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TPS25846-Q1 - Synchronous Step-Down Converter

Description

The TPS25846-Q1 is a USB Type-A BC1.2 charging solution that includes a synchronous DC/DC converter.

With cable droop compensation, the Vbus voltage remains constant regardless of load current, ensuring connected portable devices are charged at optimal current and voltage even under heavy loads.

Features

  • AEC-Q100 qualified for automotive.

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Full PDF Text Transcription

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TPS25846-Q1 SLVSFJ5B – JUNE 2020 – REVISED MARCH 2022 TPS25846-Q1 Automotive USB Type-A BC1.2 5-V 3.5-A Output, 36-V Input Synchronous Step-Down Converter With Cable Compensation 1 Features • AEC-Q100 qualified for automotive applications: – Temperature grade 1: –40°C to +125°C, TA – HBM ESD classification level H2 – CDM ESD classification level C5 • Synchronous buck DC/DC regulator – Input voltage range: 4.5 V to 36 V – Output current: 3.5 A – 5.1-V output voltage with ±1% accuracy – Current mode control – Adjustable frequency: 300 kHz to 2.2 MHz – Frequency synchronization to external clock – FPWM with spread-spectrum dithering – Internal compensation for ease of use • Compliant to USB-IF standards – CDP/SDP mode per USB BC1.
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