NB679, 28V VIN, FIXED 5V-8A BUCK CONVERTER WITH LDO

NB679 Rev. 1.03

www.MonolithicPower.com

17

7/27/2017

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

© 2017 MPS. All Rights Reserved.

TYPICAL APPLICATION

EN

VOUT

BST

LDO

VIN

PG

SW

GND

VIN

GND

ENLDO

NB679

PGND

VOUT

5 V/8 A

VCC

22 μF

220 nF

1 μF

100 kΩ

1.5 μH

88 μF

4.7 μF

AGND

3.3 Ω

5.5 V-24 V

EN

5 V/ 100

mA

ENLDO

Figure 7

— Typical application schematic with ceramic output capacitors

EN

VOUT

BST

LDO

VIN

PG

SW

GND

VIN

GND

ENLDO

NB679

PGND

VOUT

5 V/8 A

VCC

22 μF

220 nF

1 μF

100 kΩ

1.5 μH

150 μF

4.7 μF

AGND

3.3 Ω

5.5 V-24 V

EN

5V/100

mA

ENLDO

Figure 8

— Typical application schematic with POSCAP output capacitors—recommended for large duty

operation only.