Datasheet KA278RXXC (ON Semiconductor) - 5

100 Quiescent current Iq(mA) 4.50
3.75
RL= 3.00 8 Output voltage Vo(V) 5.25 2.25
RL=3.3Ω 1.50 80
60
40
20
RL= ∞ 0.75
0 0
0 2 4 6 8 0 5 10 10 15 20 Input voltage Vin(V) Input voltage Vin (V) Figure 4. Quiescent Current vs. Input Voltage 5.25 3.36 4.50 3.34 Output voltage Vo(V) Output voltage Vo(V) Figure 3. Output Voltage vs. Input Voltage 3.75
3.00
2.25
1.50
0.75 3.32
3.30
3.28
3.26
3.24 0
0 0.5 1 1.5 2 2.5 3.22
-25 3 0 Disable voltage Vdis (V) Figure 5. Output Voltage vs. Disable Voltage 125 0.70
0.65 8
Drop out voltage Vdrop [V] Quiescent current Iq(mA) 100 Figure 6. Output Voltage vs. Temperature (Tj) 10 6 4 2 0 75
25
50
TEMPERATURE Tj(oC) -25 0 25 50 75 0.55
0.50 100 125 2.0A 0.45
0.40
0.35
0.30
-25 0 25 50 75 100 125 Junction Temp Tj [℃] Junction temperature Tj(oC) Figure 8. Dropout Voltage vs. Junction Temperature Figure 7. Quiescent Current vs. Temperature (Tj) © 2004 Fairchild Semiconductor Corporation
KA278RXXC-Series Rev. 1.1.0 0.60 www.fairchildsemi.com
4 KA278RXXC-Series — 2 A Output Low Dropout Voltage Regulators Typical Performance Characteristics (KA278R33C)