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LP3972 bảng dữ liệu(PDF) 41 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
tên linh kiện LP3972
Giải thích chi tiết về linh kiện  Power Management Unit for Advanced Application Processors
PDF  59 Pages
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nhà sản xuất  NSC [National Semiconductor (TI)]
Trang chủ  http://www.national.com
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LP3972 bảng dữ liệu(HTML) 41 Page - National Semiconductor (TI)

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I
2C Compatible Interface (Continued)
LOGIC OUTPUT ENABLE REGISTER (LOER) 8H’84
Bit
7
6*
5*
4*
3*2*1*0*
Designation
Reserved
B3ENC
B2ENC
B1ENC
L5EC
L4EC
L3EC
L2EC
Reset Value
0
1
1
0
0111
Note: ** denotes one time factory programmable EPROM registers for default values
LOGIC OUTPUT ENABLE REGISTER (LOER) DEFINITIONS 8H’84
Bit
Access
Name
Description
7
—
—
Reserved
6
R/W
B3ENC
Connects Buck 3 enable to SYS_EN or PWR_EN Logic Control pin
0 - Buck 3 enable connected to PWR_EN
1 - Buck 3 enable connected to SYS_EN, Default
5
R/W
B2ENC
Connects Buck 2 enable to SYS_EN or PWR_EN Logic Control pin
0 - Buck 2 enable connected to PWR_EN
1 - Buck 2 enable connected to SYS_EN, Default
4
R/W
B1ENC
Connects Buck 1 enable to SYS_EN or PWR_EN Logic Control pin
0 - Buck 1 enable connected to PWR_EN, Default
1 - Buck 1 enable connected to SYS_EN
3
R/W
L5EC
Connects LDO5 enable to SYS_EN or PWR_EN Logic Control pin
0 - LDO 5 enable connected to PWR_EN, Default
1 - LDO 5 enable connected to SYS_EN
2
R/W
L4EC
Connects LDO4 enable to SYS_EN or PWR_EN Logic Control pin
0 - LDO 4 enable connected to PWR_EN
1 - LDO 4 enable connected to SYS_EN, Default
1
R/W
L3EC
Connects LDO3 enable to SYS_EN or PWR_EN Logic Control pin
0 - LDO 3 enable connected to PWR_EN
1 - LDO 3 enable connected to SYS_EN, Default
0
R/W
L2EC
Connects LDO2 enable to SYS_EN or PWR_EN Logic Control pin
0 - LDO 2 enable connected to PWR_EN
1 - LDO 2 enable connected to SYS_EN, Default
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