3S1265RF 查看數據表（PDF） - Fairchild Semiconductor

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3S1265RF

Fairchild Power Switch(FPS)

Fairchild Semiconductor 

Typical Performance Characteristics

(These characteristic graphs are normalized at Ta = 25°C)

KA3S1265R/KA3S1265RF/KA3S1265RD

Fig.1 Operating Frequency

1.2

1.15

1.1

1.05

Fosc 1

0.95

0.9

0.85

0.8

-25 0 25 50 75 100 125 150

Temperature [°C]

Figure 1. Operating Frequency

1.2

1.15

1.1

1.05

Iop 1

0.95

0.9

0.85

0.8

-25

Fig.3 Operating Current

0 25 50 75 100 125 150

Temperature [°C]

Figure 3. Operating Supply Current

1.5

1.3

IISs tTart1.1

0.9

0.7

0.5

-25

Fig.5 Start up Current

0 25 50 75 100 125 150

Temperature [°C]

Figure 5. Start up Current

Fig.2 Feedback Source Current

1.2

1.15

1.1

1.05

IIFfbB 1

0.95

0.9

0.85

0.8

-25 0 25 50 75 100 125 150

Temperature [°C]

Figure 2. Feedback Source Current

1.1

1.05

IoIpverak 1

0.95

0.9

0.85

0.8

-25

Fig.4 Max Inductor Current

0 25 50 75 100 125 150

Temperature [°C]

Figure 4. Peak Current Limit

Fig.6 Start Threshold Voltage

1.15

1.1

1.05

Vtsht(aHr)t 1

0.95

0.9

0.85

-25 0

25 50 75 100 125 150

Temperature [°C]

Figure 6. Start Threshold Voltage

5

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