LP3971 Datasheet, PDF (31/57 Pages) National Semiconductor (TI) – POWER MANAGEMENT UNIT FOR ADVANCED APPLICATION PROCESSORS

LP3971
www.ti.com
Bit
Access
4:0
R/W
Name
B2OV
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
SNVS432U – JANUARY 2006 – REVISED OCTOBER 2008
Description
(V)
Data Code
(V)
0.80
5h'0D
1.40
0.85
5h'0E
1.45
0.90
5h'0F
1.50
0.95
5h'11
1.60
1.00
5h'12
1.65
1.05
5h'13
1.70
1.10
5h'14
1.80
1.15
5h'15
1.90
1.20
5h'16
2.50
1.25
5h'17
2.80
1.30
5h'18
3.00
1.35
5h'19
3.30
BUCK 2 TARGET VOLTAGE 2 REGISTER (B2TV2) 8H'2A
Bit
7
6
5
Designation
Reserved
Reset Value
0
0
0
4
3
2
1
0
Buck 2 Output Voltage (B2OV)**
1**
1**
0**
0**
0**
BUCK 2 TARGET VOLTAGE 2 REGISTER (B2TV2) 8H'2A DEFINITIONS
Bit
Access
Name
Description
7:5
—
—
Reserved
4:0
R/W
B2OV
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
BUCK 2 VOLTAGE RAMP CONTROL REGISTER (B2RC) 8H'2B
Bit
7
6
5
4
3
2
1
0
Designation
Reserved
Ramp Rate
Reset Value
0
0
0
0
1
0
1
0
BUCK 2 VOLTAGE RAMP CONTROL REGISTER (B2RC) 8H'2B DEFINITIONS
Bit
Access
7:5
—
Name
—
Reserved
Description
Copyright © 2006–2008, Texas Instruments Incorporated
Product Folder Links: LP3971
Submit Documentation Feedback
31