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線性與低壓差 (LDO) 穩壓器

TPS7A53A-Q1

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產品規格表

TPS7A53A-Q1

現行
產品規格表 立即訂購

產品詳細資料

Rating Automotive Vin (max) (V) 6 Vin (min) (V) 1.13 Iout (max) (A) 3 Output options Fixed Output Vout (max) (V) 1 Vout (min) (V) 1 Fixed output options (V) 1 Noise (µVrms) 5.6 PSRR at 100 KHz (dB) 40 Iq (typ) (mA) 0.7 Features Enable, Foldback Overcurrent protection, Output discharge, Power good, Soft start, Wettable flanks package Thermal resistance θJA (°C/W) 42.5 TI functional safety category Functional Safety-Capable Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Accuracy (%) 0.5 Dropout voltage (Vdo) (typ) (mV) 110 Operating temperature range (°C) -40 to 150
Rating Automotive Vin (max) (V) 6 Vin (min) (V) 1.13 Iout (max) (A) 3 Output options Fixed Output Vout (max) (V) 1 Vout (min) (V) 1 Fixed output options (V) 1 Noise (µVrms) 5.6 PSRR at 100 KHz (dB) 40 Iq (typ) (mA) 0.7 Features Enable, Foldback Overcurrent protection, Output discharge, Power good, Soft start, Wettable flanks package Thermal resistance θJA (°C/W) 42.5 TI functional safety category Functional Safety-Capable Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Accuracy (%) 0.5 Dropout voltage (Vdo) (typ) (mV) 110 Operating temperature range (°C) -40 to 150
WQFN (RTJ) 20 16 mm² (4 mm × 4 mm)
  • 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:
    • IN: VIN + VDO to 6.0 V
    • BIAS: VOUT + VDO(BIAS) to 6.0 V
  • Low dropout: 130 mV at 3 A
  • Output voltage noise: 5.6 µVRMS
  • Accuracy over line, load, and temperature:
    • 1.3% (max)
  • Power-supply ripple rejection:
    • 40 dB at 500 kHz
  • Adjustable soft-start inrush control
  • Open-drain power-good (PG) output
  • Package:
    • 4-mm × 4-mm, 20-pin WQFN with wettable flanks and high CTE (12 ppm/°C) mold compound
  • 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:
    • IN: VIN + VDO to 6.0 V
    • BIAS: VOUT + VDO(BIAS) to 6.0 V
  • Low dropout: 130 mV at 3 A
  • Output voltage noise: 5.6 µVRMS
  • Accuracy over line, load, and temperature:
    • 1.3% (max)
  • Power-supply ripple rejection:
    • 40 dB at 500 kHz
  • Adjustable soft-start inrush control
  • Open-drain power-good (PG) output
  • Package:
    • 4-mm × 4-mm, 20-pin WQFN with wettable flanks and high CTE (12 ppm/°C) mold compound

The TPS7A53A-Q1 is a low-noise (5.6 µVRMS), low-dropout linear regulator (LDO) capable of sourcing 3 A with only 130 mV of dropout.

The combination of low noise (5.6 µVRMS), high PSRR, and high output current capability makes the TPS7A53A-Q1 designed for powering 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 useful for powering RF amplifiers, radar sensors, and chipsets. Specifically, signal chain components benefit from the high-performance of the device. The TPS7A53A-Q1 is available with a wettable flanks option to facilitate optical inspection.

For digital loads [such as application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), and digital signal processors (DSPs)] that require low-input, low-output (LILO) voltage operation, the exceptional accuracy (1.3% over load and temperature), remote sensing, excellent transient performance, and soft-start capabilities of the TPS7A53A-Q1 provide optimal system performance.

The versatility of the TPS7A53A-Q1 makes the device a component of choice for many demanding applications.

The TPS7A53A-Q1 is a low-noise (5.6 µVRMS), low-dropout linear regulator (LDO) capable of sourcing 3 A with only 130 mV of dropout.

The combination of low noise (5.6 µVRMS), high PSRR, and high output current capability makes the TPS7A53A-Q1 designed for powering 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 useful for powering RF amplifiers, radar sensors, and chipsets. Specifically, signal chain components benefit from the high-performance of the device. The TPS7A53A-Q1 is available with a wettable flanks option to facilitate optical inspection.

For digital loads [such as application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), and digital signal processors (DSPs)] that require low-input, low-output (LILO) voltage operation, the exceptional accuracy (1.3% over load and temperature), remote sensing, excellent transient performance, and soft-start capabilities of the TPS7A53A-Q1 provide optimal system performance.

The versatility of the TPS7A53A-Q1 makes the device a component of choice for many demanding applications.
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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 TPS7A53A-Q1 3-A, High-Accuracy, Automotive-Grade, Low-Noise, LDO Voltage Regulator datasheet (Rev. A) PDF | HTML 2022/12/9
白皮書 Reduce System Noise Using Parallel LDOs PDF | HTML 2025/11/3
白皮書 Parallel LDO Architecture Design Using Ballast Resistors PDF | HTML 2022/12/14
白皮書 Comprehensive Analysis and Universal Equations for Parallel LDO's Using Ballast PDF | HTML 2022/12/13

設計與開發

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開發板

TPS7A53EVM-080 — 適用於 3-A、低雜訊、高精確度 LDO 電壓穩壓器的 TPS7A53A 評估模組

TPS7A53EVM-080 評估模組 (EVM) 是用於評估 TPS7A53A-Q1 電壓穩壓器的運作與性能的平台。此 EVM 配置包含適合各種廣泛應用的單一低雜訊、小尺寸、線性穩壓器。此穩壓器利用低壓降 (LDO) 輸入電壓 (VIN) 至輸出電壓 (VOUT) 提供高達 3 A 的負載。

爲了保持穩定，請使用最小降額電容 25-µF（或更大）輸出電容器。隨附新增高性能負載暫態電路，以改善 LDO 穩壓器的量測能力。

使用指南: PDF | HTML
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計算工具

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

並聯低壓差 (LDO) 計算器是以 Microsoft® Excel® 為基礎的工具，可為使用鎮流器電阻器的並聯 LDO 穩壓器提供最壞情況分析。此工具可幫助使用者判斷所需的並聯 LDO 穩壓器最小數量，以及適合系統要求集的最佳鎮流器電阻。

在並聯應用中使用的常用 LDO 穩壓器的產品規格書資訊會預先填入計算機中。使用者可根據自己的系統需求，評估最符合其系統需求的 LDO 穩壓器裝置。

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封裝 針腳 CAD 符號、佔位空間與 3D 模型
WQFN (RTJ) 20 Ultra Librarian
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