MQFL-28VE-05S Datasheet, PDF (2/19 Pages) SynQor Worldwide Headquarters – HIGH RELIABILITY DC-DC CONVERTER

Technical Specification
BLOCK DIAGRAM
1
+Vin
2
INPUT
RETURN
BOOST
CONVERTER
SWITCHES
AND
CONTROL
REGULATION STAGE
CURRENT
SENSE
3
STABILITY
4
ENABLE 1
5
SYNC OUT
6
SYNC IN
CASE
GATE DRIVERS
UVLO
CURRENT
LIMIT
PRIMARY
CONTROL
CONTROL
POWER
MQFL-28VE-05S
Output: ^5.0V
Current: ^20A
ISOLATION STAGE
7
+Vout
8
OUTPUT
RETURN
GATE DRIVERS
MAGNETIC
DATA COUPLING
SECONDARY
CONTROL
BIAS POWER
TRANSFORMER
12
ENABLE 2
11
SHARE
10
+ SENSE
9
 SENSE
TYPICAL CONNECTION DIAGRAM
28 Vdc
+
-
External bulk capacitor
RSTABILITY
open
means
CSTABILITY ^on
1
+VIN
2
IN RTN
3
STABILITY
4
ENA 1
5
SYNC OUT
6
SYNC IN
MQFL
12
ENA 2
11
SHARE
10
+ SNS
9
- SNS
8
OUT RTN
7
+VOUT
open
means
on
+
Load
-
Product # MQFL-28VE-05S
Phone [phone]
www.synqor.com
Doc.# 005-0005208 Rev. 1
04/22/09
Page 2