FAN21SV06_12 Datasheet, PDF (11/17 Pages) Fairchild Semiconductor – TinyBuck™ 6 A, 24V Single-Input Integrated Synchronous Buck Regulator with Synchronization Capability

Typical Performance Characteristics (Continued)
Typical operating characteristics using the circuit shown in Figure 10, unless otherwise specified.
95
95
1.8V_Eff 8-24V_600Khz
90
90
85
80
75
70
0
95
90
85
80
75
70
0
95
90
85
80
75
70
0
8V
12V
16V
20V
24V
1
2
3
4
5
6
Load (A)
Figure 24. 1.8 V_OUT Efficiency 600 KHz
5V_Eff12-24V_300Khz
Using DR1050-2R2-R
Inductor from Cooper
12V
16V
20V
24V
1
2
3
4
5
6
Load (A)
Figure 26. 5 V_OUT Efficiency 300 KHz
(Circuit Values Change)
1.8V_Eff, 12V Input
300Khz
400Khz
500Khz
600Khz
1
2
3
4
5
6
Load (A)
Figure 28. 1.8 V_OUT Efficiency Over f_SW
(Circuit Values Change)
85
80
75
70
0
3
2.5
3.3V_Eff 8-24V_600Khz
8V
12V
16V
20V
24V
1
2
3
4
5
6
Load (A)
Figure 25. 3.3 V_OUT Efficiency 600 KHz
5V_PWRLOSS_12-24V_300Khz
2
Using DR1050-2R2-R
1.5 ^{Inductor from Cooper}
1
12V
0.5
16V
20V
24V
0
0
1
2
3 _{Load (A)} 4
5
6
Figure 27. Device Power Loss (5 V_OUT, 300 KHz)
(Circuit Values Change)
7
Vout Vs Load Current
6
Input Voltage = 20V
Temperature rise = 80DegC
5
4
3
2
20Vin_500Khz
20Vin_600Khz
1
0
0 1 2 3 4 5 6 7 8 9 10 11 12 13
Vout (V)
Figure 29. Typical Output Operating Area Based on
Thermal Limitations (Circuit Values Change)
© 2006 Fairchild Semiconductor Corporation
FAN21SV06 Rev. 1.0.3
11
www.fairchildsemi.com