SC4525A Semtech Corporation, SC4525A Datasheet - Page 18

• Manufacturer Part Number: SC4525A
• Description: 28V 3A Step-Down Switching Regulator
• Manufacturer: Semtech Corporation

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Typical Performance Characteristics
(For A 12V to 5V/3A Step-down Converter with 1MHz Switching Frequency)
SS270 REV 6-7
Figure 12(c). Load Transient Response
Figure 12(a). Load Characteristic
5V Output Response (500mV/DIV, AC Coupling)
6
5
4
3
2
1
0
0
0.5
Inductor Current (1A/DIV)
1
Load Characteristic
(I
Load Current (A)
1.5
O
= 0.3A to 3A)
40us/DIV
2
2.5
3
3.5
4
SS
4.5
OCP
Figure 12(d). Output Short Circuit (Hiccup)
Figure 12(b). V
12V Input (5V/DIV)
5V Output (2V/DIV)
SS Voltage (1V/DIV)
Retry Inductor Current (2A/DIV)
5V Output Short (5V/DIV)
IN
SS Voltage (2V/DIV)
Start up Transient (I
20ms/DIV
10ms/DIV
SC4525A
O
=3A)
8