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THE INFORMATION CONTAINED HEREIN IS CONSIDERED " PROPRIETARY " TO BEL FUSE INC. AND SHALL NOT BE COPIED, REPRODUCED OR DISCLOSED WITHOUT THE WRITTEN APPROVAL OF BEL FUSE INC

3.3V_Phase VIN L3 R1 R2 Q21 6T 1T C25 D10 R32 R33 R34 C24 R37 R36 R35 D11 Q5 R38

L1 C26 CS_3.3V C1 C2 C3 C4 C5 +1.2Vout +13V R39 5

+3.3V_Pre Q6 C28 D12 R41 4 V_seq 2 R42 +3.3Vout

1 C33 R40 3 Vref_0.6 U3 LM321 C8 C6 C7

LOCK

Z5

VIO D1 C151 C15 MG

R14 Q1 C14

R5 Z1 C18 Q22 R4

R9 R10 CS R11 R12 R13 C19 Q3 Q4 R15 4V C30 R29 VCOM R27 R28 U2 Q10 R18 C23 4T C29 C31 Driver_en 2 3 6 7 U1 BST HD PWM PH VCC LD EN GND 1 8 5 4 Q8 Q9 L2 R31 C27 CS_1.2V C9 R30 C32 6.8V Q7

+1.2Vout

5V R3 C17

Q23 R130

VDD

R7 R8

VIO

L4

D2

C10

C11

C12

C13

C21 C16 1 3 R6 2 Z4 U9 AZ431 C20 D3 R16 AG R17 Q2

3.3V_Phase C34 +13V Q13 6.8V

D8

D9

D6

D7 C37 4V

R25

Z3 C38

C39

VDD SHDN 5 R19 INA+ INAGND INB+ INBSS VDD GATE D5 8 1 R20 D4 7 2

C22 R24 R23 U4

Q12

SCH2-0RXW-75TD1x-V1.1 SCH2-0RXW-75TD1x-V1.1.SCH Z2 C36

OUTA

6

C35 AG

VIN

VIN PGND

+3.3Vout +1.2Vout SGND CS_3.3V

+3.3Vout +1.2Vout

OUTB

4

5V MG 5V GATE

5V

CS_3.3V CS_1.2V 4V VCOM +3.3V_Pre V_seq 6.8V

GATE SHDN SHDS

CS_1.2V 4V VCOM

C40

C41

3

R21 1 2 SHDS R22 Q11 2801 U5 4 3

SHDN SHDS Driver_en LOCK SS

LOCK +3.3V_Pre SS V_seq 6.8V

STANDARD DRWN DATE TITLE PART NO. / DRAWING NO.

DIM.

[

] METRIC DIM. AS REFERENCE N/A N/A REV : SIZE : PAGE : VP1 A3 1 OF 2

UNIT: .X .X X SCALE:

XP Chen

2007-9-04

CHKD

HL Lu

DATE

SCH-0RXW-75TD1x-V1.1
20079-04

bel
BEL FUSE INC.

FILE NAME

SCH-

.X X X

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