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SC1408 データシート(PDF) 4 Page - Semtech Corporation

部品番号 SC1408
部品情報  LOW VOLTAGE, BOOST DC-DC CONTROLLER
PDF  12 Pages
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メーカー  SEMTECH [Semtech Corporation]
ホームページ  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC1408 データシート(HTML) 4 Page - Semtech Corporation

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© 2000 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
LOW VOLTAGE, BOOST DC-DC
CONTROLLER
SC1408
August 22, 2000
4
BLOCK DIAGRAM
INTERNAL BIAS
TRIG
Q
TRIG
Q
R
S
Q
+
-
+
-
+
-
FB
50mV
+
-
ISENSE
0.1V
BST
2.5V
GATE
SHDN
AGND
REF
GND
1.20V
REFERENCE
LOW
VOLTAGE
OSCILLATOR
MIN OFF TIME
ONE SHOT
2.3uS
MAX ON TIME
ONE SHOT
16uS
BIAS
CURRENT
SENSE AMP
ERROR
COMP
MODE
DETECT
START
UP
COMP
Pin #
Pin Name
Pin Function
1
GATE
Gate drive output.
2
BST
Supply voltage.
3
FB
Voltage feedback.
4
SHDN
Logic high shuts down the converter.
5
REF
Reference output pin.
6
AGND
Small signal analog and digital ground.
7
GND
Power ground.
8
ISENSE
Current sense pin.
PIN DESCRIPTION
PIN CONFIGURATION
Top View
(SO-8/MSOP-8)



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