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NB679GD Datasheet(PDF) 10 Page - Monolithic Power Systems

Part # NB679GD
Description  28V, Low Iq, High Current, Fixed 5V-8A Synchronous Buck Converter with 100 mA LDO
PDF  18 Pages
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Manufacturer  MPS [Monolithic Power Systems]
Direct Link  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

NB679GD Datasheet(HTML) 10 Page - Monolithic Power Systems

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NB679
— 28V VIN, FIXED 5V-8A BUCK CONVERTER WITH LDO
NB679 Rev. 1.03
www.MonolithicPower.com
10
7/27/2017
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2017 MPS. All Rights Reserved.
FUNCTIONAL BLOCK DIAGRAM
NB679
VIN
ENLDO
LDO
Control
Logic
On Time One
Shot
Fault
Logic
Soft Start
POR &
Reference
122% Vref
OVP
OC Limit
POK
Min off time
VOUT
90% Vref
LDO
Control
VOUT
VOUT
VIN
SW
BSTREG
VIN
BST
SW
PGND
PG
VCC
Output
Discharge
VIN
VOUT
DC Error
Correction
+
+
FB
REF
Vref
FB
EN
LDO Switching
Over
PG
AGND
UVP-2
50% Vref
UVP-1
75% Vref
Figure 1
—Functional block diagram of NB679



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