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LP3971 Datasheet(PDF) 28 Page - Texas Instruments

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Part # LP3971
Description  Power Management Unit for Advanced Application Processors
PDF  52 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

LP3971 Datasheet(HTML) 28 Page - Texas Instruments

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LP3971
SNVS432V – JANUARY 2006 – REVISED MAY 2013
www.ti.com
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 B3TV1
1 = Buck 3 Output Voltage to B3TV2
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 1 Output Voltage to B1TV1
1 = Buck 1 Output Voltage to B1TV2
0
R/W
B1GO
Start Buck 1 Voltage Change
0 = Hold Buck 1 Output Voltage at current level
1 = Ramp Buck 1 Output Voltage as selected by B1VS
BUCK1 TARGET VOLTAGE 1 REGISTER (B1TV1) 8H'23
Bit
7
6
5
4
3
2
1
0
Designation
Reserved
Buck 1 Output Voltage (B1OV)**
Reset Value
0
0
0**
0**
1**
1**
0**
1**
BUCK1 TARGET VOLTAGE 1 REGISTER (B1TV1) 8H'23 DEFINITIONS
Bit
Access
Name
Description
7:5
—
—
Reserved
4:0
R/W
B1OV
Output Voltage
Data Code
(V)
Data Code
(V)
5h'01
0.80
5h'0D
1.40
5h'02
0.85
5h'0E
1.45
5h'03
0.90
5h'0F
1.50
5h'04
0.95
5h'11
1.60
5h'05
1.00
5h'12
1.65
5h'06
1.05
5h'13
1.70
5h'07
1.10
5h'14
1.80
5h'08
1.15
5h'15
1.90
5h'09
1.20
5h'16
2.50
5h'0A
1.25
5h'17
2.80
5h'0B
1.30
5h'18
3.00
5h'0C
1.35
5h'19
3.30
BUCK1 TARGET VOLTAGE 2 REGISTER (B1TV2) 8H'24
Bit
7
6
5
4
3
2
1
0
Designation
Reserved
Buck 1 Output Voltage (B1OV)**
Reset Value
0
0
0
0**
1**
1**
0**
1**
28
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Copyright © 2006–2013, Texas Instruments Incorporated
Product Folder Links: LP3971



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