Startseite Energiemanagement Linear- und Low-Dropout-Regler (LDO)
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Linear- und Low-Dropout-Regler (LDO)

TPS7A3501

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Rauscharmer, einstellbarer Low-Dropout-Spannungsregler mit Enable, 1 A

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Datenblatt

TPS7A3501

AKTIV
Datenblatt Jetzt bestellen

Produktdetails

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 Rating Catalog Noise (µVrms) 3.8 PSRR at 100 KHz (dB) 40 Iq (typ) (mA) 2.2 Thermal resistance θJA (°C/W) 67 Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Features Enable, Foldback Overcurrent protection 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 Rating Catalog Noise (µVrms) 3.8 PSRR at 100 KHz (dB) 40 Iq (typ) (mA) 2.2 Thermal resistance θJA (°C/W) 67 Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Features Enable, Foldback Overcurrent protection 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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Technische Dokumentation

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Typ Titel Datum
* Data sheet TPS7A3501 High PSRR, Low-Noise, 1-A Power Filter datasheet (Rev. B) PDF | HTML 18 Jul 2014
Application note A Topical Index of TI LDO Application Notes (Rev. F) 27 Jun 2019
Selection guide Low Dropout Regulators Quick Reference Guide (Rev. P) 21 Mär 2018
Technical article What floats your boat? Exploring linear regulators in medical ultrasound PDF | HTML 12 Mai 2017
White paper How to measure LDO noise 24 Jul 2015
User guide TPS7A3501EVM-547 Evaluation Module 24 Mai 2013

Design und Entwicklung

Weitere Bedingungen oder erforderliche Ressourcen enthält gegebenenfalls die Detailseite, die Sie durch Klicken auf einen der unten stehenden Titel erreichen.

Simulationsmodell

TPS7A3501 PSpice Transient Model

SBVM378.ZIP (131 KB) - PSpice Model
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Simulationsmodell

TPS7A3501 TINA-TI Transient Reference Design

SBVM422.ZIP (15 KB) - TINA-TI Reference Design
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Simulationsmodell

TPS7A3501 TINA-TI Transient Spice Model

SBVM421.ZIP (9 KB) - TINA-TI Spice Model
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Referenzdesigns

PMP10600 — Xilinx® Zynq®Leistungslösung der 7000-Serie (XC7Z015), 5 W – Referenzdesign

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
Schaltplan: PDF
Referenzdesigns

PMP10601 — Xilinx® Zynq® 7000 Serie (XC7Z015) Leistungslösung, 8 W – Referenzdesign

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
Schaltplan: PDF
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WSON (DRV) 6 Ultra Librarian
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