TPS7A3501

現行

具啟用功能的 1-A 低雜訊可調式超低壓降電壓穩壓器

產品詳細資料

Rating Catalog Vin (max) (V) 5 Vin (min) (V) 1.7 Iout (max) (A) 1 Output options Adjustable Output Vout (max) (V) 4.5 Vout (min) (V) 1.2 Noise (µVrms) 3.8 PSRR at 100 KHz (dB) 40 Iq (typ) (mA) 2.2 Features Enable, Foldback Overcurrent protection Thermal resistance θJA (°C/W) 67 Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Dropout voltage (Vdo) (typ) (mV) 330 Operating temperature range (°C) -40 to 125
Rating Catalog Vin (max) (V) 5 Vin (min) (V) 1.7 Iout (max) (A) 1 Output options Adjustable Output Vout (max) (V) 4.5 Vout (min) (V) 1.2 Noise (µVrms) 3.8 PSRR at 100 KHz (dB) 40 Iq (typ) (mA) 2.2 Features Enable, Foldback Overcurrent protection Thermal resistance θJA (°C/W) 67 Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Dropout voltage (Vdo) (typ) (mV) 330 Operating temperature range (°C) -40 to 125
WSON (DRV) 6 4 mm² (2 mm × 2 mm)
  • Regulates Input-to-Output Voltage:
    • User-Programmable Input-to-Output Voltage
      Regulation Range:
      200 mV to 500 mV
  • Power-Supply Rejection Ratio:
    • 42 dB at 1 MHz
    • ≥ 32 dB (360 kHz to 3.9 MHz)
  • Low-Noise Output:
    • 3.8 µVRMS (10 Hz to 100 kHz)
  • Output Current: Up to 1 A
  • Output Voltage Range: 1.21 V to 4.5 V
  • Excellent Load Transient Response
  • Stable With Ceramic Capacitors as Low as
    10 µF
  • Current Limit and Thermal Shutdown for
    Fault Protection
  • Available in a Low Thermal Resistance Package:
    2-mm × 2-mm WSON-6
  • Operating Temperature Range:
    –40°C to 125°C
  • Regulates Input-to-Output Voltage:
    • User-Programmable Input-to-Output Voltage
      Regulation Range:
      200 mV to 500 mV
  • Power-Supply Rejection Ratio:
    • 42 dB at 1 MHz
    • ≥ 32 dB (360 kHz to 3.9 MHz)
  • Low-Noise Output:
    • 3.8 µVRMS (10 Hz to 100 kHz)
  • Output Current: Up to 1 A
  • Output Voltage Range: 1.21 V to 4.5 V
  • Excellent Load Transient Response
  • Stable With Ceramic Capacitors as Low as
    10 µF
  • Current Limit and Thermal Shutdown for
    Fault Protection
  • Available in a Low Thermal Resistance Package:
    2-mm × 2-mm WSON-6
  • Operating Temperature Range:
    –40°C to 125°C

The TPS7A3501 is a positive voltage, low-noise
(3.8-µVRMS) power filter capable of sourcing a 1-A load suitable for quiet supply solutions. Power filters, such as the TPS7A3501, provide voltage regulation across the input and output terminals with high efficiency (low insertion loss), and power-supply rejection. The device is ideally suited as a noise filter for 3.3-V, 2.5-V, and 1.8-V supplies at up to 1 A.

The input-to-output voltage regulation is also user-programmable, from 200 mV to 500 mV, with a single external resistor. If no resistor is used, the TPS7A3501 provides 330 mV of input-to-output voltage regulation. The device is stable with 10-µF input and output ceramic capacitors and a 10-nF noise-reduction ceramic capacitor.

The TPS7A3501 is fully specified over a wide temperature of –40°C to 125°C. The device is offered in a low thermal resistance, 2-mm × 2-mm, WSON-6 package. Unlike passive filters, the TPS7A3501 provides thermal and current protection for itself and surrounding circuitry.

The TPS7A3501 is a positive voltage, low-noise
(3.8-µVRMS) power filter capable of sourcing a 1-A load suitable for quiet supply solutions. Power filters, such as the TPS7A3501, provide voltage regulation across the input and output terminals with high efficiency (low insertion loss), and power-supply rejection. The device is ideally suited as a noise filter for 3.3-V, 2.5-V, and 1.8-V supplies at up to 1 A.

The input-to-output voltage regulation is also user-programmable, from 200 mV to 500 mV, with a single external resistor. If no resistor is used, the TPS7A3501 provides 330 mV of input-to-output voltage regulation. The device is stable with 10-µF input and output ceramic capacitors and a 10-nF noise-reduction ceramic capacitor.

The TPS7A3501 is fully specified over a wide temperature of –40°C to 125°C. The device is offered in a low thermal resistance, 2-mm × 2-mm, WSON-6 package. Unlike passive filters, the TPS7A3501 provides thermal and current protection for itself and surrounding circuitry.

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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 TPS7A3501 High PSRR, Low-Noise, 1-A Power Filter datasheet (Rev. B) PDF | HTML 2014/7/18
應用說明 A Topical Index of TI LDO Application Notes (Rev. F) 2019/6/27
選擇指南 Low Dropout Regulators Quick Reference Guide (Rev. P) 2018/3/21
技術文章 What floats your boat? Exploring linear regulators in medical ultrasound PDF | HTML 2017/5/12
白皮書 How to measure LDO noise 2015/7/24
使用指南 TPS7A3501EVM-547 Evaluation Module 2013/5/24

設計與開發

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模擬型號

TPS7A3501 PSpice Transient Model

SBVM378.ZIP (131 KB) - PSpice 模型
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模擬型號

TPS7A3501 TINA-TI Transient Reference Design

SBVM422.ZIP (15 KB) - TINA-TI 參考設計
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模擬型號

TPS7A3501 TINA-TI Transient Spice Model

SBVM421.ZIP (9 KB) - TINA-TI Spice 模型
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參考設計

PMP10600 — Xilinx® Zynq®7000 系列 (XC7Z015) 電源解決方案、5W - 參考設計

PMP10600.1 參考設計提供為 Xilinx® Zynq® 7000 系列 (XC7Z015) FPGA 供電所需的所有電源軌。   此設計使用數個 LMZ3 系列模組、LDO 和 DDR 終端穩壓器。  此外也具備一個 LM3880,可進行開機和關機排序。  此設計使用 12V 輸入。

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參考設計

PMP10601 — Xilinx® Zynq® 7000 系列 (XC7Z015) 電源解決方案、8W - 參考設計

PMP10601 參考設計提供為 Xilinx® Zynq® 7000 系列 (XC7Z015) FPGA 供電所需的所有電源軌。   此設計使用數個 LMZ3 系列模組、LDO 和 DDR 終端穩壓器,提供為 FPGA 供電所需的所有電源軌。  此外也具備一個 LM3880,可進行開機和關機排序。  此設計使用 12V 輸入。

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封裝 針腳 CAD 符號、佔位空間與 3D 模型
WSON (DRV) 6 Ultra Librarian

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