MC33263
TYPICAL PERFORMANCE CHARACTERISTICS
Noise Performances
350
300
0 nF
250
3.3 nF
200
Cbyp = 10 nF
150
Vin = 3.8 V
Vout = 2.8 V
CO = 1.0 mF
Iout = 60 mA
Tamb = 23°C
100 Vn = 65 mVrms @ Cbypass = 0
50
Vn = 30 mVrms @ Cbypass = 3.3 nF
Vn = 25 mVrms @ Cbypass = 10 nF
0 over 100 Hz to 100 kHz
100
1000
10,000
FREQUENCY (Hz)
100,000
1,000,000
70
60
50
40
30
Vin = 3.8 V
20 Vout = 2.8 V
CO = 1.0 mF
10 Iout = 60 mA
Tamb = 25°C
0
0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10
BYPASS CAPACITOR (nF)
Figure 15. Noise Density versus Bypass
Capacitor
Figure 16. RMS Noise versus Bypass Capacitor
(100 Hz – 100 kHz)
Settling Time Performances
1200
1000
Vin = 3.8 V
Vout = 2.8 V
CO = 1.0 mF
800 Iout = 60 mA
Tamb = 25°C
600
400
200
0
0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10
BYPASS CAPACITOR (nF)
200 ms/div
500 mV/div
Cbyp = 10 nF
Vin = 3.8 V
Vout = 2.8 V
Cout = 1.0 mF
Iout = 50 mA
Tamb = 25°C
Figure 17. Output Voltage Settling Time versus
Bypass Capacitor
Figure 18. Output Voltage Settling Shape
Cbypass = 10 nF
100 ms/div
500 mV/div
Cbyp = 3.3 nF
Vin = 3.8 V
Vout = 2.8 V
Cout = 1.0 mF
Iout = 50 mA
Tamb = 25°C
Figure 19. Output Voltage Settling Shape
Cbypass = 3.3 nF
10 ms/div
500 mV/div
Cbyp = 0 nF
Vin = 3.8 V
Vout = 2.8 V
Cout = 1.0 mF
Iout = 50 mA
Tamb = 25°C
Figure 20. Output Voltage Settling Shape without
Bypass Capacitor
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