SC4518H Просмотр технического описания (PDF) - Semtech Corporation
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производитель
SC4518H Datasheet PDF : 15 Pages
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POWER MANAGEMENT
Block Diagram
SC4518H
+
Is
+
SLOPE
+
ISEN
IN
40m
COMP
FB
EN
SYNC
-
EA
+
PWM
SQ
R
BST
POWER
TRANSISTOR
1V
REFERENCE UVLO
OSCILLATOR
0.7V
SLOPE
SLOPE COMP
FREQUENCY
CLK
Is
SOFT START
OL
HICCUP
FB
SW
GND
Typical Characteristic - OCP Limit
4.5
4
3.5
3
2.5
2
1.5
1
0.5
0
SC4518H OCP Limit vs Duty Cycle
ILIM @ -40C
ILIM @ 25C
ILIM @ 125C
20
40
60
80
100
Duty Cycle (%)
2007 Semtech Corp.
6
www.semtech.com
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