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TPS7A53 ACTIVE 3-A, low-VIN (1.1-V), low-noise, high-accuracy, ultra-low-dropout (LDO) voltage regulator Alternative product offering much lower noise performance in smaller enhanced QFN package

Product details

Output options Adjustable Output Iout (Max) (A) 3 Vin (Max) (V) 5.5 Vin (Min) (V) 0.8 Vout (Max) (V) 3.6 Vout (Min) (V) 0.8 Noise (uVrms) 13 Iq (Typ) (mA) 3 Thermal resistance θJA (°C/W) 27 Rating HiRel Enhanced Product Load capacitance (Min) (µF) 0 Regulated outputs (#) 1 Features Enable, Power Good, Soft Start Accuracy (%) 1 PSRR @ 100 KHz (dB) 50 Dropout voltage (Vdo) (Typ) (mV) 115 Operating temperature range (C) -55 to 125
Output options Adjustable Output Iout (Max) (A) 3 Vin (Max) (V) 5.5 Vin (Min) (V) 0.8 Vout (Max) (V) 3.6 Vout (Min) (V) 0.8 Noise (uVrms) 13 Iq (Typ) (mA) 3 Thermal resistance θJA (°C/W) 27 Rating HiRel Enhanced Product Load capacitance (Min) (µF) 0 Regulated outputs (#) 1 Features Enable, Power Good, Soft Start Accuracy (%) 1 PSRR @ 100 KHz (dB) 50 Dropout voltage (Vdo) (Typ) (mV) 115 Operating temperature range (C) -55 to 125
VQFN (RGW) 20 25 mm² 5 x 5
  • Soft-Start (SS) Pin Provides a Linear Startup with Ramp Time Set by External Capacitor
  • 1% Accuracy Over Line, Load, and Temperature
  • Supports Input Voltages as Low as 0.9 V with External Bias Supply
  • Adjustable Output (0.8 V to 3.6 V)
  • Ultra-Low Dropout: 115 mV at 3.0 A (typ)
  • Stable with Any or No Output Capacitor
  • Excellent Transient Response
  • Available in 5 mm × 5 mm × 1 mm QFN Package
  • Active High Enable
  • SUPPORTS DEFENSE, AEROSPACE, AND MEDICAL APPLICATIONS
    • Controlled Baseline
    • One Assembly/Test Site
    • One Fabrication Site
    • Available in Military (–55°C/125°C) Temperature Ranges(1)
    • Extended Product Life Cycle
    • Extended Product-Change Notification
    • Product Traceability
  • APPLICATIONS
    • FPGA Applications
    • DSP Core and I/O Voltages
    • Post-Regulation Applications
    • Applications with Special Start-Up Time or Sequencing Requirements
    • Hot-Swap and Inrush Controls

(1) Custom temperature ranges available
All other trademarks are the property of their respective owners

  • Soft-Start (SS) Pin Provides a Linear Startup with Ramp Time Set by External Capacitor
  • 1% Accuracy Over Line, Load, and Temperature
  • Supports Input Voltages as Low as 0.9 V with External Bias Supply
  • Adjustable Output (0.8 V to 3.6 V)
  • Ultra-Low Dropout: 115 mV at 3.0 A (typ)
  • Stable with Any or No Output Capacitor
  • Excellent Transient Response
  • Available in 5 mm × 5 mm × 1 mm QFN Package
  • Active High Enable
  • SUPPORTS DEFENSE, AEROSPACE, AND MEDICAL APPLICATIONS
    • Controlled Baseline
    • One Assembly/Test Site
    • One Fabrication Site
    • Available in Military (–55°C/125°C) Temperature Ranges(1)
    • Extended Product Life Cycle
    • Extended Product-Change Notification
    • Product Traceability
  • APPLICATIONS
    • FPGA Applications
    • DSP Core and I/O Voltages
    • Post-Regulation Applications
    • Applications with Special Start-Up Time or Sequencing Requirements
    • Hot-Swap and Inrush Controls

(1) Custom temperature ranges available
All other trademarks are the property of their respective owners

The TPS74401 low-dropout (LDO) linear regulator provides an easy-to-use robust power management solution for a wide variety of applications. User-programmable soft-start minimizes stress on the input power source by reducing capacitive inrush current on start-up. The soft-start is monotonic and well-suited for powering many different types of processors and ASICs. The enable input and power-good output allow easy sequencing with external regulators. This complete flexibility permits the user to configure a solution that will meet the sequencing requirements of FPGAs, DSPs, and other applications with specific start-up requirements.

A precision reference and error amplifier deliver 1% accuracy over load, line, temperature, and process. Each LDO is stable with low-cost ceramic output capacitors and the device is fully specified from –55°C to 125°C.

The TPS74401 low-dropout (LDO) linear regulator provides an easy-to-use robust power management solution for a wide variety of applications. User-programmable soft-start minimizes stress on the input power source by reducing capacitive inrush current on start-up. The soft-start is monotonic and well-suited for powering many different types of processors and ASICs. The enable input and power-good output allow easy sequencing with external regulators. This complete flexibility permits the user to configure a solution that will meet the sequencing requirements of FPGAs, DSPs, and other applications with specific start-up requirements.

A precision reference and error amplifier deliver 1% accuracy over load, line, temperature, and process. Each LDO is stable with low-cost ceramic output capacitors and the device is fully specified from –55°C to 125°C.

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Technical documentation

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Type Title Date
* Data sheet 3.0A Ultra-LDO With Programmable Soft-Start. datasheet (Rev. B) 08 Sep 2010
* VID TPS74401-EP VID V6210611 21 Jun 2016
* Radiation & reliability report TPS74401MRGWTEP Reliability Report 26 Oct 2011
Technical article 3 quiescent-current (Iq) specifications you need to understand 12 Nov 2021

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Reference designs

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The TIDA-01442 reference design utilizes the ADC12DJ3200 evaluation module (EVM) to demonstrate a direct RF-sampling receiver for a radar operating in HF, VHF, UHF, L-, S-, C-, and part of X-band. The wide analog input bandwidth and high sampling rate (6.4 GSPS) of the analog-to-digital (...)
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VQFN (RGW) 20 View options

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