LP3971SQ-B410EV National Semiconductor, LP3971SQ-B410EV Datasheet - Page 32

• Manufacturer Part Number: LP3971SQ-B410EV
• Description: BOARD EVALUATION LP3971SQ-B410
• Manufacturer: National Semiconductor
• Series: PowerWise®r

Specifications of LP3971SQ-B410EV

• Main Purpose: DC/DC, Step Down with LDO
• Outputs And Type: 9, Non-Isolated
• Voltage - Input: 2.7 ~ 5.5V
• Regulator Topology: Buck
• Board Type: Fully Populated
• Utilized Ic / Part: LP3971
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Current - Output: -
• Voltage - Output: -
• Power - Output: -
• Frequency - Switching: -
• Lead Free Status / Rohs Status: Not Compliant

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Designation
Reset Value
Designation
Reset Value
BUCK1 TARGET VOLTAGE 1 REGISTER (B1TV1) 8H'23
Note: ** denotes EPROM programmable registers for default value.
BUCK1 TARGET VOLTAGE 1 REGISTER (B1TV1) 8H'23 DEFINITIONS
BUCK1 TARGET VOLTAGE 2 REGISTER (B1TV2) 8H'24
Note: ** denotes EPROM programmable registers for default value.
BUCK1 TARGET VOLTAGE 2 REGISTER (B1TV2) 8H'24 DEFINITIONS
Bit
7:5
4:0
Bit
7:5
4:0
Access
Access
R/W
R/W
Bit
Bit
—
—
Name
B1OV
Name
B1OV
—
—
7
0
7
0
Reserved
Output Voltage
Reserved
Output Voltage
Reserved
Reserved
6
0
6
0
Data Code
Data Code
5h'0A
5h'0B
5h'0C
5h'0A
5h'0B
5h'0C
5h'01
5h'02
5h'03
5h'04
5h'05
5h'06
5h'07
5h'08
5h'09
5h'01
5h'02
5h'03
5h'04
5h'05
5h'06
5h'07
5h'08
5h'09
0**
5
5
0
0**
0**
4
4
32
0.80
0.85
0.90
0.95
1.00
1.05
1.10
1.15
1.20
1.25
1.30
1.35
0.80
0.85
0.90
0.95
1.00
1.05
1.10
1.15
1.20
1.25
1.30
1.35
(V)
(V)
1**
1**
Buck 1 Output Voltage (B1OV)**
Buck 1 Output Voltage (B1OV)**
3
3
Description
Description
Data Code
Data Code
1**
1**
2
2
5h'0D
5h'0D
5h'0E
5h'0F
5h'0E
5h'0F
5h'11
5h'12
5h'13
5h'14
5h'15
5h'16
5h'17
5h'18
5h'19
5h'11
5h'12
5h'13
5h'14
5h'15
5h'16
5h'17
5h'18
5h'19
0**
0**
1
1
1.40
1.45
1.50
1.60
1.65
1.70
1.80
1.90
2.50
2.80
3.00
3.30
1.40
1.45
1.50
1.60
1.65
1.70
1.80
1.90
2.50
2.80
3.00
3.30
(V)
(V)
1**
1**
0
0