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線性與低壓差 (LDO) 穩壓器

TPS7A52-Q1

現行

車用 2-A、低 VIN (1.1-V)、低雜訊、高準確度、低壓降 (LDO) 電壓穩壓器

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產品規格表

TPS7A52-Q1

現行
產品規格表 立即訂購

產品詳細資料

Output options Adjustable Output Iout (max) (A) 2 Vin (max) (V) 6.5 Vin (min) (V) 1.1 Vout (max) (V) 5.2 Vout (min) (V) 0.8 Rating Automotive Noise (µVrms) 4.4 PSRR at 100 KHz (dB) 45 Iq (typ) (mA) 3 Thermal resistance θJA (°C/W) 40 TI functional safety category Functional Safety-Capable Load capacitance (min) (µF) 22 Regulated outputs (#) 1 Features Enable, Foldback Overcurrent protection, Foldback overcurrent protection, Output discharge, Power good, Soft start, Wettable flanks package Accuracy (%) 1 Dropout voltage (Vdo) (typ) (mV) 95 Operating temperature range (°C) -40 to 150
Output options Adjustable Output Iout (max) (A) 2 Vin (max) (V) 6.5 Vin (min) (V) 1.1 Vout (max) (V) 5.2 Vout (min) (V) 0.8 Rating Automotive Noise (µVrms) 4.4 PSRR at 100 KHz (dB) 45 Iq (typ) (mA) 3 Thermal resistance θJA (°C/W) 40 TI functional safety category Functional Safety-Capable Load capacitance (min) (µF) 22 Regulated outputs (#) 1 Features Enable, Foldback Overcurrent protection, Foldback overcurrent protection, Output discharge, Power good, Soft start, Wettable flanks package Accuracy (%) 1 Dropout voltage (Vdo) (typ) (mV) 95 Operating temperature range (°C) -40 to 150
VQFN (RGR) 20 12.25 mm² 3.5 x 3.5 VQFNP (RTK) 20 16 mm² 4 x 4
  • 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 5.2 V
  • Low Dropout: 115 mV (max) at 2 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
  • Packages:
    • 3.5-mm × 3.5-mm, 20-Pin VQFN
    • 4-mm × 4-mm, 20-Pin VQFNP With Wettable Flanks and High CTE (12 ppm/°C) Mold Compound
  • 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 5.2 V
  • Low Dropout: 115 mV (max) at 2 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
  • Packages:
    • 3.5-mm × 3.5-mm, 20-Pin VQFN
    • 4-mm × 4-mm, 20-Pin VQFNP With Wettable Flanks and High CTE (12 ppm/°C) Mold Compound

The TPS7A52-Q1 device is a low-noise (4.4 µVRMS), low-dropout linear regulator (LDO) capable of sourcing 2 A with only 115 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 TPS7A52-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 TPS7A52-Q1 provides optimal system performance.

The versatility of the TPS7A52-Q1 makes the device a component of choice for many demanding applications.

 

The TPS7A52-Q1 device is a low-noise (4.4 µVRMS), low-dropout linear regulator (LDO) capable of sourcing 2 A with only 115 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 TPS7A52-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 TPS7A52-Q1 provides optimal system performance.

The versatility of the TPS7A52-Q1 makes the device a component of choice for many demanding applications.

 
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類型 標題 日期
* Data sheet TPS7A52-Q1 2-A, High-Accuracy, Automotive-Grade, Low-Noise, LDO Voltage Regulator datasheet (Rev. B) PDF | HTML 2018年 6月 26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
Functional safety information TPS7A52-Q1 Functional Safety FIT Rate, FMD and Pin FMA PDF | HTML 2022年 9月 23日
EVM User's guide TPS7A52EVM-002 Evaluation Module User's Guide 2017年 3月 1日
More literature Fundamentals of designing with LDOs in auto battery direct connect applications 2017年 2月 27日

設計與開發

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

TPS7A52EVM-002 — TPS7A52-Q1 2-A 低 VIN (1.1-V) 低雜訊高準確度超 LDO 電壓穩壓器評估模組

The TPS7A52EVM-002 evaluation module (EVM) is designed for a typical configuration to evaluate the operation and performance of the TPS7A52-Q1 device, which is an automotive-grade 2-A low-dropout (LDO) voltage regulator.

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

使用指南: PDF
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模擬型號

TPS7A5201 PSpice Transient Model

SBVM755.ZIP (35 KB) - PSpice Model
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模擬型號

TPS7A5201 Unencrypted PSpice Transient Model

SBVM756.ZIP (2 KB) - PSpice Model
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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 (...)

支援產品和硬體

支援產品和硬體

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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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Design guide: PDF
電路圖: PDF
參考設計

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TIDA-01570 is a reference design for a 76- to 81-GHz radar sensor module. The power supplies on board convert the automotive battery input to the required rails for the radar analog front end (AFE), processors and CAN-FD transceiver. After processing, object data is provided over the included N-FD (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-020004 — 可透過雙 CAN FD 進行物件資料輸出的汽車 RFCMOS 77GHz 雷達模組參考設計

This reference design is a solution for a 76 to 81 GHz radar sensor module. The power supplies on board convert the automotive battery input to the required rails for the radar AFE, processors and CAN FD transceiver. All of these functions are included in a small form factor PCB suitable for front (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-020001 — 車用 144 區局部調光背光參考設計

This local dimming backlight reference design conserves power, extends the life of liquid-crystal displays (LCDs), and enhances automotive display quality through high dynamic range (HDR) or localized dimming technology. Seven multi-channel constant-current LED drivers allow for 144-zone localized (...)
Design guide: PDF
電路圖: PDF
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