ADP3156 데이터 시트보기 (PDF) - Analog Devices

부품명

상세내역

일치하는 목록

ADP3156

Dual Power Supply Controller for Desktop Systems

Analog Devices 

ADP3156

100k⍀

␮P

SYSTEM

IRL3103

VO2

+1.5V

4A

1000␮F

RTN

R4

5k⍀

R3

20k⍀

2k⍀

47pF

ADP3156-1.8

1 NC

PGND 16

2 NC

NC 15

3 AGND

DRIVE1 14

4 SD

DRIVE2 13

5 FB

6 VLDO

7 SENSE–

VCC 12

PWRGD 11

CMP 10

8 SENSE+

CT 9

CT

200pF

1nF

22⍀

22␮F 1␮F

ESR = 34m⍀

2700␮F ؋ 2

(10V)

1␮F

R1

110k⍀

R2

16k⍀

IRL3103

L1

3␮H

RSENSE

12.9m⍀

IRL3103

10BQ015

CCOMP

2nF

220⍀

220⍀

L2

1.7␮H

12V

5V

5V RTN

12V RTN

ESR = 60m⍀

470␮F ؋ 4

VO

1.8V

7A

RTN

Figure 2. ADP3156 Typical VRM8.4 AGP and GTL Chipset DC/DC Converter Circuit

VCC DRIVE1 DRIVE2 PGND AGND PWRGD SENSE+ SENSE–

DELAY

NONOVERLAP

SD

DRIVE

VREF +15%

2R

CROWBAR

IN OFF

CMPI

VREF +5% VREF –5%

S

Q

R

VT2

VT1

gm

VREF

R

REFERENCE

CT

CMPT

OFF-TIME VIN

CONTROL SENSE–

ADP3156

VLDO

FB

CMP

Figure 3. Functional Block Diagram

–4–

REV. 0

Share Link: