12Vdc Input, 2.1A USB Charger for Smart Phones and Tablets Reference Design (PMP7371)

This reference design takes a 12Vdc input (20V max) and generates a 5V/2.1A output for charging smart phone and tablets. The TPS54240 provides a cost effective yet efficient solution for the DC/DC conversion. The TPS2561A provides a precision current limit to protect the device being charged during over load conditions. The CSD25302 provides a gated latch that protects against output over-voltage conditions.

Возможности

Complete USB charging solution The TPS54240 provides a low cost yet high efficiency (~90%) DC/DC conversion. The TPS2561A provides a precision current limit to protect the device from over load conditions. The design implements a latching type output over-voltage protection.

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Спецификация (BOM)

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12Vdc Input, 2.1A USB Charger for Smart Phones and Tablets Reference Design PMP7371