參數(shù)資料
型號: LP3972SQX-5810
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 電源管理
英文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, QCC40
封裝: 5 X 5 MM, LLP-40
文件頁數(shù): 36/60頁
文件大?。?/td> 1171K
代理商: LP3972SQX-5810
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
0
1
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 Buck3 enable to SYS_EN or PWR_EN Logic Control pin
0 - Buck3 enable connected to PWR_EN
1 - Buck3 enable connected to SYS_EN, Default
5
R/W
B2ENC
Connects Buck2 enable to SYS_EN or PWR_EN Logic Control pin
0 - Buck2 enable connected to PWR_EN
1 - Buck2 enable connected to SYS_EN, Default
4
R/W
B1ENC
Connects Buck1 enable to SYS_EN or PWR_EN Logic Control pin
0 - Buck1 enable connected to PWR_EN, Default
1 - Buck1 enable connected to SYS_EN
3
R/W
L5EC
Connects LDO5 enable to SYS_EN or PWR_EN Logic Control pin
0 - LDO5 enable connected to PWR_EN, Default
1 - LDO5 enable connected to SYS_EN
2
R/W
L4EC
Connects LDO4 enable to SYS_EN or PWR_EN Logic Control pin
0 - LDO4 enable connected to PWR_EN
1 - LDO4 enable connected to SYS_EN, Default
1
R/W
L3EC
Connects LDO3 enable to SYS_EN or PWR_EN Logic Control pin
0 - LDO3 enable connected to PWR_EN
1 - LDO3 enable connected to SYS_EN, Default
0
R/W
L2EC
Connects LDO2 enable to SYS_EN or PWR_EN Logic Control pin
0 - LDO2 enable connected to PWR_EN
1 - LDO2 enable connected to SYS_EN, Default
41
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