KA1H0680RFB-TU FAIRCHILD [Fairchild Semiconductor], KA1H0680RFB-TU Datasheet - Page 5

• Manufacturer Part Number: KA1H0680RFB-TU
• Description: Fairchild Power Switch(FPS)
• Manufacturer: FAIRCHILD [Fairchild Semiconductor]

Typical Performance Characteristics
(These characteristic graphs are normalized at Ta=25 C)
I
I
Istart
Fosc
Iop
OP
ST
1.15
1.05
0.95
0.85
1.2
1.1
0.9
0.8
1.15
1.05
0.95
0.85
1.5
1.3
1.1
0.9
0.7
0.5
Figure 3. Operating Supply Current
1.2
1.1
0.9
0.8
1
-25
1
-25
Figure 1. Operating Frequency
-25
Figure 5. Start up Current
0
Fig.1 Operating Frequency
Fig.3 Operating Current
0
Fig.5 Start up Current
0
Temperature [
25
25
Temperature [
Temperature [
25
50
50
50
75
75
75
C
100 125 150
]
C
100 125 150
C
100 125 150
]
]
I
V
Ifb
Vstart
over
Ipeak
th(H)
1.15
1.05
0.95
0.85
1.2
1.1
0.9
0.8
1.05
0.95
0.85
1.1
0.9
0.8
1
1.15
1.05
0.95
0.85
-25
1.1
0.9
KA1M0680B/KA1M0680RB/KA1H0680B/KA1H0680RFB
1
Figure 2. Feedback Source Current
-25
1
Figure 6. Start Threshold Voltage
-25
Fig.2 Feedback Source Current
Figure 4. Peak Current Limit
Fig.6 Start Threshold Voltage
0
Fig.4 Max Inductor Current
0
0
25
Temperature [
25
Temperature [
25
Temperature [
50
50
50
75
75
75
C
100
100 125 150
]
C
100 125 150
]
C
]
125 150
5