STEP-DOWN DC/DC CONVERTERS

ACT8796

Rev1, 10-Oct-08

Innovative Power

TM

- 13 -

www.active-semi.com

Copyright © 2008 Active-Semi, Inc.

ActivePMU

I

REGISTER DESCRIPTIONS

ADDRESS

DATA

D7

D6

D5

D4

D3

D2

D1

D0

10h

R

VRANGE

VSET

11h

MODE

12h

R

13h

R

W/E

OK

ON

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

ADDRESS

NAME

BIT

ACCESS

FUNCTION

DESCRIPTION

10h

VSET

[5:0]

R/W

REG1 Output Voltage Selection

See Table 4

10h

VRANGE

[6]

R/W

REG1 Voltage Range

Selection

0

1

10h

[7]

R

READ ONLY

11h

MODE

[0]

R/W

Mode Selection

0

PWM/PFM

1

Forced PWM

11h

[7:1]

R

READ ONLY

12h

[7:0]

R

READ ONLY

13h

ON

[0]

R/W

REG1 Enable

0

REG1 Disable

1

REG1 Enable

13h

OK

[1]

R

REG1 Power-OK

0

Output is not OK

1

Output is OK

13h

[2]

W/E

WRITE-EXACT

13h

[7:3]

R

READ ONLY

Note: See Table 1 for default register settings.

Table 2:

REG1 Control Register Map

Table 3:

REG1 Control Register Bit Descriptions

R: Read-Only bits. Default Values May Vary.

W/E: Write-Exact bits. Read/Write bits which must be written exactly as specified in Table 1