FAN5354 データシートの表示（PDF） - ON Semiconductor

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FAN5354

3 MHz, 3 A Synchronous Buck Regulator

ON Semiconductor 

Typical Characteristics

Unless otherwise specified, VIN=5 V, VOUT=1.2 V, circuit of Figure 1, and components per Table 1.

Load Transient Response (Figure 13 – Figure 16). ILOAD tR = tF = 100 ns

Figure 13. MODE=0, 100 mA to 1.5 A to 100 mA, 5 µs/div.

Figure 14. 500 mA to 3 A to 500 mA, 5 µs/div.

VOUT

IL

Iload

Figure 15. MODE=1, 100 mA to 1.5 A to 100 mA, 5 µs/div. Figure 16. 24 mA to 500 mA to 24 mA, MODE=0, 5 µs/div.

VEN

VOUT

VPG

Isupply

Figure 17. Soft-Start, EN Voltage Raised After VIN=5 V,

ILOAD=0, 100 s/div.

© 2009 Fairchild Semiconductor Corporation

FAN5354 • Rev. 1.0.7

7

VIN=VEN

VOUT

VPG

Isupply

Figure 18. Soft-Start, EN Pin Tied to VCC

ILOAD=0, 1 ms/div.

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