Datasheet KA278RXXC (ON Semiconductor) - 7

(KA278R05C) 120 6
Quiescent current Iq(mA) 100 5
RL= 8 Output voltage Vo(V) 7 4
RL=2.5Ω 3
2 80
60
40
20
RL= ∞ 1
0 0
5 0 10 0 5 10 15 20 Input voltage Vin(V) 15 Input voltage Vin (V) Figure 13. Quiescent Current vs. Input Voltage 7 5.06 6 5.04 Output voltage Vo(V) Output voltage Vo(V) Figure 12. Output Voltage vs. Input Voltage 5
4
3
2
1 5.02
5.00
4.98
4.96
4.94 0 0 0.5 1 1.5 2 2.5 4.92
-25 3 0 Disable voltage Vdis (V) 100 125 Figure 15. Output Voltage vs. Temperature (Tj) 0.70 8 0.65
Drop out voltage Vdrop [V] Quiescent current Iq(mA) Figure 14. Output Voltage vs. Disable Voltage 75
25
50
TEMPERATURE Tj(oC) 6 4 2 0 0.60
0.55
0.50 0.40
0.35
0.30
-25 -25 0 25 50 75 100 125 2.0A 0.45 0 25 50 75 100 125 Junction Temp Tj [℃] Junction temperature Tj(oC) Figure 17. Dropout Voltage vs. Junction Temperature figure 16. Quiescent Current vs. Temperature (Tj) © 2004 Fairchild Semiconductor Corporation
KA278RXXC-Series Rev. 1.1.0 www.fairchildsemi.com
6 KA278RXXC-Series — 2 A Output Low Dropout Voltage Regulators Typical Performance Characteristics