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NB679GD Datasheet(PDF) 11 Page - Monolithic Power Systems

Part # NB679GD
Description  28V, Low IQ, Fixed 5.1V, 8A, Synchronous Buck Converter with 100mA LDO and LP# VOUT Scaling
PDF  19 Pages
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Manufacturer  MPS [Monolithic Power Systems]
Direct Link  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

NB679GD Datasheet(HTML) 11 Page - Monolithic Power Systems

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NB679A
–28V VIN, FIXED 5.1V-8A BUCK CONVERTER WITH LDO AND LP# VOUT SCALING
NB679A Rev. 1.03
www.MonolithicPower.com
11
7/27/2017
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2017 MPS. All Rights Reserved.
FUNCTIONAL BLOCK DIAGRAM
NB679A
VIN
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
EN
LP#
VCC
Figure 1: Functional Block Diagram



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