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dc1743af

DEMO MANUAL DC1743A

Information furnished by Linear Technology Corporation is believed to be accurate and reliable.  

However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa-

tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.

5

5

4

4

3

3

2

2

1

1

D

D

C

C

B

B

A

A



F

SET

5V

VO

U

T

VO

U

T

5V

5V

5V

5V

V

IN

V

IN

V

IN

5V

R

E

VI

S

ION 

HI

S

T

OR

Y

DES

C

R

IP

TI

ON

DA

TE

A

P

P

R

OVED

E

CO

RE

V









R

E

VI

S

ION 

HI

S

T

OR

Y

DES

C

R

IP

TI

ON

DA

TE

A

P

P

R

OVED

E

CO

RE

V









R

E

VI

S

ION 

HI

S

T

OR

Y

DES

C

R

IP

TI

ON

DA

TE

A

P

P

R

OVED

E

CO

RE

V























AP

P

R

O

V

AL

S





T

E

CHNO

L

O

G

Y



 







       









w

w

w

.li

near

.c

om

































AP

P

R

O

V

AL

S





T

E

CHNO

L

O

G

Y



 







       









w

w

w

.li

near

.c

om

































AP

P

R

O

V

AL

S





T

E

CHNO

L

O

G

Y



 







       





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

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



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E:

 U

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ESS 

O

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H

ER

W

ISE 

SPEC

IF

IED

.

1

. A

L

L

 R

E

S

IS

T

O

R

S

AL

L

 C

APAC

IT

O

R

S

2

IN

ST

AL

L

 SH

U

N

T

AS 

SH

O

W

N

.





N

O

T

E:

 U

N

L

ESS 

O

T

H

ER

W

ISE 

SPEC

IF

IED

.

1

. A

L

L

 R

E

S

IS

T

O

R

S

AL

L

 C

APAC

IT

O

R

S

2

IN

ST

AL

L

 SH

U

N

T

AS 

SH

O

W

N

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

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ESS 

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T

H

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W

ISE 

SPEC

IF

IED

.

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. A

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L

 R

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S

IS

T

O

R

S

AL

L

 C

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S

2

IN

ST

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L

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U

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T

AS 

SH

O

W

N

.





E4

PG

OO

D

E4

PG

OO

D

J1

V

IN

5V

 -

 36V

J1

V

IN

5V

 -

 36V

J5

VO

U

T

3

.3

V

 / 5

V

 / 1

2

V

@

 8

A

J5

VO

U

T

3

.3

V

 / 5

V

 / 1

2

V

@

 8

A

R4

392K 1%

R4

392K 1%

CI

N5

(O

PT

)

1210

CI

N5

(O

PT

)

1210

C1

0

10uF

C1

0

10uF

CI

N3

10uF 50V

1210

CI

N3

10uF 50V

1210

R1

10K

R1

10K

CO

UT

6

47uF

16V

1210

CO

UT

6

47uF

16V

1210

CO

UT

2

47uF

16V

CO

UT

2

47uF

16V

C2

(O

PT

)

C2

(O

PT

)

JP

7

12V

JP

7

12V

J3

IOST

EP

J3

IOST

EP

+

CI

N1

100uF

50V

+

CI

N1

100uF

50V

E1

1

C

O

MP

E1

1

C

O

MP

CI

N2

10uF 50V

1210

CI

N2

10uF 50V

1210

CS

S

0.

1uF

CS

S

0.

1uF

R1

1

(O

PT

)

R1

1

(O

PT

)

E1

2

SG

N

D

E1

2

SG

N

D

JP

3

DCM

CCM

MO

D

E

JP

3

DCM

CCM

MO

D

E

1

3

2

R1

7

5.

23K

1%

R1

7

5.

23K

1%

R1

0

(O

PT

)

R1

0

(O

PT

)

C7

(O

PT

)

C7

(O

PT

)

R1

6

13.

7K

1%

R1

6

13.

7K

1%

R1

4

22.

1K

1%

R1

4

22.

1K

1%

CO

UT

1

47uF

16V

CO

UT

1

47uF

16V

CP

(O

PT

)

CP

(O

PT

)

E6

VO

+

E6

VO

+

R1

3

(O

PT

)

R1

3

(O

PT

)

E2

V

IN

-

E2

V

IN

-

D1 5.

1V

D1 5.

1V

CO

UT

4

10uF

16V

1210

CO

UT

4

10uF

16V

1210

CI

N4

(O

PT

)

1210

CI

N4

(O

PT

)

1210

R2

51K

R2

51K

U1

LT

M

4613E

V

U1

LT

M

4613E

V

S

G

ND

H

1

2

DRV

CC

E

11

F

SET

B

12

C

O

MP

A

11

VF

B

F

1

2

P

GOOD

G

12

RUN

A

10

T

R

AC

K/

SS

A9

P

LLI

N

A8

INT

V

CC

A7

MP

G

M

A

12

MA

R

G

0

C

1

2

MA

R

G

1

D

1

2

VIN

A1

VIN

A2

VIN

A3

VIN

A4

VIN

A5

VD

A6

VIN

B1

VIN

B2

VIN

B3

VIN

B4

VIN

B5

VD

B6

VD

C1

VD

C2

VD

C3

VD

C4

VD

C5

VD

C6

VOU

T

J1

VOU

T

J2

VOU

T

J3

VOU

T

J4

VOU

T

J5

VOU

T

J6

VOU

T

J7

VOU

T

J8

VOU

T

J9

VOU

T

J1

0

VOU

T

K1

VOU

T

K2

VOU

T

K3

VOU

T

K4

VOU

T

K5

VOU

T

K6

VOU

T

K7

VOU

T

K8

VOU

T

K9

VOU

T

K10

VOU

T

K11

V

O

UT

L

1

V

O

UT

L

2

V

O

UT

L

3

V

O

UT

L

4

V

O

UT

L

5

V

O

UT

L

6

V

O

UT

L

7

V

O

UT

L

8

V

O

UT

L

9

V

O

UT

L

1

0

V

O

UT

L

1

1

V

O

UT

M1

V

O

UT

M2

V

O

UT

M3

V

O

UT

M4

V

O

UT

M5

V

O

UT

M6

V

O

UT

M7

V

O

UT

M8

V

O

UT

M9

V

O

UT

M

1

0

V

O

UT

M

1

1

PGN

D

D1

PGN

D

D2

PGN

D

D3

PGN

D

D4

PGN

D

D5

PGN

D

D6

PGN

D

E1

PGN

D

E2

PGN

D

E3

PGN

D

E4

PGN

D

E5

PGN

D

E6

PGN

D

E7

PGN

D

F1

PGN

D

F2

PGN

D

F3

PGN

D

F4

PGN

D

F5

PGN

D

F6

PGN

D

F7

PGN

D

F8

PGN

D

F9

PGN

D

G1

PGN

D

G2

PGN

D

G3

PGN

D

G4

PGN

D

G5

PGN

D

G6

PGN

D

G7

PGN

D

G8

PGN

D

G9

PGN

D

H1

PGN

D

H2

PGN

D

H3

PGN

D

H4

PGN

D

H5

PGN

D

H6

PGN

D

H7

PGN

D

H8

PGN

D

H9

S

G

ND

D9

MP

G

M

B

11

MA

R

G

1

C

1

1

DRV

CC

E

12

C

O

MP

D

1

1

MT

P

1

J

1

2

MT

P

2

K

12

MT

P

3

L

1

2

VD

B7

VD

C7

RUN

B9

DRV

CC

C

1

0

F

CB

M

1

2

PGN

D

E8

PGN

D

G10

PGN

D

G11

PGN

D

H1

0

PGN

D

H1

1

VOU

T

J1

1

R6

(O

PT

)

R6

(O

PT

)

R5

O

hm

R5

O

hm

C3

(O

PT

)

C3

(O

PT

)

Q

1

S

U

D

50N

03-

09

Q

1

S

U

D

50N

03-

09

C1

1uF

16V

C1

1uF

16V

C6

(O

PT

)

C6

(O

PT

)

J7

V

IN

J7

V

IN

E1

V

IN

+

E1

V

IN

+

CO

UT

3

(O

PT

)

1210

CO

UT

3

(O

PT

)

1210

JP

5

3.

3V

JP

5

3.

3V

R9

O

hm

R9

O

hm

E9

G

ND

E9

G

ND

C8 10uF 50V 1210

C8 10uF 50V 1210

JP

2

I

LO

M

AR

G1

JP

2

I

LO

M

AR

G1

1

3

2

R8

(O

PT

)

R8

(O

PT

)

CO

UT

5

1uF

16V

CO

UT

5

1uF

16V

JP

6

5V

JP

6

5V

CI

N6

(O

PT

)

0805

CI

N6

(O

PT

)

0805

R1

5

10K

R1

5

10K

E7

VO

-

E7

VO

-

CF

F

47pF

CF

F

47pF

J2

G

ND

J2

G

ND

J4

VO

U

T

J4

VO

U

T

E8

P

LLI

N

E8

P

LLI

N

E3

IOST

EP_

C

L

K

E3

IOST

EP_

C

L

K

JP

1

I

LO

M

AR

G0

JP

1

I

LO

M

AR

G0

1

3

2

R3

0.

020

5%

1W

2512

R3

0.

020

5%

1W

2512

R7

(O

PT

)

R7

(O

PT

)

+

CO

UT

7

47uF 16V 7343

+

CO

UT

7

47uF 16V 7343

JP

4

O

N

O

FF

RUN

JP

4

O

N

O

FF

RUN

1

3

2

E1

0

T

R

AC

K/

SS

E1

0

T

R

AC

K/

SS

C9

10uF

C9

10uF

R1

2

51K

R1

2

51K

J6

G

ND

J6

G

ND

scheMAtic DiAgrAM

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Summary of Contents for DC1743A

Page 1: ...ions Higherefficiencyatlowloadcurrentsisachievedbysetting the MODE pin jumper to DCM The PLL pin is available to synchronize the LTM4613EV to an external clock The LTM4613 data sheet must be read in conjunction with this demo manual prior to working on or modifying demo circuit DC1743A Design files for this circuit board are available at http www linear com demo TA 25 C PARAMETER CONDITIONS VALUE ...

Page 2: ...aximum voltage of 36V to the board or the part may be damaged The output voltage should be regulated and deliver the selected output voltage 2 4 Vary the input voltage from 5V to 36V and adjust the load current from 0A to 8A Observe the output voltage regulation ripple voltage efficiency and other param eters 5 To measure input or output ripple insert the scope probe to J7 or J4 6 Foroptionalloadt...

Page 3: ... dc1743af DEMO MANUAL DC1743A Figure 1 Proper Measurement Equipment Setup quick start procedure VIN A LOAD V A V DC1743A F01 Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com ...

Page 4: ...RRENT A 0 EFFICIENCY 80 85 95 90 100 4 6 DC1743A F03a 75 70 60 65 2 8 55 50 VOUT 3 3V VOUT 5V DC1743A F02 SCOPE PROBE LOAD CURRENT A 0 EFFICIENCY 80 85 95 90 100 4 6 DC1743A F03b 75 70 60 65 2 8 55 50 VOUT 3 3V VOUT 5V VOUT 12V quick start procedure LOAD CURRENT A 0 EFFICIENCY 80 85 100 90 95 4 6 DC1743A F03c 75 70 60 65 2 8 55 50 VOUT 3 3V VOUT 5V VOUT 12V Downloaded from Arrow com Downloaded fro...

Page 5: ...VIN 12V VOUT 5V 0A TO 4A LOAD STEP COUT 1x47µF 16V POSCAP 3x47µF 16V X5R 1x10µF 16V X5R 100µs DIV IOUT_STEP 5A DIV VOUT 100mV DIV DC1743A F04a VIN 24V VOUT 12V 0A TO 4A LOAD STEP COUT 1x47µF 16V POSCAP 3x47µF 16V X5R 1x10µF 16V X5R IOUT_STEP 5A DIV VOUT 200mV DIV DC1743A F04b 100µs DIV Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloade...

Page 6: ...IP 392k 0 06W 1 0603 VISHAY CRCW0603392KFKEA 15 1 D1 ZENER DIODE 5 1V SOT23 ON SEMICONDUCTOR MMBZ5231B 16 1 U1 I C VOLTAGE REG LINEAR TECHNOLOGY CORPORATION LTM4613EV Additional Demo Board Circuit Components 1 1 Q1 MOSFET N CHANNEL 30V VISHAY SILICONIX SUD50N03 09 2 1 C1 CAP X7R 1µF 16V 10 0603 TDK C1608X7R1C105K 3 0 COUT3 CIN4 CIN5 OPT CAP 1210 4 0 CIN6 OPT CAP 0805 5 0 C2 C3 C6 C7 CP OPT CAP 060...

Page 7: ... B12 COMP A11 VFB F12 PGOOD G12 RUN A10 TRACK SS A9 PLLIN A8 INTVCC A7 MPGM A12 MARG0 C12 MARG1 D12 VIN A1 VIN A2 VIN A3 VIN A4 VIN A5 VD A6 VIN B1 VIN B2 VIN B3 VIN B4 VIN B5 VD B6 VD C1 VD C2 VD C3 VD C4 VD C5 VD C6 VOUT J1 VOUT J2 VOUT J3 VOUT J4 VOUT J5 VOUT J6 VOUT J7 VOUT J8 VOUT J9 VOUT J10 VOUT K1 VOUT K2 VOUT K3 VOUT K4 VOUT K5 VOUT K6 VOUT K7 VOUT K8 VOUT K9 VOUT K10 VOUT K11 VOUT L1 VOU...

Page 8: ... INDEMNITY NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR ANY INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES The user assumes all responsibility and liability for proper and safe handling of the goods Further the user releases LTC from all claims arising from the handling or use of the goods Due to the open construction of the product it is the user s responsibility to take any and all appro...

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