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LP3971 bảng dữ liệu(PDF) 24 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
tên linh kiện LP3971
Giải thích chi tiết về linh kiện  POWER MANAGEMENT UNIT FOR ADVANCED APPLICATION PROCESSORS
PDF  42 Pages
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nhà sản xuất  NSC [National Semiconductor (TI)]
Trang chủ  http://www.national.com
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LP3971 bảng dữ liệu(HTML) 24 Page - National Semiconductor (TI)

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I
2C Register Definitions (Continued)
Bit
Access
Name
Description
2
R
LDO2_OK
LDO_2 Output Voltage Status
0 = (VCC_LDO2) output voltage <90% of selected value
1 = (VCC_LDO2) output voltage >90% of selected value
1
R
LDO1_OK
LDO_1 Output Voltage Status
0 = (VCC_LDO1) output voltage <90% of selected value
1 = (VCC_LDO1) output voltage >90% of selected value
0
...
...
Reserved
VOLTAGE CHANGE CONTROL REGISTER 1 (VCC1) 8h’20
Bit
7654
3
2
10
Designation
B3VS
B3GO
B2VS
B2GO
Reserved
B2VS
B2GO
Reset Value
0000
0
0
00
VOLTAGE CHANGE CONTROL REGISTER 1 (VCC1) 8h’20 DEFINITIONS
Bit
Access
Name
Description
7
R/W
B3VS
Buck 3 Target Voltage Select
0 = Buck 3 Output Voltage to B1TV1
1 = Buck 3 Output Voltage to B1TV2
6
R/W
B3GO
Start Buck 3 Voltage Change
0 = Hold Buck 3 Output Voltage at current level
1 = Ramp Buck 3 Output Voltage as selected by B3VS
5
R/W
B2VS
Buck 2 Target Voltage Select
0 = Buck 2 Output Voltage to B2TV1
1 = Buck 2 Output Voltage to B2TV2
4
R/W
B2GO
Start Buck 2 Voltage Change
0 = Hold Buck 2 Output Voltage at current level
1 = Ramp Buck 2 Output Voltage as selected by B2VS
3:2
...
...
Reserved
1
R/W
B1VS
Buck 1 Target Voltage Select
0 = Buck 2 Output Voltage to B1TV1
1 = Buck 2 Output Voltage to B1TV2
0
R/W
B1GO
Start Buck 1 Voltage Change
0 = Hold Buck 3 Output Voltage at current level
1 = Ramp Buck 3 Output Voltage as selected by B1VS
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