MAX1549EVKIT

The MAX1549EVKIT demonstrates the MAX1549's standard application circuit. This DC-DC converter steps down high-voltage batteries and/or AC adapters, generating precision low-voltage chipset and RAM power supplies for notebook computers.The MAX1549EVKIT provides a dynamically adjustable 0.7V to 1.5V output voltage range (OUT1), and a fixed 2.5V output  voltage (OUT2) from a 5V to 20V battery input range.
 
Features of the MAX1549EVKIT are:(1)5v to 20v input voltage range;(2)four digitally selectable operating voltages (out1);(3)dynamically selectable output voltages 0.7v/1.0v/1.3v/1.5v (out1, adjustable from 0.5v to 2.0v);(4) fixed 2.5v output voltage (out2, adjustable from 0.5v to 2.7v);(5)6a output current (out1);(6)4a output current (out2);(7)300khz switching frequency;(8)independent power-good outputs;(9)low-profile components;(10) fully assembled and tested.

The procedure of the MAX1549EVKIT can be summarized as:(1):ensure that the circuit is connected correctly to the supplies and dummy loads prior to applying any power;(2):verify that the shunts are installed across pins 1 and 2 of jumper JU1 (ON1 high), pins 1 and 2 of jumper JU2 (ON2 high), and pins 1 and 2 of JU6 (SKIP high, forced PWM);(3):turn on battery power prior to +5V bias power; otherwise, the output UVLO timer times out and the FAULT latch is set, disabling the regulator outputs until +5V power is cycled or ON1/ON2 is toggled;(4):Verify that the output voltages are VOUT1 = 1.5V,VOUT2 = 2.5V.