NCP1529ASNT1G Datasheet, PDF (9/16 Pages) ON Semiconductor – 1.7MHz, 1A, High Efficiency, Low Ripple, Adjustable Output Voltage Step-down Converter

NCP1529
Figure 21. Typical Soft−Start (V_IN = 3.6 V, V_OUT = 1.2 V,
I_OUT = 100 mA, Temperature = 255C)
Figure 22. Short−Circuit Protection (V_IN = 3.6 V,
V_OUT = 1.2 V, I_OUT = CC, Temperature = 255C)
2.60
1.2
2.55
1.1
UVLOrise
2.50
1.0
2.45
0.9
UVLOfall
2.40
0.8
V_IH
2.35
0.7
V_IL
2.30
0.6
2.25
0.5
2.20
−50 −25 0
25 50
75 100 125
T_A, AMBIENT TEMPERATURE (°C)
Figure 23. Undervoltage Lockout Threshold
vs. Ambient Temperature
0.4
−40
−15
10
35
60
85
T_A, AMBIENT TEMPERATURE (°C)
Figure 24. Enable Threshold Voltages vs.
Ambient Temperature
70
50
30
10
−10
−30
−50
10
200
160
120
80
Phase
40
0
Gain
−40
−80
−120
−160
100
1000
10000 100000 1000000
FREQUENCY (Hz)
Figure 25. Phase and Gain Performance
(V_IN = 3.6 V, V_OUT = 1.2 V, I_OUT = 200 mA, Temperature = 255C)
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