MAX1717(2000) Ver la hoja de datos (PDF) - Maxim Integrated

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MAX1717
(Rev.:2000)

Dynamically Adjustable, Synchronous Step-Down Controller for Notebook CPUs

Maxim Integrated 

Dynamically Adjustable, Synchronous

Step-Down Controller for Notebook CPUs

VBATT

7V TO 24V

+5V

BIAS SUPPLY

C5

1µF

R1

20Ω

C6

1µF

C1

4 x 10µF, 25V

TO VCC

ON/OFF

CONTROL

R7

120k

100k

7

VCC

1

V+

2 SKP/SDN

15

VDD

22

BST

DH 24

3

TIME

21

D0

20 D1

19 D2

MAX1717 LX 23

14

DL

18 D3

17 D4

GND 13

D2

CMPSH-3

C7

0.1µF

Q1 L1

1µH

Q2 D1

HIGH/LOW

C4

1µF

8

TON

9 REF

6 CC

C3

470pF

16 A/B

FB

FBS

GNDS

4

5

11

+5V

R2

100k

12

ILIM VGATE

10

TO VCC

POWER-GOOD

INDICATOR

C2

6 x 470µF

KEMET T510

VOUT

A/B = LOW = 1.60V

A/B = HIGH = 1.35V

Q1 = IRF7811

Q2 = 2 x IRF7805

D1 = INTL RECT 10MQ040N

C1 = TAIYO YUDEN TMK432BJ106KM

C2 = KEMET T510X477M006

L1 = SUMIDA CEP125

Figure 1. Standard Application Circuit

12 ______________________________________________________________________________________

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