ADP3020 データシートの表示（PDF） - Analog Devices

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ADP3020

High-Efficiency Notebook Computer Power Supply Controller

Analog Devices 

ADP3020

INPUT

5V

AUXVCC

32

SD 33

INTVCC

31

VIN

30

ADP3020

–

+ 4.7V

+5V

LINEAR REG

72mV

–+

14mV

–+

1.2V

REF

8

AGND

9

1.2V

REF

ULVO

PFO 20

PFI 19

–

1.20V +

MODE 11

SYNC 12

PWRGD 21

200kHz/

300kHz/

400kHz

OSC

POWER– FB5

ON

RESET

3.3V

CPOR

22

2.5V

DRV2

25

FB2

24

1.2V +

–

4␮A

SD2 23

+

1.2V –

CONTROL

LOGIC

INTVCC

–3mV

1.22V

+2%

1.2V

0%

–2% 1.18V

EA 1.2V

SHUTDOWN

S

Q

R

1.44V

+20%

0.96V

–20%

OC

2.5V

0.7␮A

4␮A

ON5

1.2V

CS5

1

CLSET5

7

BST5

38

DRVH5

37

SW5

36

DRVL5

35

PGND

34

FB5

2

EAN5

3

EAO5

4

5 ADJ/FX5

SS5

6

VOUT5

5V

DUPLICATE FOR SECOND CONTROLLER

Figure 1. Block Diagram (All Switches and Components Are Shown for Fixed Output Operation)

–6–

REV. 0

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