TPS7A47

現行

具啟用功能的 1-A、36-V、低雜訊、高 PSRR、低壓差電壓穩壓器

產品詳細資料

Output options Adjustable Output, Fixed Output Iout (max) (A) 1 Vin (max) (V) 36 Vin (min) (V) 3 Vout (max) (V) 34 Vout (min) (V) 1.4 Noise (µVrms) 4 Iq (typ) (mA) 0.58 Thermal resistance θJA (°C/W) 30.5 Rating Catalog Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Features Enable, Soft start Accuracy (%) 2.5 PSRR at 100 KHz (dB) 60 Dropout voltage (Vdo) (typ) (mV) 307 Operating temperature range (°C) -40 to 125
Output options Adjustable Output, Fixed Output Iout (max) (A) 1 Vin (max) (V) 36 Vin (min) (V) 3 Vout (max) (V) 34 Vout (min) (V) 1.4 Noise (µVrms) 4 Iq (typ) (mA) 0.58 Thermal resistance θJA (°C/W) 30.5 Rating Catalog Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Features Enable, Soft start Accuracy (%) 2.5 PSRR at 100 KHz (dB) 60 Dropout voltage (Vdo) (typ) (mV) 307 Operating temperature range (°C) -40 to 125
VQFN (RGW) 20 25 mm² 5 x 5
  • Input Voltage Range: +3 V to +36 V
  • Output Voltage Noise:
    4 µVRMS (10 Hz, 100 kHz)
  • Power-Supply Ripple Rejection:
    • 82 dB (100 Hz)
    • > 55 dB (10 Hz, 10 MHz)
  • Two Output Voltage Modes:
    • ANY-OUT™ Version (User-Programmable
      Output via PCB Layout):
      • No External Feedback Resistors or
        Feed-Forward Capacitors Required
      • Output Voltage Range: +1.4 V to +20.5 V
    • Adjustable Version (TPS7A4701 only):
      • Output Voltage Range: +1.4 V to +34 V
  • Output Current: 1 A
  • Dropout Voltage: 307 mV at 1 A
  • CMOS Logic Level-Compatible Enable Pin
  • Built-In Fixed Current Limit and
    Thermal Shutdown
  • Available in High-Performance Thermal Package:
    5-mm × 5-mm QFN
  • Operating Temperature Range:
    –40°C to 125°C
  • Input Voltage Range: +3 V to +36 V
  • Output Voltage Noise:
    4 µVRMS (10 Hz, 100 kHz)
  • Power-Supply Ripple Rejection:
    • 82 dB (100 Hz)
    • > 55 dB (10 Hz, 10 MHz)
  • Two Output Voltage Modes:
    • ANY-OUT™ Version (User-Programmable
      Output via PCB Layout):
      • No External Feedback Resistors or
        Feed-Forward Capacitors Required
      • Output Voltage Range: +1.4 V to +20.5 V
    • Adjustable Version (TPS7A4701 only):
      • Output Voltage Range: +1.4 V to +34 V
  • Output Current: 1 A
  • Dropout Voltage: 307 mV at 1 A
  • CMOS Logic Level-Compatible Enable Pin
  • Built-In Fixed Current Limit and
    Thermal Shutdown
  • Available in High-Performance Thermal Package:
    5-mm × 5-mm QFN
  • Operating Temperature Range:
    –40°C to 125°C

The TPS7A47 is a family of positive voltage (+36 V), ultralow-noise (4 µVRMS) low-dropout linear regulators (LDO) capable of sourcing a 1-A load.

The TPS7A4700 output voltages are user-programmable (up to 20.5 V) using a printed circuit board (PCB) layout without the need of external resistors or feed-forward capacitors, thus reducing overall component count.

The TPS7A4701 output voltage can be configured with a user-programmable PCB layout (up to 20.5 V), or adjustable (up to 34 V) with external feedback resistors.

The TPS7A47 is designed with bipolar technology primarily for high-accuracy, high-precision instrumentation applications where clean voltage rails are critical to maximize system performance. This feature makes the device ideal for powering operational amplifiers, analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and other high-performance analog circuitry in critical applications such as medical, radio frequency (RF), and test-and-measurement.

In addition, the TPS7A47 is ideal for post dc-dc converter regulation. By filtering out the output voltage ripple inherent to dc-dc switching conversions, maximum system performance is ensured in sensitive instrumentation, test-and-measurement, audio, and RF applications.

For applications where positive and negative low-noise rails are required, consider TI’s TPS7A33 family of negative high-voltage, ultralow-noise linear regulators.

The TPS7A47 is a family of positive voltage (+36 V), ultralow-noise (4 µVRMS) low-dropout linear regulators (LDO) capable of sourcing a 1-A load.

The TPS7A4700 output voltages are user-programmable (up to 20.5 V) using a printed circuit board (PCB) layout without the need of external resistors or feed-forward capacitors, thus reducing overall component count.

The TPS7A4701 output voltage can be configured with a user-programmable PCB layout (up to 20.5 V), or adjustable (up to 34 V) with external feedback resistors.

The TPS7A47 is designed with bipolar technology primarily for high-accuracy, high-precision instrumentation applications where clean voltage rails are critical to maximize system performance. This feature makes the device ideal for powering operational amplifiers, analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and other high-performance analog circuitry in critical applications such as medical, radio frequency (RF), and test-and-measurement.

In addition, the TPS7A47 is ideal for post dc-dc converter regulation. By filtering out the output voltage ripple inherent to dc-dc switching conversions, maximum system performance is ensured in sensitive instrumentation, test-and-measurement, audio, and RF applications.

For applications where positive and negative low-noise rails are required, consider TI’s TPS7A33 family of negative high-voltage, ultralow-noise linear regulators.

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TPS7A88 現行 1-A、低雜訊、高 PSRR、雙通道可調式超低壓降電壓穩壓器 A dual-channel, low noise, 1-A LDO.
TPS7A91 現行 具高準確度的 1-A、低雜訊、高 PSRR、可調式超低壓降電壓穩壓器 A single-channel, low-noise, 1-A LDO.

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類型 標題 日期
* Data sheet TPS7A470x 36-V, 1-A, 4-µVRMS, RF LDO Voltage Regulator datasheet (Rev. F) PDF | HTML 2014年 10月 1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
Application note LDO Noise Demystified (Rev. B) PDF | HTML 2020年 8月 18日
Technical article Choosing buck converters and LDOs for miniature industrial automation equipment PDF | HTML 2020年 1月 29日
Application note A Topical Index of TI LDO Application Notes (Rev. F) 2019年 6月 27日
Technical article Designing a pre-tracking regulator, part 1: for a positive-output LDO PDF | HTML 2019年 2月 18日
Selection guide Power Management Guide 2018 (Rev. R) 2018年 6月 25日
Selection guide Low Dropout Regulators Quick Reference Guide (Rev. P) 2018年 3月 21日
Technical article Designing a power supply solution for pipeline ADCs – Part 1 PDF | HTML 2015年 9月 3日
Technical article How to filter out noise in your DC/DC design PDF | HTML 2015年 8月 18日
White paper How to measure LDO noise 2015年 7月 24日
User guide TPS7A47xxEVM-094 Evaluation Module (Rev. A) 2013年 8月 2日
Analog Design Journal 1Q 2013Issue Analog Applications Journal 2013年 1月 22日
Analog Design Journal How to pick a linear regulator for noise-sensitive applications 2013年 1月 22日
Application note ANY-OUT™ LDO Controlled by I2C™ IO Expander Device (Rev. A) 2012年 9月 20日

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模擬型號

TPS7A4700 PSpice Transient Model (Rev. A)

SBVM190A.ZIP (40 KB) - PSpice Model
模擬型號

TPS7A4700 TINA-TI Transient Reference Design

SBVM302.TSC (776 KB) - TINA-TI Reference Design
模擬型號

TPS7A4700 TINA-TI Transient Spice Model

SBVM303.ZIP (10 KB) - TINA-TI Spice Model
模擬型號

TPS7A4700 Unencrypted PSpice Model

SBVM663.ZIP (1 KB) - PSpice Model
模擬型號

TPS7A4700 Unencrypted PSpice Transient Model

SBVM939.ZIP (2 KB) - PSpice Model
模擬型號

TPS7A4701 PSpice Transient Model (Rev. A)

SBVM364A.ZIP (40 KB) - PSpice Model
模擬型號

TPS7A4701 TINA-TI Transient Reference Design

SBVM401.ZIP (15 KB) - TINA-TI Reference Design
模擬型號

TPS7A4701 TINA-TI Transient Spice Model

SBVM402.ZIP (9 KB) - TINA-TI Spice Model
模擬型號

TPS7A4701 Unencrypted PSpice Transient Model (Rev. A)

SBVM621A.ZIP (2 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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產品
線性與低壓差 (LDO) 穩壓器
TPS7A33 具啟用功能的 1A、高 PSRR、負可調式超低壓差電壓穩壓器 TPS7A47 具啟用功能的 1-A、36-V、低雜訊、高 PSRR、低壓差電壓穩壓器 TPS7A47-Q1 具有啟用功能的汽車 1-A、36-V、低雜訊、高 PSRR、低壓差電壓穩壓器 TPS7A4701-EP 強化型 36-V、1-A、4-μVRMS、RF LDO 電壓穩壓器 TPS7A52 2-A、低 VIN (1.1-V)、低雜訊、高準確度、超低壓差 (LDO) 電壓穩壓器 TPS7A52-Q1 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 TPS7A53 3-A、低輸入電壓 (1.1 V) 低雜訊高準確度超低壓差 (LDO) 電壓穩壓器 TPS7A53-Q1 車用 3-A、低 VIN (1.1 V)、低雜訊、高準確度、低壓降 (LDO) 電壓穩壓器 TPS7A53A-Q1 車用 3-A、低 VIN 5.6-µVRMS 低雜訊高準確度低壓降電壓穩壓器 TPS7A53B 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 TPS7A54 4-A、低 VIN (1.1-V)、低雜訊、高準確度、超低壓差 (LDO) 電壓穩壓器 TPS7A54-Q1 車用 4-A、低 VIN (1.1-V)、低雜訊、高準確度、低壓差 (LDO) 電壓穩壓器 TPS7A57 5-A、低輸入電壓、低雜訊、高準確度、低壓差 (LDO) 電壓穩壓器 TPS7A83A 具有電源良好功能的 2-A、低 VIN (1.1-V)、低雜訊、高準確度、超低壓差電壓穩壓器 TPS7A84A 具有電源良好功能的 3-A、低 VIN (1.1-V)、低雜訊、高準確度、超低壓差電壓穩壓器 TPS7A85A 具有電源良好功能的 4-A、低 VIN (1.1-V)、低雜訊、高準確度、超低壓差電壓穩壓器 TPS7A94 1-A、超低雜訊、超高 PSRR、射頻電壓穩壓器 TPS7B7702-Q1 汽車 300-mA、無電池 (40-V)、雙通道可調整天線低壓差電壓穩壓器 TPS7A8300 2-A、低 VIN、低 2-A、低 VIN、低雜訊、超低壓降電壓穩壓器具有高準確度、低雜訊的良好電源,超低壓降電壓穩壓器具有高準確度的良好電源 TPS7A84 具有高準確度且具有電源良好功能的 3-A、低 VIN、低雜訊、超低壓差電壓穩壓器 TPS7A85 具有高準確度且具有電源良好功能的 4-A、低 VIN、低雜訊、超低壓差電壓穩壓器 TPS7A96 2-A、超低雜訊、超高 PSRR 射頻電壓穩壓器 TPS7A4501-SP 抗輻射、QMLV、1.5-V 至 20-V 輸入 1.5-A 低壓降 (LDO) 穩壓器 TPS7H1111-SP 抗輻射、QMLV 和 QMLP、1.5-A、超低雜訊高 PSRR 低壓降 (LDO) 穩壓器 TPS7H1111-SEP 耐輻射、1.5-A、超低雜訊、超高 PSRR RF LDO 穩壓器
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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