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TPS51285B - Dual Synchronous Step-Down Controller

Download the TPS51285B datasheet PDF. This datasheet also covers the TPS51285A variant, as both devices belong to the same dual synchronous step-down controller family and are provided as variant models within a single manufacturer datasheet.

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.

Key Features

  • 1.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (TPS51285A-etcTI.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by Texas Instruments

Part Number Description
TPS51285A Dual Synchronous Step-Down Controller
TPS5120 Two-Phase Synchronous Buck DC/DC Controller
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TPS5120-Q1 Two-Phase Synchronous Buck DC/DC Controller
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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
TPS51285A TPS51285B www.ti.com SLVSBX0 – APRIL 2013 Ultra-Low Quiescent (ULQ™) Dual Synchronous Step-Down Controller with 5V and 3.3V LDOs Check for Samples: TPS51285A, TPS51285B FEATURES 1 APPLICATIONS •2 Input Voltage Range: 5 V to 24 V • Notebook Computers • Output Voltages: 5 V and 3.3 V (Adjustable Range ±10%) • Built-in, 100-mA, 5-V and 3.3-V LDOs • Clock Output for Charge-Pump • ±1% Reference Accuracy • Adaptive On-Time D-CAP™ Mode Control Architecture with 400 kHz (CH1) and 475 kHz (CH2) Frequency • Auto-skip and ULQ™ modes for long battery life in system stand-by mode • Internal 0.