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TPS54122-Q1 Datasheet DC-dc Converter

Manufacturer: Texas Instruments

Overview: Product Folder Sample & Buy Technical Documents Tools & Software Support & Community Reference Design TPS54122-Q1 SBVS253A – JANUARY 2015 – REVISED MAY 2015 TPS54122-Q1 Dual-Output, 3-A, QuietSupply™ with Integrated.

General Description

The TPS54122-Q1 combines the efficiency of a stepdown switching (dc-dc) converter with a high powersupply rejection (PSR), low-noise, low-dropout regulator (LDO) to provide an ultralow-noise power supply that delivers QuietSupply rails to noisesensitive applications.

The TPS54122-Q1 is ideally suited for systems with 5-V power busses and can support 3-A continuous output current on both the dc-dc or LDO output.

The LDO output voltage can be set from 0.8 V to 3.6 V and the dc-dc can be adjusted from 0.83 V to 5.0 V using external resistors.

Key Features

  • 1 AEC-Q100 Qualified with the Following Results:.
  • Device Temperature Grade 1:.
  • 40°C to 125°C Ambient Operating Temperature Range.
  • Device HBM ESD Classification Level H2.
  • Device CDM ESD Classification Level C4B.
  • Input Voltage Range:.
  • VIN: 2.95 V to 6.0 V.
  • LDOIN: VOUT + VDO to 5.5 V.
  • BIAS: 2.375 V to 5.5 V.
  • Provides Two Configurable Supply Rails.
  • Independent Enable, Power Good, and Soft-Start.

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