STEP-DOWN DC/DC CONVERTERS

ACT8810

Rev 9, 15-Nov-12

Innovative Power

TM

- 25 -

www.active-semi.com

Copyright © 2012 Active-Semi, Inc.

ActivePMU

I

REGISTER DESCRIPTIONS CONT’D

Table 9:

REG2/VSETx[ ] Output Voltage Setting

REG2/VSETx[3:0]

REG2/VSETx[5:4]

REG2/VRANGE[ ] = [0]

REG2/VRANGE[ ] = [1]

00

01

10

11

00

01

10

11

0000

Adjustable

1.025

1.425

1.825

Adjustable

2.050

2.850

3.650

0001

0.800

1.050

1.450

1.850

1.300

2.100

2.900

3.700

0010

0.800

1.075

1.480

1.875

1.350

2.150

2.950

3.750

0011

0.800

1.100

1.500

1.900

1.400

2.200

3.000

3.800

0100

0.800

1.125

1.525

1.925

1.450

2.250

3.050

3.850

0101

0.800

1.150

1.550

1.950

1.500

2.300

3.100

3.900

0110

0.800

1.175

1.575

1.975

1.550

2.350

3.150

3.950

0111

0.800

1.200

1.600

2.000

1.600

2.400

3.200

4.000

1000

0.825

1.225

1.625

2.025

1.650

2.450

3.250

4.050

1001

0.850

1.250

1.650

2.050

1.700

2.500

3.300

4.100

1010

0.875

1.275

1.675

2.075

1.750

2.550

3.350

4.150

1011

0.900

1.300

1.700

2.100

1.800

2.600

3.400

4.200

1100

0.925

1.325

1.725

2.125

1.850

2.650

3.450

4.250

1101

0.950

1.350

1.750

2.150

1.900

2.700

3.500

4.300

1110

0.975

1.375

1.775

2.175

1.950

2.750

3.550

4.350

1111

1.000

1.400

1.800

2.200

2.000

2.800

3.600

4.400

: Care must be taken when adjusting the VRANGE[ ] selection at address 23h bit-6 to avoid undesired output voltage selections. The

current selected voltage range (selected by VRANGE) prior to changing the value of the VRANGE bit.

: Refer to the Output Voltage Programming section for more information.