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TPS7A53

ACTIVE

3-A, low-VIN (1.1 V) low-noise high-accuracy ultra-low-dropout (LDO) voltage regulator

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Data sheet

A newer version of this product is available

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Drop-in replacement with upgraded functionality to the compared device
NEW TPS7A53B ACTIVE 3-A, 1.1-V, low-VIN, low-noise high-accuracy ultra-low-dropout voltage regulator with 0.5-V low VREF Wider output voltage range, down to 0.5V
Same functionality with different pin-out to the compared device
TPS7A53-Q1 ACTIVE Automotive, 3-A, low-VIN (1.1 V) low-noise high-accuracy ultra-low-dropout (LDO) voltage regulator Low noise 3-A LDO with an extended temperature range.
TPS7A84A ACTIVE 3-A, low-VIN (1.1-V), low-noise, high-accuracy, ultra-low-dropout voltage regulator with power good Low noise 3-A LDO with ANY-OUT programming.

TPS7A53

ACTIVE
Data sheet Order now

Product details

Output options Adjustable Output Iout (max) (A) 3 Vin (max) (V) 6.5 Vin (min) (V) 1.1 Vout (max) (V) 5.15 Vout (min) (V) 0.8 Rating Catalog Noise (µVrms) 4.4 PSRR at 100 KHz (dB) 35 Iq (typ) (mA) 2.8 Thermal resistance θJA (°C/W) 46.5 Load capacitance (min) (µF) 22 Regulated outputs (#) 1 Features Enable, Foldback Overcurrent protection, Output discharge, Power good, Soft start Accuracy (%) 0.5 Dropout voltage (Vdo) (typ) (mV) 60 Operating temperature range (°C) -40 to 125
Output options Adjustable Output Iout (max) (A) 3 Vin (max) (V) 6.5 Vin (min) (V) 1.1 Vout (max) (V) 5.15 Vout (min) (V) 0.8 Rating Catalog Noise (µVrms) 4.4 PSRR at 100 KHz (dB) 35 Iq (typ) (mA) 2.8 Thermal resistance θJA (°C/W) 46.5 Load capacitance (min) (µF) 22 Regulated outputs (#) 1 Features Enable, Foldback Overcurrent protection, Output discharge, Power good, Soft start Accuracy (%) 0.5 Dropout voltage (Vdo) (typ) (mV) 60 Operating temperature range (°C) -40 to 125
VQFN-HR (RPS) 12 5.5 mm² 2.5 x 2.2
  • 0.5% (max) accuracy over line, load, and temperature with BIAS
  • Output voltage noise: 4.4 µVRMS
  • Low dropout: 110 mV (max) at 3 A with BIAS
  • Power-supply rejection ratio:
    • 40 dB at 500 kHz
  • 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 5.2 V
  • Adjustable soft-start inrush control
  • Open-drain, power-good (PG) output
  • 2.2-mm × 2.5-mm, 12-pin VQFN package
  • 0.5% (max) accuracy over line, load, and temperature with BIAS
  • Output voltage noise: 4.4 µVRMS
  • Low dropout: 110 mV (max) at 3 A with BIAS
  • Power-supply rejection ratio:
    • 40 dB at 500 kHz
  • 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 5.2 V
  • Adjustable soft-start inrush control
  • Open-drain, power-good (PG) output
  • 2.2-mm × 2.5-mm, 12-pin VQFN package

The TPS7A53 is a low-noise (4.4 µVRMS), ultra-low dropout linear-regulator (LDO) capable of sourcing 3 A with only 110 mV of maximum dropout. The device output voltage is adjustable from 0.8 V to 5.2 V using an external resistor divider.

The combination of low noise (4.4 µVRMS), high PSRR, and high output current capability makes the TPS7A53 an excellent choice to power noise-sensitive components such as those found in high-speed communications, video, medical, or test-and-measurement applications. The high performance of this device limits power-supply-generated phase noise and clock jitter, making this device ideal for powering high-performance serializer and deserializer (SerDes), analog-to-digital converters (ADCs), and digital-to-analog converters (DACs). Specifically, RF amplifiers benefit from the high performance and
5.2-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 (0.5% over load and temperature), remote sensing, excellent transient performance, and soft-start capabilities of the TPS7A53 provides optimal system performance.

As an adjustable voltage regulator, there is versatility in the design of the TPS7A53 that makes the device a component of choice for analog loads such as VCO, ADC, DAC, and imaging sensors and for digital loads such as SerDes, FPGAs, and DSPs.

The TPS7A53 is a low-noise (4.4 µVRMS), ultra-low dropout linear-regulator (LDO) capable of sourcing 3 A with only 110 mV of maximum dropout. The device output voltage is adjustable from 0.8 V to 5.2 V using an external resistor divider.

The combination of low noise (4.4 µVRMS), high PSRR, and high output current capability makes the TPS7A53 an excellent choice to power noise-sensitive components such as those found in high-speed communications, video, medical, or test-and-measurement applications. The high performance of this device limits power-supply-generated phase noise and clock jitter, making this device ideal for powering high-performance serializer and deserializer (SerDes), analog-to-digital converters (ADCs), and digital-to-analog converters (DACs). Specifically, RF amplifiers benefit from the high performance and
5.2-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 (0.5% over load and temperature), remote sensing, excellent transient performance, and soft-start capabilities of the TPS7A53 provides optimal system performance.

As an adjustable voltage regulator, there is versatility in the design of the TPS7A53 that makes the device a component of choice for analog loads such as VCO, ADC, DAC, and imaging sensors and for digital loads such as SerDes, FPGAs, and DSPs.
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Technical documentation

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* Data sheet TPS7A53 3-A, High-Accuracy (0.5%), Low-Noise (4.4 µVRMS), LDO Voltage Regulator datasheet (Rev. B) PDF | HTML 07 May 2020
White paper Demystifying LDO Turn-On (startup) Time PDF | HTML 05 Oct 2024
Technical article 如何以低雜訊和低漣波設計技術強化電源與訊號完整性 PDF | HTML 04 Oct 2024
Technical article 저잡음 및 저리플 설계 기술로 전력 및 신호 무결성을 향상시키는 방법 PDF | HTML 04 Oct 2024
Technical article How to enhance power and signal integrity with low noise and low ripple design techniques PDF | HTML 25 Sep 2024
White paper Parallel LDO Architecture Design Using Ballast Resistors PDF | HTML 14 Dec 2022
White paper Comprehensive Analysis and Universal Equations for Parallel LDO's Using Ballast PDF | HTML 13 Dec 2022
Technical article Minimize noise and ripple with a low-noise buck converter PDF | HTML 21 Oct 2020

Design & development

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

Evaluation board

TPS7A53EVM-031 — TPS7A53 evaluation module for 3-A, low-VIN, low-noise, high-accuracy ultra-LDO voltage regulator

The TPS7A53 evaluation module (EVM) is designed for a typical configuration to evaluate the operation and performance of the TPS7A53 device, which is a high-accuracy, 3-A, low-VIN, low-VOUT, low-dropout (LDO) voltage regulator.

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

User guide: PDF | HTML
Not available on TI.com
Simulation model

TPS7A5201RPS PSpice Model (Rev. A)

SBVM952A.ZIP (3263 KB) - PSpice Model
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Simulation model

TPS7A5301RPS PSpice Model

SBVM954.ZIP (19 KB) - PSpice Model
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Calculation tool

PARALLEL-LDO-CALC — Parallel low-dropout (LDO) calculator

The parallel low-dropout (LDO) calculator is a Microsoft® Excel®-based tool that provides worst-case analysis for parallel LDO regulators using ballast resistors. The tool helps the user identify the minimum number of parallel LDO regulators required and optimum ballast resistance for a (...)

Supported products & hardware

Supported products & hardware

Products
Linear & low-dropout (LDO) regulators
TPS7A33 — 1-A, high-PSRR, negative, adjustable low-dropout voltage regulator with enable TPS7A47 — 1-A, 36-V, low-noise, high-PSRR, low-dropout voltage regulator with enable TPS7A47-Q1 — Automotive 1-A, 36-V, low-noise, high-PSRR, low-dropout voltage regulator with enable TPS7A4701-EP — Enhanced product, 36-V, 1-A, 4-μVRMS, RF LDO voltage regular TPS7A52 — 2-A, low-VIN (1.1-V), low-noise, high-accuracy, ultra-low-dropout (LDO) voltage regulator TPS7A52-Q1 — Automotive 2-A, low-VIN (1.1-V), low-noise, high-accuracy, ultra-low-dropout (LDO) voltage regulator TPS7A53 — 3-A, low-VIN (1.1 V) low-noise high-accuracy ultra-low-dropout (LDO) voltage regulator TPS7A53-Q1 — Automotive, 3-A, low-VIN (1.1 V) low-noise high-accuracy ultra-low-dropout (LDO) voltage regulator TPS7A53A-Q1 — Automotive, 3-A, low-VIN 5.6-µVRMS low-noise high-accuracy ultra-low dropout voltage regulator TPS7A53B — 3-A, 1.1-V, low-VIN, low-noise high-accuracy ultra-low-dropout voltage regulator with 0.5-V low VREF TPS7A54 — 4-A, low-VIN (1.1-V), low-noise, high-accuracy, ultra-low-dropout (LDO) voltage regulator TPS7A54-Q1 — Automotive 4-A, low-VIN (1.1-V), low-noise, high-accuracy, ultra-low-dropout (LDO) voltage regulator TPS7A57 — 5-A, low-input-voltage, low-noise, high-accuracy low-dropout (LDO) voltage regulator TPS7A83A — 2-A, low-VIN (1.1-V), low-noise, high-accuracy, ultra-low-dropout voltage regulator with power good TPS7A84A — 3-A, low-VIN (1.1-V), low-noise, high-accuracy, ultra-low-dropout voltage regulator with power good TPS7A85A — 4-A, low-VIN (1.1-V), low-noise, high-accuracy, ultra-low-dropout voltage regulator with power good TPS7A94 — 1-A, ultra-low noise, ultra-high PSRR, RF voltage regulator TPS7B7702-Q1 — Automotive 300-mA, off-battery (40-V), dual-channel adjustable antenna low-dropout voltage regulator TPS7A8300 — 2-A, low-VIN, low-2-A, low-VIN, low-noise, ultra-low-dropout voltage regulator with power good wi TPS7A84 — 3-A, low-VIN, low-noise, ultra-low-dropout voltage regulator with power good with high-accuracy TPS7A85 — 4-A, low-VIN, low-noise, ultra-low-dropout voltage regulator with power good with high-accuracy TPS7A96 — 2-A, ultra-low noise ultra-high PSRR RF voltage regulator TPS7A4501-SP — Radiation-hardened, QMLV, 1.5-V to 20-V input 1.5-A low-dropout (LDO) regulator TPS7H1111-SP — Radiation-hardened, QMLV and QMLP, 1.5A ultra-low-noise high-PSRR low-dropout (LDO) regulator TPS7H1111-SEP — Radiation-tolerant, 1.5A, ultra-low-noise ultra-high-PSRR RF LDO regulator TPS7A90 — 500-mA, low-noise, high-PSRR, adjustable ultra-low-dropout voltage regulator with high-accuracy TPS7A91 — 1-A, low-noise, high-PSRR, adjustable ultra-low-dropout voltage regulator with high-accuracy TPS7A92 — 2-A, low-noise, high-PSRR, adjustable ultra-low-dropout voltage regulator with high-accuracy
Hardware development
Evaluation board
TPS7A57EVM-081 — TPS7A57 evaluation module for 5-A low-noise high-accuracy low-dropout (LDO) voltage regulator
Download
Reference designs

TIDA-010230 — Multi-channel RF transceiver, low-noise clocking reference design for radar and EW applications

In modern radar and electronic warfare (EW) systems, active electronically-scanned array (AESA) antenna systems are often used with high speed multi-channel RF transceivers. These systems require very low noise clocking capable of precise channel-to-channel skew adjustment to achieve the optimal (...)
Design guide: PDF
Package Pins CAD symbols, footprints & 3D models
VQFN-HR (RPS) 12 Ultra Librarian
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