AME, Inc.
Micropower Step-Up
DC/DC Converter
AME5138
Typical Switching Waveform
Typical Switching Waveform
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3
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VOUT=20V, VIN=2.5V
VOUT = 14V, VIN=3.6V; 4LEDs
IOUT = 15mA
1)VSW, 20V/div,DC
2)VOUT, 200mV/div.AC
1) VSW, 20V / div, DC
3)Inductor Current, 200mA/div,DC
Load Current=10mA
2) Inductor Current, 100mA / div, DC
3) VOUT, 100mV / div. AC
T=10ms/div
Step Response
Start-Up/Shutdown
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VOUT = 20V, VIN = 2.5V
1) EN, 1V/div,DC
VOUT=20V, VIN=2.5V
1)Load, 1mA to 10mA to 1mA,DC
2)VOUT, 200mV/div.AC
3)Inductor Current 200mA/div,DC
T=1ms/div
2) VOUT, 20V/div,DC
3) Inductor Current 200mA/div,DC
RL =1.8kW,
T= 200ms/div
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AME [ ANALOG MICROELECTRONICS ]
