#EPS - Power Supply module

<img src="./EPS.jpg" width="360px">

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##Features

* Wide input range: 7 to 28 VDC
* High efficiency and reliability: 86% (with 12V in 5V out @ 2A out)
* Standard output 5V @ 2A
* Adjustable output (by easy change of internal resistors) down to 0.8V
* Shutdown input line active low
* Only 1 uA in standby (for battery powered applications)
* Switching frequency: 570 KHz
* High efficiency at light loads (<100mA) with a Pulse skipping Eco-mode
* Overvoltage transient protection
* Overcurrent protection: cycle by cycle current limit, frequency fold back
* Thermal shutdown protection
* Temperature range: -25C to +70C
* Operating Humidity: 20-90% RH( non condensing)
* Cooling: convection
* Weight (typical): open board type: 4.6g
* Header pin mountable
* Pick and place mount of the module itself
* Main chip used texas TPS54231 (<a href="http://focus.ti.com/docs/prod/folders/print/tps54231.html" target="_new">datasheet</a>) 


#EPS pinout

<img src="./EPSpinout.png" width="320px">


<table class='basic'>
	<tr>
		<th>Pin name</th><th>pin number</th><th>Description</th>
	</tr>

	<tr>
		<td>Vin</td><td>8,9,10,11,12,13</td><td>Input supply voltage from 7 to 28 VDC</td>
	</tr>

	<tr>
		<td>Vout</td><td>1,2,3,18,19,20</td><td>Output (standard 5V @2A)</td>
	</tr>
		
	<tr>
		<td>GND</td><td>4,5,6,15,16,17</td><td>Ground</td>
	</tr>

	<tr>
		<td>SHDN#</td><td>7,14</td><td>Disable pin. Pull below 1.25V to disable. Float to enable.</td>
	</tr>
</table>

#Schematic and mechanical

* [EPS schematic](/download/schematics/schematic_eps.pdf)
* [EPS mechanical in pdf](/download/mechanicals/mechanical_eps.pdf)
* [EPS mechanical in dwg](/download/mechanicals/mechanical_eps.dwg)