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SC4525D

18

Typical Performance Characteristics

(For A 12V to 5V/3A Step-down Converter with 350kHz Switching Frequency)

Fig.12a: LC

Load Characteristic

0

1

2

3

4

5

6

0

0.5

1

1.5

2

2.5

3

3.5

4

Load Current (A)

SS270 REV 6-7

Figure 12(a). Load Characteristic

Fig.12b: SS

12V Input (5V/DIV)

5V Output (2V/DIV)

5ms/DIV

SS Voltage (1V/DIV)

Figure 12(b). V

Figure 12(c). Load Transient Response

(I

Figure 12(d). Output Short Circuit (Hiccup)

Fig.12c: TR

5V Output Response (1V/DIV, AC Coupling)

Inductor Current (1A/DIV)

40us/DIV

Fig.12d: OCP

5V Output Short (5V/DIV)

Retry Inductor Current (2A/DIV)

10ms/DIV

SS Voltage (2V/DIV)