Datasheet
Quick Start
Required equipment:
Palo Verde (MAXREFDES33#) board
One 24V, 1A minimum power supply that shows the output current
One electronic load
One voltmeter
Procedure
1. Turn off the power supply.
2. Connect the positive terminal of the power supply to the VIN connector of the MAXREFDES33# board.
3. Connect the negative terminal of the power supply to the GND connector of the MAXREFDES33# board.
4. Connect the positive terminal of the electronic load to J2-6 of the MAXREFDES33# board.
5. Connect the negative terminal of the electronic load to J2-5 of the MAXREFDES33# board.
6. Connect the positive terminal of the voltmeter to the positive terminal of the electronic load.
7. Connect the negative terminal of the voltmeter to the negative terminal of the electronic load.
8. Turn on the power supply.
9. Set the electronic load to a constant current between 0 to 300mA.
10. Verify the voltmeter reading is 3.3V ±0.05V.
Lab Measurements
The Palo Verde design was tested using a 24V input voltage. The performance under other input conditions can be captured
with a similar setup. Refer to the MAX15062 data sheet for detailed performances in other application conditions.
The power efficiency vs load current is illustrated in Figure 2.
Figure 2. Power efficiency vs. current load for 24V input.
Figure 3 and Figure 4 display the ripple at no load (ripple is 6mV peak-peak) and 300mA load (ripple is 8mV peak-peak),
respectively. Channel 1 in the oscilloscope screen shot is voltage at the LX pin. Channel 2 in the oscilloscope screen shot is
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