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SC4502EVB Datasheet(PDF) 4 Page - Semtech Corporation

Part # SC4502EVB
Description  1.4Amp, 2MHz Step-Up Switching Regulator with Soft-Start
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Manufacturer  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC4502EVB Datasheet(HTML) 4 Page - Semtech Corporation

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4
 2005 Semtech Corp.
POWER MANAGEMENT
SC4502/SC4502H
www.semtech.com
Block Diagram
SHDN
COMP
ROSC
9
REG_GOOD
EA
-
FB
2
SS
10
REFERENCE
VOLTAGE
3
IN
8
1
CMP
-
+
SUPPLY
INTERNAL
SHUTDOWN
THERMAL
REG
1.1V
1.242V
+
4.6
µA
ENABL E
ENABL E
+
R
Q
S
PWM
CLK
-
+
+
CLK
+
-
ISEN
ILIM
+
-
I-LIMIT
Σ
GND
4
SW
6
OSCILLATOR
SLOPE COMP
1.5
µA
REG
RSENSE
GND
5
SW
7
Figure 2. SC4502/SC4502H Block Diagram.
Pin Descriptions
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