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線性與低壓差 (LDO) 穩壓器

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

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產品規格表

TPS7A3501

現行
產品規格表 立即訂購

產品詳細資料

Output options Adjustable Output Iout (max) (A) 1 Vin (max) (V) 5 Vin (min) (V) 1.7 Vout (max) (V) 4.5 Vout (min) (V) 1.2 Noise (µVrms) 3.8 Iq (typ) (mA) 2.2 Thermal resistance θJA (°C/W) 67 Rating Catalog Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Features Enable, Foldback Overcurrent protection PSRR at 100 KHz (dB) 40 Dropout voltage (Vdo) (typ) (mV) 330 Operating temperature range (°C) -40 to 125
Output options Adjustable Output Iout (max) (A) 1 Vin (max) (V) 5 Vin (min) (V) 1.7 Vout (max) (V) 4.5 Vout (min) (V) 1.2 Noise (µVrms) 3.8 Iq (typ) (mA) 2.2 Thermal resistance θJA (°C/W) 67 Rating Catalog Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Features Enable, Foldback Overcurrent protection PSRR at 100 KHz (dB) 40 Dropout voltage (Vdo) (typ) (mV) 330 Operating temperature range (°C) -40 to 125
WSON (DRV) 6 4 mm² 2 x 2
  • 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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類型 標題 日期
* Data sheet TPS7A3501 High PSRR, Low-Noise, 1-A Power Filter datasheet (Rev. B) PDF | HTML 2014年 7月 18日
Application note A Topical Index of TI LDO Application Notes (Rev. F) 2019年 6月 27日
Selection guide Low Dropout Regulators Quick Reference Guide (Rev. P) 2018年 3月 21日
Technical article What floats your boat? Exploring linear regulators in medical ultrasound PDF | HTML 2017年 5月 12日
White paper How to measure LDO noise 2015年 7月 24日
User guide TPS7A3501EVM-547 Evaluation Module 2013年 5月 24日

設計與開發

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模擬型號

TPS7A3501 PSpice Transient Model

SBVM378.ZIP (131 KB) - PSpice Model
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模擬型號

TPS7A3501 TINA-TI Transient Reference Design

SBVM422.ZIP (15 KB) - TINA-TI Reference Design
下載
模擬型號

TPS7A3501 TINA-TI Transient Spice Model

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

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

The PMP10600.1 reference design provides all the power supply rails necessary to power Xilinx® Zynq® 7000 series (XC7Z015) FPGA.   This design uses several LMZ3 series modules, LDOs, and a DDR termination regulator.  It also features one LM3880 for power up and power (...)
Test report: PDF
電路圖: PDF
參考設計

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

The PMP10601 reference design provides all the power supply rails necessary to power Xilinx® Zynq® 7000 series (XC7Z015)  FPGA.   This design uses several LMZ3 series modules, LDOs, and a DDR termination regulator to provide all the necessary rails to power the FPGA.  It also (...)
Test report: PDF
電路圖: PDF
參考設計

PMP10613 — Xilinx Zynq 7000 系列 (XC7Z045) 20W 參考設計

The PMP10613 reference design provides all the power supply rails necessary to power Xilinx® Zynq® 7000 series (XC7Z045)  FPGA.   This design uses several LMZ3 series modules, LDOs, and a DDR termination regulator to provide all the necessary rails to power the FPGA.  It (...)
Test report: PDF
電路圖: PDF
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