TPS7A53B

現行

具有 0.5-V 低 VREF 的 3-A , 1.1-V ,低 VIN ,低雜訊高準確度超低壓差電壓穩壓器

產品詳細資料

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) 0.5 Noise (µVrms) 4.4 Iq (typ) (mA) 2.8 Thermal resistance θJA (°C/W) 46.5 Rating Catalog Load capacitance (min) (µF) 22 Regulated outputs (#) 1 Features Enable, Foldback Overcurrent protection, Output discharge, Power good, Soft start Accuracy (%) 0.5 PSRR at 100 KHz (dB) 35 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) 0.5 Noise (µVrms) 4.4 Iq (typ) (mA) 2.8 Thermal resistance θJA (°C/W) 46.5 Rating Catalog Load capacitance (min) (µF) 22 Regulated outputs (#) 1 Features Enable, Foldback Overcurrent protection, Output discharge, Power good, Soft start Accuracy (%) 0.5 PSRR at 100 KHz (dB) 35 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
  • Accuracy over line, load, and temperature with BIAS: 0.5%
  • Output voltage noise: 4.6µVRMS
  • Low dropout: 110mV (max) at 3A with BIAS
  • Power-supply rejection ratio:
    • 48dB at 500kHz
  • Input voltage range:
    • Without BIAS: 1.4V to 6.5V
    • With BIAS: 1.1V to 6.5V
  • Adjustable output voltage range: 0.5V to 5.15V
  • Adjustable soft-start inrush control
  • Open-drain, power-good (PG) output
  • 2.5mm × 2.2mm, 12-pin VQFN package
  • Accuracy over line, load, and temperature with BIAS: 0.5%
  • Output voltage noise: 4.6µVRMS
  • Low dropout: 110mV (max) at 3A with BIAS
  • Power-supply rejection ratio:
    • 48dB at 500kHz
  • Input voltage range:
    • Without BIAS: 1.4V to 6.5V
    • With BIAS: 1.1V to 6.5V
  • Adjustable output voltage range: 0.5V to 5.15V
  • Adjustable soft-start inrush control
  • Open-drain, power-good (PG) output
  • 2.5mm × 2.2mm, 12-pin VQFN package

The TPS7A53B is a low-noise (4.6µVRMS), ultra-low dropout linear regulator (LDO) capable of sourcing 3A with only 110mV of maximum dropout. The device output voltage is adjustable from 0.5V to 5.15V using an external resistor divider.

The combination of low noise (4.6µVRMS), high PSRR, and high output current capability makes the TPS7A53B a great solution for powering noise-sensitive components. Applications include high-speed communications, video, medical, or test and measurement. The high PSRR and low noise performance of this device limits power-supply-generated phase noise and clock jitter, making this device a good choice for powering high-performance serializers and deserializers (SerDes), analog-to-digital converters (ADCs), and digital-to-analog converters (DACs). Specifically, RF amplifiers benefit from the high performance and 5.15V 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, 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 TPS7A53B provides optimal system performance.

As an adjustable voltage regulator, the design of the TPS7A53B offers versatility. This versatility makes the device a component of choice for analog loads such as voltage-controlled oscillators (VCOs), ADCs, DACs, and imaging sensors and for digital loads such as SerDes, FPGAs, and DSPs.

The TPS7A53B is a low-noise (4.6µVRMS), ultra-low dropout linear regulator (LDO) capable of sourcing 3A with only 110mV of maximum dropout. The device output voltage is adjustable from 0.5V to 5.15V using an external resistor divider.

The combination of low noise (4.6µVRMS), high PSRR, and high output current capability makes the TPS7A53B a great solution for powering noise-sensitive components. Applications include high-speed communications, video, medical, or test and measurement. The high PSRR and low noise performance of this device limits power-supply-generated phase noise and clock jitter, making this device a good choice for powering high-performance serializers and deserializers (SerDes), analog-to-digital converters (ADCs), and digital-to-analog converters (DACs). Specifically, RF amplifiers benefit from the high performance and 5.15V 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, 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 TPS7A53B provides optimal system performance.

As an adjustable voltage regulator, the design of the TPS7A53B offers versatility. This versatility makes the device a component of choice for analog loads such as voltage-controlled oscillators (VCOs), ADCs, DACs, and imaging sensors and for digital loads such as SerDes, FPGAs, and DSPs.

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類型 標題 日期
* Data sheet TPS7A53B 3A, Low-Input Voltage, Low-Noise, High-Accuracy, Low-Dropout (LDO) Voltage Regulator datasheet (Rev. A) PDF | HTML 2024年 1月 19日
White paper Parallel LDO Architecture Design Using Ballast Resistors PDF | HTML 2022年 12月 14日
White paper Comprehensive Analysis and Universal Equations for Parallel LDO's Using Ballast PDF | HTML 2022年 12月 13日

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如需其他條款或必要資源,請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

TPS7A53EVM-031 — TPS7A53 3-A 低 VIN (1.1-V) 低雜訊高準確度超 LDO 電壓穩壓器評估模組

TPS7A53 評估模組 (EVM) 爲典型配置設計,用於評估 TPS7A53 的運作和性能,其為高度準確 3-A、低 VIN、低 VOUT、低壓差 (LDO) 線性電壓穩壓器。

EVM 電路板主要配置爲參考設計,可供需要高達 3 A 動態負載電流的工程應用。

使用指南: PDF | HTML
TI.com 無法提供
模擬型號

TPS7A53B PSpice Transient Model

SBVM994.ZIP (51 KB) - PSpice Model
計算工具

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 (...)

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硬體開發
開發板
TPS7A57EVM-081 適用於 5-A 低雜訊高準確度低壓差 (LDO) 電壓穩壓器的 TPS7A57 評估模組
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