LP3907 datasheet(36/57 Pages) TI1

Part #	LP3907

Description	Dual High-Current Step-Down DC/DC and Dual Linear Regulator with I2C-Compatible Interface

PDF	57 Pages

Scroll/Zoom	100%

Manufacturer	TI1 [Texas Instruments]

Direct Link	http://www.ti.com

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36 / 57 page

LP3907

SNVS511N – JUNE 2007 – REVISED AUGUST 2011

www.ti.com

* If using Ext Ctrl, contact National Sales for support.

BUCK1 RAMP CONTROL REGISTER (B1RC) - 0x25

This register allows the user to program the rate of change between the target voltages of Buck1.

D6-4

D3-0

Name

- - - -

B1RS

Access

- - - -

R/W

Data

Reserved

Data Code

Ramp Rate mV/us

4h'0

Instant

4h'1

4h'2

4h'3

4h'4

4h'5

4h'6

4h'7

4h'8

4h'9

4h'A

4h'B - 4h'F

Reset

010

1000

BUCK2 TARGET VOLTAGE 1 REGISTER (B2TV1) – 0X29

This register allows the user to program the output target voltage of Buck2.

D7-5

D4-0

Name

—

BK2_VOUT1

Access

—

R/W

Data

Reserved

Buck2 Output Voltage (V)

5’h00

Ext Ctrl

5’h01

1.0

5’h02

1.1

5’h03

1.2

5’h04

1.3

5’h05

1.4

5’h06

1.5

5’h07

1.6

5’h08

1.7

5’h09

1.8

5’h0A

1.9

5’h0B

2.0

5’h0C

2.1

5’h0D

2.2

5’h0E

2.4

5’h0F

2.5

5’h10

2.6

5’h11

2.7

5’h12

2.8

5’h13

2.9

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