SC4521 View Datasheet(PDF) - Semtech Corporation
Part Name
Description
MFG CO.
'SC4521' PDF : 18 Pages View PDF
POWER MANAGEMENT
Block Diagram
SC4521
+
Is
+
SLOPE
+
ISEN
IN
40m
COMP
FB
-
EA
+
PW M
SQ
R
EN
REFERENCE UVLO
1.6V INTERNAL SUPPLY
SS
SLOPE
SLOPE COMP
OSCILLATOR
FREQUENCY
CLK
Is
HICCUP
FB
BST
POWER
TRANSISTOR
SW
OL
GND
Typical Characteristic - OCP Limit
SC4519H OCP Limit vs Duty Cycle
7
6.5
6
5.5
5
4.5
4
3.5
3
2.5
2
0
20
40
60
80
100
Duty Cycle (%)
2007 Semtech Corp.
5
ILIM @-40C
ILIM @25C
ILIM @125C
www.semtech.com
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