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SC1470ITSTRT Datasheet(PDF) 6 Page - Semtech Corporation

Part # SC1470ITSTRT
Description  Synchronous Buck Pseudo Fixed Frequency Power Supply Controller
PDF  25 Pages
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Manufacturer  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC1470ITSTRT Datasheet(HTML) 6 Page - Semtech Corporation

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 2005 Semtech Corp.
www.semtech.com
SC1470
POWER MANAGEMENT
Block Diagram
Figure 1 - SC1470 Block Diagram
tplhDL
tplhDH
LX
DL
DL
DH
Shoot-Through Delay Timing Diagram
+
-
CONTROL
POR / SS
LOGIC
OT
TON
TOFF
ON
OFF
1.5V REF
PWM
ZERO I
OC
X3
ISENSE
MONITOR
FAULT
OV
UV
REF + 10%
REF - 10%
REF - 30%
VCCA (4)
BST (14)
DH (13)
LX (12)
ILIM (11)
VDDP (10)
DL (9)
PGND (8)
VSSA (7)
PGD (6)
FB (5)
VOUT (3)
TON (2)
EN/SPV (1)
HI
LO



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