APW8855 datasheet(25/43 Pages) ANPEC

部品番号	APW8855

部品情報	High Current, High Frequency 7 Outputs Voltage Regulator and Power Management IC for High Performance Tablet and Ultra Notebook Applications

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メーカー	ANPEC [Anpec Electronics Coropration]

ホームページ	http://www.anpec.com.tw

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25 / 43 page

Copyright

Rev. A.1 - Dec., 2015

APW8855

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25

14.3 VR2 Register Table

Addres s

0x03

Fie ld Na me

3V3 _ALW DAC [7:0]

Data B it

D7

D6

D5

D4

D3

D2

D1

D0

Bit Na me

3 V3_ ALW_ VSE L

Read/Write

R/W

Po wer O n De fa ult

0

1

0

1

0

1

Bit Name

Bit Definition

3V 3_ALW_VS EL

0 0h : shutdown

0 1h : V R2 &V3V3_ALW_LDO Vol tag e = 2 900mV.

0 2h : V R2 &V3V3_ALW_LDO Vol tag e = 2 920mV.

0 3h : V R2 &V3V3_ALW_LDO Vol tag e = 2 940mV.

…

1 5h : V R2 &V

3V3 _ALW_ LDO Vol tag e = 3 300mV (De fau lt)

….

3 8h : V R2 &V

3V3 _ALW_ LDO Vol tag e = 4 000mV.

Addres s

0x0 4

Fie ld Na me

3V 3_ALW CO NTROL [7:0]

Data B it

D7

D6

D5

D4

D3

D2

D1

D0

Bit Na me

3V3_ ALW _SLEW

3V 3_A LW_FSW _S EL

3 V3_A LW_

_ SEL

3V 3_A LW_

_ EN

Read/Write

R/W

Po wer O n De fa ult

Reserved

0

1

0

Bit Name

Bit Definition

3V 3_ALW__E N

0: V R2 o ff (De fau lt)

1: V R2 o n

3V 3_ALW__S EL

0: V R2 o n/off i s controlle d by CTL (Defaul t)

1: V R2 o n/off i s controlle d by 3V 3_ALW_EN State

3V 3_ALW_FSW_S EL

00 : FSW = 1.0MHz at PWM mod e.

01 : FSW = 0.6MHz at PWM mod e.

10 : FSW = 0.8MHz at PWM mod e. (Defau lt)

11 : FSW = 1.2MHz a t PWM mode.

3V 3_ALW_SL EW

00 : Transition sl ew ra te = 1 0mV/us. (Default)

01 : Transition sl ew ra te = 1 5mV/us.

10 : Transition sl ew ra te = 2 0mV/us.

11 : Tra nsitio n sle w rate = 25mV /u s

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