MP2338 – 28V, 3A, SYNCHRONOUS STEP-DOWN CONVERTER W/ INTERNAL MOSFETS

MP2338 Rev. 1.0

www.MonolithicPower.com

21

12/11/2020

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© 2020 MPS. All Rights Reserved.

TYPICAL APPLICATION CIRCUITS

C3

0.1μF

MP2338

VIN

C1A

10μF

VIN

EN

SS

C4

22nF

SW

BST

C2A

22μF

FB

R3

191kΩ

PG

GND

VOUT

L1

2.2μH

C1B

10μF

C2B

22μF

R2

51kΩ

R1

51kΩ

R6

10kΩ

C5

82pF

R4

49.9kΩ

C1C

0.1μF

R5

100kΩ

2

1

3

6

7

4

8

5

6.5V to 28V

1V/3A

Figure 5: VIN = 6.5V to 28V, VOUT = 1V, IOUT = 3A

C3

0.1μF

MP2338

VIN

C1A

10μF

VIN

EN

SS

C4

22nF

SW

BST

C2A

22μF

FB

R3

191kΩ

PG

GND

L1

3.3μH

C1B

10μF

C2B

22μF

R2

16.9kΩ

R1

51kΩ

R6

10kΩ

C5

470pF

R4

49.9kΩ

C1C

0.1μF

R5

100kΩ

2

1

3

6

7

4

8

5

6.5V to 28V

VOUT =

1.8V/3A

Figure 6: VIN = 6.5V to 28V, VOUT = 1.8V, IOUT = 3A

C3

0.1μF

MP2338

VIN

C1A

10μF

VIN

EN

SS

C4

22nF

SW

BST

C2A

22μF

FB

R3

191kΩ

PG

GND

VOUT

L1

4.7μH

C1B

10μF

C2B

22μF

R2

12.7kΩ

R1

51kΩ

R6

10kΩ

C5

470pF

R4

49.9kΩ

C1C

0.1μF

R5

100kΩ

2

1

3

6

7

4

8

5

6.5V to 28V

2.5V/3A

Figure 7: VIN = 6.5V to 28V, VOUT = 2.5V, IOUT = 3A