Rainbow-electronics MAX8514 Manuale Utente Scaricare il pdf (Pagina 31)

MAX8513/MAX8514

Wide-Input, High-Frequency, Triple-Output Supplies

with Voltage Monitor and Power-On Reset

______________________________________________________________________________________ 31

PVLIN

GND

COMP1

BST

FREQ

PGND

DRV2

FB2

DRV3P

FB3P

L1A

1µF

100mA, 30V

(CMOSH-3)

10µF

4.7nF

6.8kΩ

0.1µF

30V, 23A

N-CHANNEL

MOSFET

(IRLR2703)

340Ω

160Ω

10.7kΩ

10µF

OUT2

2.5V, 1.5A

OUT1

3.3V, 2A

FB1

POR

30V, 5.5A DUAL N-CHANNEL

(FDS6984S)

REF

PFO

SEQ

PFI

0.1µF

R10

68.1kΩ

R11

12.4kΩ

100kΩ

EN/SYNC

SUP2

C10

2.2µF

R15

10Ω

C12

33pF

FB1

100Ω

0.68µF

CSP

CSN

ILIM

OUT1

CSP

R17

665kΩ

R18

66.5kΩ

C13

0.1µF

COUPLED INDUCTOR

L1A = 1.8µH, 4.5A/0.01Ω

n2/n1 = 20:6

(COILTRONICS, CTX 03-16101)

R13

11.3kΩ

R12

1kΩ

OUT3P

12V, 50mA

R14

806Ω

L1B

1µF

40V, 200mA

PNP

(MMBT3906)

CMPD4448

47µF

13.3kΩ

8.06kΩ

C11

680pF

620Ω

CSN

R19

200Ω

R20

200Ω

C14

0.47µF

C20

1000pF

R25

5.1Ω

CSN CSP

C22

1000pF

PFO

POR

IC1

MAX8513

R26

1.5kΩ

Figure 5. MAX8513 Typical Applications Circuit

1 2 ... 26 27 28 29 30 31 32 33 34 35

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