Datasheet Texas Instruments TPS54122QRHLRQ1 — 数据表

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Design TPS54122-Q1
SBVS253A – JANUARY 2015 – REVISED MAY 2015 TPS54122-Q1 Dual-Output, 3-A, QuietSupply™
with Integrated DC-DC Converter and Low-Noise LDO
1 Features 3 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. 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
3-A, High-Efficiency, Synchronous, Step-Down …