,DDR
输入电压: 4.5 V ~ 5.5 V
输出数: 2
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 18-VFDFN 裸露焊盘
供应商设备封装: 18-DFN(5x6)
包装: 带卷 (TR)
其它名称: NCP5203MNR2OS
NCP5203
5VDUAL
VDDQEN
VTTEN IS
VTTEN
Soft
Start
DON’T CARE
IN S5
VDDQ
10ms
VTT in H?Z
VTT
PGOOD
OPERATING
MODE
t hold ~ 200 m s
t hold ~ 200 m s
S5
5VDUAL
comes out
S0
PGOOD goes HIGH.
INREGVTT goes HIGH.
S3
VTTEN goes LOW to
activate S3 mode and
S0
PGOOD goes
HIGH.
S5
Both VDDQEN and
VTTEN go LOW to
INREGDDQ goes HIGH,
INREGVTT
goes HIGH.
of UVLO
VTT goes into normal mode.
VDDQEN goes
HIGH, VDDQ is
activated. VTTEN
goes HIGH, VTT is
not activated until
to turn off VTT, then
INREGVTT goes LOW,
PGOOD goes LOW.
VTTEN goes HIGH,
VTT goes into
normal mode.
trigger S5 mode; VDDQ
and VTT is disabled,
then INREGDDQ and
INREGVTT go LOW,
PGOOD goes LOW.
VDDQ is Good.
Figure 3. Powerup and Powerdown Timing Diagram
http://onsemi.com
9
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