LP3971 datasheet(26/42 Pages) NSC

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2C Register Definitions (Continued)

BUCK 1 VOLTAGE RAMP CONTROL REGISTER (B1RC) 8h’25

Bit

7654

3210

Designation

Reserved

Ramp Rate

Reset Value

0000

1010

BUCK 1 VOLTAGE RAMP CONTROL REGISTER (B1RC) 8h’25 DEFINITIONS

Bit

Access

Name

Description

7:5

...

Reserved

4:0

R/W

B1RS

DVM Ramp Speed

Data Code

Ramp Rate

(mV/µs)

4h’0

Instant

4h’1

4h’2

4h’3

4h’4

4h’5

4h’6

4h’7

4h’8

4h’9

4h’A

BUCK 2 TARGET VOLTAGE 1 REGISTER (B2TV1) 8h’29

Bit

43210

Designation

Reserved

Buck 2 Output Voltage (B2OV)

Reset Value

11000

BUCK 2 TARGET VOLTAGE 1 REGISTER (B2TV1) 8h’29 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

LP3971 Datasheet(PDF) 26 Page - National Semiconductor (TI)

LP3971 Datasheet(HTML) 26 Page - National Semiconductor (TI)

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