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SC1485ITSTRT 数据表(PDF) 7 Page - Semtech Corporation

部件名 SC1485ITSTRT
功能描述  Dual Synchronous Buck Pseudo Fixed Frequency Power Supply Controller
PDF  27 Pages
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制造商  SEMTECH [Semtech Corporation]
网页  http://www.semtech.com
标志 SEMTECH - Semtech Corporation

SC1485ITSTRT 数据表(HTML) 7 Page - Semtech Corporation

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 2005 Semtech Corp.
www.semtech.com
SC1485
POWER MANAGEMENT
X3
OV
TON2 (9)
REF + 10%
TON1 (23)
MONITOR
PWM
PWM
+
-
+
-
TOFF
EN/SPV1 (22)
FB2 (12)
1.5V REF
VCCA1 (25)
TON
VSSA2 (14)
OFF
ISENSE
BST1 (7)
LOGIC
REF - 30%
UV
HI
VOUT2 (10)
OT
DH1 (6)
ILIM2 (18)
POR / SS
LX1 (5)
EN/SPV2 (8)
ON
LO
ISENSE
ILIM1 (4)
OFF
REF - 30%
OC
VDDP1 (3)
LO
PGD2 (13)
UV
ON
VDDP2 (17)
DL1 (2)
ZERO I
DH2 (20)
VCCA2 (11)
CONTROL
PGND1 (1)
CONTROL
PGND2 (15)
LOGIC
MONITOR
POR / SS
VSSA1 (28)
FAULT
REF + 10%
TOFF
LX2 (19)
OC
OT
OV
ZERO I
DL2 (16)
FAULT
1.5V REF
PGD1 (27)
TON
X3
FB1 (26)
REF - 10%
HI
REF - 10%
VOUT1 (24)
BST2 (21)
FIGURE 1.
Block Diagram



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