nx2141 Microsemi Corporation, nx2141 Datasheet - Page 10

• Manufacturer Part Number: nx2141
• Description: Single Channel Mobile Pwm Controller With Feedforward And Enable
• Manufacturer: Microsemi Corporation

Demoboard waveforms(cont'd)
Rev. 1.6
05/15/07
Figure 11 - Step VIN response(CH1 Vout AC(50mV/
div), CH3 VIN(5V/div), CH4 SW(5V/div))
Figure 13 - Step into precharged output (CH1 EN (2V/
div), CH3 OUTPUT CURRENT(10A/div), CH4
VOUT(500mV/div))
Figure 15 - Efficiency(VIN=12V, VOUT=1V)
89.00%
88.00%
87.00%
86.00%
85.00%
84.00%
83.00%
82.00%
81.00%
80.00%
79.00%
0
efficinecy vs Iout(VIn=12V)
2
4
Iout(A)
6
8
10
12
Figure 12 - Enlarged Figure 11 (CH1 Vout AC(50mV/
div), CH3 VIN(5V/div), CH4 SW(5V/div))
Figure 14 - Soft start(CH1 EN(2V/div),CH2 output
current(10A/div), CH3 VOUT(500mV/div))
Figure 16 - Efficiency(VIN=19V, VOUT=1V)
86.00%
84.00%
82.00%
80.00%
78.00%
76.00%
74.00%
0
efficinecy vs Iout(VIn=19V)
2
4
Iout(A)
6
8
NX2141
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