FAN5354 Datasheet, PDF (7/14 Pages) Fairchild Semiconductor – 3MHz, 3A Synchronous Buck Regulator

Typical Characteristics
Unless otherwise specified, VIN=5V, VOUT=1.2V, circuit of Figure 1, and components per Table 1.
31.0
30.0
29.0
28.0
TJ = 85°C
TJ = 25°C
TJ = –40°C
27.0
26.0
25.0
24.0
2.5
3
3.5
4
4.5
5
5.5
6
Input Voltage (V)
Figure 15. PFM frequency, ILOAD = 0
Load Transient Response (Figure 16 – Figure 19). ILOAD tR = tF = 100ns
Figure 16. MODE=0, 100mA to 1.5A to 100mA, 5µs/div.
Figure 17. 500mA to 3A to 500mA, 5µs/div.
VOUT
I_L
I _{lo a d}
Figure 18. MODE=1, 100mA to 1.5A to 100mA, 5µs/div. Figure 19. 24mA to 500mA to 24mA, MODE=0, 5µs/div.
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FAN5354 • Rev. 1.0.4
7
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