ACT8810 datasheet(25/54 Pages) ACTIVE-SEMI

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STEP-DOWN DC/DC CONVERTERS

ACT8810

Rev 9, 15-Nov-12

Innovative Power

- 25 -

www.active-semi.com

ActivePMU

TM and ActivePathTM are trademarks of Active-Semi.

2CTM is a trademark of NXP.

Table 9:

REG2/VSETx[ ] Output Voltage Setting

REG2/VSETx[3:0]

REG2/VSETx[5:4]

REG2/VRANGE[ ] = [0]

REG2/VRANGE[ ] = [1]

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

VRANGE bit allows selection of the two output voltage ranges available for REG1, REG2 and REG3 (VRANGE = 0 – VOUT range 0.8V

to 2.2V, VRANGE = 1 – VOUT range 1.3V to 4.4V). It is recommended that the user first establishes if the new VOUT voltage is within 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.

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