ACT8740 datasheet(29/40 Pages) ACTIVE-SEMI

29 / 40 page

LOW-NOISE, LOW-DROPOUT, LINEAR REGULATORS

ACT8740

Rev PrB, 25-Feb-08

Innovative Products. Active Solutions.

- 29 -

www.active-semi.com

ActivePMU

TM is a trademark of Active-Semi.

2CTM is a trademark of Philips Electronics.

Note: See Table 1 for default register settings.

Table 8:

CFG Control Register Map

ADDRESS

DATA

40h

ON3

VSET3

41h

ON4

VSET4

42h

ON5

VSET5

43h

OK5

OK4

OK3

DIS5

DIS4

DIS3

W/E

ADDRESS

NAME

BIT

ACCESS

FUNCTION

DESCRIPTION

40h

VSET3

[4:0]

R/W

REG3 Output Voltage

Selection

See Table 10

40h

ON3

[5]

R/W

REG3 Enable

REG3 Disable

REG3 Enable

40h

[7:6]

READ ONLY

41h

VSET4

[4:0]

R/W

REG4 Output Voltage

Selection

See Table 10

41h

ON4

[5]

R/W

REG4 Enable

REG4 Disable

REG4 Enable

41h

[7:6]

READ ONLY

42h

VSET5

[4:0]

R/W

REG5 Output Voltage

Selection

See Table 10

42h

ON5

[5]

R/W

REG5 Enable

REG5 Disable

REG5 Enable

42h

[7:6]

READ ONLY

43h

[0]

READ ONLY

43h

[1]

W/E

43h

DIS3

[2]

R/W

REG3 Discharge Enable

Discharge Disable

Discharge Enable

43h

DIS4

[3]

R/W

REG4 Discharge Enable

Discharge Disable

Discharge Enable

WRITE-EXACT

Table 9:

REG345 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.

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