LP3971_16 Datasheet, PDF (30/52 Pages) Texas Instruments – Power Management Unit for Advanced Application Processors

LP3971
SNVS432V – JANUARY 2006 – REVISED MAY 2013
BUCK 2 TARGET VOLTAGE 1 REGISTER (B2TV1) 8H'29 DEFINITIONS
Bit
Access
7:5
—
4:0
R/W
Name
—
B2OV
Reserved
Output Voltage
Data Code
5h'01
5h'02
5h'03
5h'04
5h'05
5h'06
5h'07
5h'08
5h'09
5h'0A
5h'0B
5h'0C
Description
(V)
Data Code
0.80
5h'0D
0.85
5h'0E
0.90
5h'0F
0.95
5h'11
1.00
5h'12
1.05
5h'13
1.10
5h'14
1.15
5h'15
1.20
5h'16
1.25
5h'17
1.30
5h'18
1.35
5h'19
BUCK 2 TARGET VOLTAGE 2 REGISTER (B2TV2) 8H'2A
Bit
7
6
5
4
Designation
Reserved
Reset Value
0
0
0
1**
3
2
1
Buck 2 Output Voltage (B2OV)**
1**
0**
0**
BUCK 2 TARGET VOLTAGE 2 REGISTER (B2TV2) 8H'2A DEFINITIONS
Bit
Access
7:5
—
4:0
R/W
Name
—
B2OV
Reserved
Output Voltage
Data Code
5h'01
5h'02
5h'03
5h'04
5h'05
5h'06
5h'07
5h'08
5h'09
5h'0A
5h'0B
5h'0C
Description
(V)
Data Code
0.80
5h'0D
0.85
5h'0E
0.90
5h'0F
0.95
5h'11
1.00
5h'12
1.05
5h'13
1.10
5h'14
1.15
5h'15
1.20
5h'16
1.25
5h'17
1.30
5h'18
1.35
5h'19
BUCK 2 VOLTAGE RAMP CONTROL REGISTER (B2RC) 8H'2B
Bit
7
6
5
4
3
Designation
Reserved
Reset Value
0
0
0
0
1
2
1
Ramp Rate
0
1
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(V)
1.40
1.45
1.50
1.60
1.65
1.70
1.80
1.90
2.50
2.80
3.00
3.30
0
0**
(V)
1.40
1.45
1.50
1.60
1.65
1.70
1.80
1.90
2.50
2.80
3.00
3.30
0
0
30
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