FAN21SV06_12 Datasheet, PDF (9/17 Pages) Fairchild Semiconductor – TinyBuck™ 6 A, 24V Single-Input Integrated Synchronous Buck Regulator with Synchronization Capability

Typical Performance Characteristics
Typical operating characteristics using the circuit shown in Figure 10, unless otherwise specified.
95
95
1.8V_Eff 8-24V_300Khz
90
90
3.3V_Eff 8-24V_300Khz
85
85
80
8V
12V
75
16V
20V
24V
70
0
1
2
3
4
5
6
Load (A)
Figure 12. 1.8 V_OUT Efficiency Over V_IN vs. Load
0.2
Line Regulation
0.15
No Load
0.5A
0.1
0.05
0
0
-0.05
5
10
15
20
25
-0.1
-0.15
-0.2
Input Voltage (V)
Figure 14. 1.8 V_OUT Line Regulation
90
80
Peak CaseTempr over Mosfet Location
@ Room Tempr - 3.3V Output, 500Khz
70
60
50
40
30
20
12Vin_HS
12Vin_LS
10
24Vin_HS
24Vin_LS
0
1
2
3
4
5
6
Load (A)
Figure 16. Peak Case Temp over MOSFET Locations
3.3 V Output, 12 V and 24 V Input (500 KHz)
80
8V
12V
75
16V
20V
24V
70
0
1
2
3
4
5
6
Load (A)
Figure 13. 3.3 V_OUT Efficiency vs. Load
(Circuit Value Changes)
0.15
0.1
Load Regulation
0.05
0
0
1
2
3
4
5
6
7
-0.05
-0.1
-0.15
-0.2
Load (A)
12V Input
16V Input
90
80
70
60
50
40
30
20
10
0
1
Figure 15. 1.8 V_OUT Load Regulation
Peak CaseTempr over Mosfet Location
@ Room Tempr - 5V Output, 300Khz
14V_HS
14V_LS
2
3
4
5
6
Load (A)
Figure 17. Peak Case Temp. Over MOSFET Locations
5 V Output (300 KHz)
© 2006 Fairchild Semiconductor Corporation
FAN21SV06 Rev. 1.0.3
9
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