The MAX1537 evaluation kit (EV kit) demonstrates the
MAX1537's standard application circuit. This dual PWM
synchronous DC-DC converter steps down high-voltage
batteries and/or AC adapters, generating main
supplies for notebook computers. The MAX1537 EV kit
provides dual 5V and 3.3V output voltages from a 6V to
24V battery input range. It delivers up to 6A output current
for the 5V output and 6A for the 3.3V output with
97% efficiency. Both outputs are adjustable between
1V and 5.5V by changing feedback resistors R19-R22.
A transformer on the 5V output generates a 12V auxiliary
voltage capable of delivering 150mA. This auxiliary
voltage is adjustable between 5V and 23V by changing
feedback resistors R17 and R18.
The MAX1537 also has an internal fixed 3.3V and 5V
linear regulator both capable of supplying 100mA.
The MAX1537 EV kit operates at 300kHz switching
frequency.
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