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TPS51285A - Dual Synchronous Step-Down Controller

General Description

The TPS51285A and TPS51285B are cost-effective, dual synchronous buck controllers with 5-V and 3.3-V LDOs, targeted for notebook system-power supply solutions.

The device achieves low power consumption by the use of auto-skip and ULQ™ modes, which is beneficial for long battery life in system stand-by mode.

The 256-kHz VCLK output is provided to drive an external charge pump, generating gate drive voltage for the load switches with minimum power consumption in the main converter.

Overview

TPS51285A TPS51285B www.ti.com SLVSBX0 – APRIL 2013 Ultra-Low Quiescent (ULQ™) Dual Synchronous Step-Down Controller with 5V and 3.

Key Features

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