A search found TI has an line of USB Switches with integrated Boost Converters (one with an added 3.3v LDO out as well)

http://www.ti.com/paramsearch/docs/parametricsearch.tsp?family=analog&amp;familyId=3189&amp;uiTemplateId=NODE_STRY_PGE_T&amp;paramCriteria=no

The TPS2500 and TPS2501 are the same except for a power save mode on the 2500. 1.8v to 5v input, regulated 5v out with selectable current limiting. Current output up to 1.4A on a single current limited output.

The TSP2505 has two individually limited outputs, an aux 5v out, a 3.3v ldo, and can source up to 2.3A between the aux and usb outputs.

USB host power dc/dc converter chip
We are devoloping an android app for a Magento site.

I am facing problem while I try to login(authentication) as magento customer.

I can't find a proper way to login as a customer using email and password.

how can I authenticate or login as a customer?

I followed this links answer: http://stackoverflow.com/questions/25055700/android-magento-customer-loginauthentication-using-using-soap-api

according to that, I created this file: http://pastebin.com/RJAGxTDS under http://hotwheelstoys.in/testing/testing/Mage3.php

But when we pass the values using JSON, we are getting "null".

I saw this link : http://www.magentocommerce.com/api/soap/introduction.html

But there is no API for login through android.
