MP8764 ― 12A, 18V, SYNCHRONOUS STEP-DOWN CONVERTER WITH LATCH-OFF OCP

MP8764 Rev. 1.2

www.MonolithicPower.com

22

6/21/2016

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DESIGN EXAMPLE

Table 4 lists the specifications for a design

example that follows the application guidelines:

Table 4—Design Example

12V

3V

500kHz

The detailed application schematic is shown in

Figure 15. The typical performance and circuit

waveforms have been shown in the Typical

Performance Characteristics section. For more

device applications, please refer to the related

Evaluation Board Datasheet.

TYPICAL APPLICATION

N S

C 7

C 1B

C 1C

220nF

C 6

C 5

N S

C 8

499k

R 5

100k

R 6

1M

R 7

N S

R 8

C 1A

V IN

1

V IN

1

G N D

1

EN

1

PG OO D

1

V C C

C 1D

C 3

100pF

C 4

4.7

R 3

1M

R 4

40.2k

R 1

10k

R 2

2k

R 9

1

2

L1

GN D

N S

C 2A

V out

SW

1

V O U T

1

G N D 1

C 2B

C 2C

C 2D

C 2E

FB

SW

GN D

SW

15

IN

V C C

7

FRE Q

2

FB

3

EN

1

PGOO D

6

BST

8

9,14

MP8764GLE

IN

U 1

MP8764G LE

Figure 15—Typical Application Circuit with Low ESR Ceramic Capacitor