SC2603SKTRT datasheet(8/11 Pages) SEMTECH

Part #	SC2603SKTRT

Description	Simple PWM Boost Controller

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Manufacturer	SEMTECH [Semtech Corporation]

Direct Link	http://www.semtech.com

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SC2603

POWER MANAGEMENT

Applications Circuit

12V to 25V @ 1A boost converter

R2

34K

R4

1.78K

L1

18uH

Q1

AO4442

D1

3A, 40V

C2

330u/35V

C1

470u

R5

1K

VIN = 12V

VOUT=25V

U2

SC2603

VIN

5

EN/SS

3

FB

1

GND

2

CS

6

Gate

4

C11

1u

R1

2.2

C4

0.1u

Enable

C3

1u

R6

20m

C5

120p

(open drain)

R2

34K

R4

1.78K

L1

18uH

Q1

AO4442

D1

3A, 40V

C2

330u/35V

C1

470u

R5

1K

VIN = 12V

VOUT=25V

U2

SC2603

VIN

5

EN/SS

3

FB

1

GND

2

CS

6

Gate

4

C11

1u

R1

2.2

C4

0.1u

Enable

C3

1u

R6

20m

C5

120p

(open drain)

Bill of Material

Open Drain with < 100

pull down impedance

SEMTECH

SOT23-6

SC2603

U1

1

16

20m

R6

1

15

603

1K

R5

1

14

603

1.78K

R4

1

13

603

0

R3

1

12

603

34K

R2

1

11

603

2.2

R1

1

10

Alpha & Omega

AO4442

Q1

1

9

COOPER

18uH

L1

1

8

1N5819

D1

1

7

805

1u

C11

1

6

603

120p

C5

1

5

603

0.1u

C4

1

4

603

1uF

C3

1

3

SANYO

330u/Alum

C2

1

2

SANYO

470u/Alum

C1

1

Vendor

footprint

Part

Reference

Quantity

Item

SEMTECH

SOT23-6

SC2603

U1

1

16

20m

R6

1

15

603

1K

R5

1

14

603

1.78K

R4

1

13

603

0

R3

1

12

603

34K

R2

1

11

603

2.2

R1

1

10

Alpha & Omega

AO4442

Q1

1

9

COOPER

18uH

L1

1

8

1N5819

D1

1

7

805

1u

C11

1

6

603

120p

C5

1

5

603

0.1u

C4

1

4

603

1uF

C3

1

3

SANYO

330u/Alum

C2

1

2

SANYO

470u/Alum

C1

1

Vendor

footprint

Part

Reference

Quantity

Item

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SC2603SKTRT Datasheet(PDF) 8 Page - Semtech Corporation

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