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Product details

Parameters

Output options Adjustable Output Iout (Max) (A) 4 Vin (Max) (V) 6.5 Vin (Min) (V) 1.1 Vout (Max) (V) 5.1 Vout (Min) (V) 0.8 Noise (uVrms) 4.4 Iq (Typ) (mA) 3 Thermal resistance θJA (°C/W) 40 TI functional safety category Functional Safety-Capable Load capacitance (Min) (µF) 22 Rating Automotive Regulated outputs (#) 1 Features Enable, Foldback Overcurrent Protection, Output Discharge, Power Good, Soft Start Accuracy (%) 1 PSRR @ 100 KHz (dB) 33 Dropout voltage (Vdo) (Typ) (mV) 150 Operating temperature range (C) -40 to 150 open-in-new Find other Linear regulators (LDO)

Package | Pins | Size

VQFN (RGR) 20 12 mm² 3.5 x 3.5 open-in-new Find other Linear regulators (LDO)

Features

  • Qualified for Automotive Applications
  • AEC-Q100 Qualified for Automotive Applications
    • Temperature Grade 1: –40°C ≤ TA ≤ +125°C
    • HBM ESD Classification Level 2
    • CDM ESD Classification Level C4A
  • Extended Junction Temperature (TJ) Range: –40°C to +150°C
  • Input Voltage Range:
    • Without BIAS: 1.4 V to 6.5 V
    • With BIAS: 1.1 V to 6.5 V
  • Adjustable Output Voltage Range: 0.8 V to 5.1 V
  • Low Dropout: 240 mV (max) at 4 A With BIAS
  • Output Voltage Noise: 4.4 µVRMS
  • 1% (max) Accuracy Over Line, Load, and Temperature With BIAS
  • Power-Supply Ripple Rejection:
    • 40 dB at 500 kHz
  • Adjustable Soft-Start Inrush Control
  • Open-Drain, Power-Good (PG) Output
  • 3.5-mm × 3.5-mm, 20-Pin VQFN Package

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open-in-new Find other Linear regulators (LDO)

Description

The TPS7A54-Q1 device is a low-noise (4.4 µVRMS), low-dropout linear regulator (LDO) capable of sourcing 4 A with only 240 mV of maximum dropout. The device output voltage is adjustable from 0.8 V to 5.1 V using an external resistor divider.

The combination of low-noise (4.4 µVRMS), high-PSRR, and high output current capability makes the TPS7A54-Q1 ideal to power noise-sensitive components such as those found in radar power and infotainment applications. The high performance of this device limits power-supply-generated phase noise and clock jitter, making this device ideal for powering RF amplifiers, radar sensors, and chipsets. Specifically, RF amplifiers benefit from the high-performance and 5.0-V output capability of the device.

For digital loads [such as application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), and digital signal processors (DSPs)] requiring low-input voltage, low-output (LILO) voltage operation, the exceptional accuracy (1% over load and temperature), remote sensing, excellent transient performance, and soft-start capabilities of the TPS7A54-Q1 provides optimal system performance.

The versatility of the TPS7A54-Q1 makes the device a component of choice for many demanding applications.

 

open-in-new Find other Linear regulators (LDO)
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Technical documentation

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet TPS7A54-Q1 4-A, High-Accuracy, Automotive-Grade, Low-Noise, LDO Voltage Regulator datasheet (Rev. A) Feb. 28, 2018
Technical articles LDO basics: capacitor vs. capacitance Aug. 01, 2018
Technical articles LDO Basics: Preventing reverse current Jul. 25, 2018
Technical articles LDO basics: introduction to quiescent current Jun. 20, 2018
User guide TPS7A54EVM-006 Evaluation Module User's Guide Mar. 01, 2018
Technical articles LDO basics: noise – part 1 Jun. 14, 2017
More literature Fundamentals of designing with LDOs in auto battery direct connect applications Feb. 27, 2017

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARD Download
document-generic User guide
29
Description

The TPS7A54EVM-006 evaluation module (EVM) is designed for a typical configuration to evaluate the operation and performance of the TPS7A54-Q1 device, which is an automotive-grade 4-A low-dropout (LDO) voltage regulator.

The EVM circuit board is configured to be a reference design for engineering (...)

Features
  • Automotive grade
  • High power-supply ripple rejection: 40 dB at 500 kHz
  • Output-voltage noise: 4.4 μVRMS
  • Adjustable soft-start in-rush control
  • Open-drain power-good (PG) output

Design tools & simulation

SIMULATION MODEL Download
SBVM753.ZIP (3 KB) - PSpice Model
SIMULATION MODEL Download
SBVM754.ZIP (42 KB) - PSpice Model

CAD/CAE symbols

Package Pins Download
VQFN (RGR) 20 View options

Ordering & quality

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  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

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