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SC1409 датащи(PDF) 3 Page - Semtech Corporation

номер детали SC1409
подробное описание детали  1 A Synchronous Switching Regulator
PDF  8 Pages
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производитель  SEMTECH [Semtech Corporation]
домашняя страница  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC1409 датащи(HTML) 3 Page - Semtech Corporation

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SC1409
© 2000 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
1 A Synchronous Switching Regulator
June 28, 2000
3
OC_DET
PHASE
ISET
VIN
60nS DELAY
EN/SS
PGND
R
S
Q
R
S
Q
R
S
Q
R
S
Q
+
-
+
-
+
-
FB
OSCILLATOR
UV LOCKOUT
+
-
+
-
SYNC/FSET
AGND
1:800
SHOOT THRU
CONTROL
4.5V
1.5V
I
2I
THERMAL
SHUTDOWN
VREF
SOFT
START
ERROR
AMP
BLOCK DIAGRAM
PIN CONFIGURATION
SYNC/FSET
1
EN/SS
AGND
FB
ISET
PHASE
PGND
VIN
2
3
4
8
7
6
5
Top View
(8 LEAD SOIC)
PIN DESCRIPTION
Pin #
Pin Name
Pin Function
1
SYNC/FSET
Sets frequency, allows synchronization.
FSET = V
IN, f = 500kHz
FSET = GND, f = 300kHz
2
EN/SS
Enable and Soft Start pin.
3
AGND
Analog ground.
4
FB
Output voltage feedback.
5
PGND
Device power ground.
6
PHASE
Power output to the inductor.
7
VIN
Input voltage.
8
ISET
Current limit programming input.



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