sc2441a Semtech Corporation, sc2441a Datasheet - Page 11

• Manufacturer Part Number: sc2441a
• Description: Sc2441a 1.8v To 20v Input 2-phase Synchronous Step-down Controllers With Step-up Converter
• Manufacturer: Semtech Corporation

SC2441A
POWER MANAGEMENT
Vcc
4.5V
V
SOFT-START
3.3V
Enable Hiccup
V
COMP
1.85V
V
1.25V
OUT
PWM
Figure 6a. SC2441A Start-up Timing Diagram
V
3.3V
SOFT-START-CAP
Enable
Hiccup
V
V
COMP
O
1.85V
V
1.25V
0.8V
O
70% X V
Setpoint
O
PWM
0.5V
Disable Hiccup
restart
Figure 6b. SC2441A Overload Hiccup Operation Timing Diagram
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2006 Semtech Corp.
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