NB669, 24V, HIGH CURRENT SYNCHRONOUS BUCK CONVERTER WITH LDO

NB669 Rev. 1.01

www.MonolithicPower.com

17

7/23/2013

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VIN

EN

SW

PG

VOUT

GND

AGND

VOUT

AGND KELVIN

CONNECT TO PGND

5

4

6

7

8

1

2

13

14

12

11

9

CLK

10

3

15

16

LDO

DO NOT CONNECT

TO AGND HERE

Figure 9—Recommend Layout

Recommend Design Example

A typical application schematic is shown in

Figure 10 when large ESR caps are used, and

Figure 11 shows the schematic when low ESR

caps are applied. The typical performance and

circuit waveforms have been shown in the

Typical Performance Characteristics section. For

more possible applications of this device, please

refer to related Evaluation Board Datasheets.