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Product details

Parameters

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 (uVrms) 3.8 Iq (Typ) (mA) 2.2 Thermal resistance θJA (°C/W) 67 Load capacitance (Min) (µF) 10 Rating Catalog Regulated outputs (#) 1 Features Enable, Foldback Overcurrent Protection PSRR @ 100 KHz (dB) 40 Dropout voltage (Vdo) (Typ) (mV) 330 Operating temperature range (C) -40 to 125 open-in-new Find other Linear regulators (LDO)

Package | Pins | Size

WSON (DRV) 6 4 mm² 2 x 2 open-in-new Find other Linear regulators (LDO)

Features

  • 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
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Description

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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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 10
Type Title Date
* Datasheet TPS7A3501 High PSRR, Low-Noise, 1-A Power Filter datasheet (Rev. B) Jul. 18, 2014
Application note A Topical Index of TI LDO Application Notes (Rev. F) Jun. 27, 2019
Technical articles LDO basics: capacitor vs. capacitance Aug. 01, 2018
Technical articles LDO Basics: Preventing reverse current Jul. 25, 2018
Technical articles LDO basics: introduction to quiescent current Jun. 20, 2018
Selection guide Low Dropout Regulators Quick Reference Guide (Rev. P) Mar. 21, 2018
Technical articles LDO basics: noise – part 1 Jun. 14, 2017
Selection guide TI Components for Aerospace and Defense Guide (Rev. E) Mar. 22, 2017
White paper How to measure LDO noise Jul. 24, 2015
User guide TPS7A3501EVM-547 Evaluation Module May 24, 2013

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARD Download
20
Description
The Texas Instruments TPS7A3501EVM-547 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the TPS7A3501 Low Noise, High PSRR 1A Active Filter. The EVM circuit is configured to be a reference design for engineering applications requiring current to a dynamic load of up to (...)
Features
  • Low Noise Output: 10μV rms 10Hz to 1MHz
  • Wide-Bandwidth High PSRR: 60dB at 10kHz, 47dB at 1MHz
  • Low VIN to VOUT Voltage Delta: Fixed 300mV @ 0 to 1A
  • ±40mV Overall Accuracy on Voltage Delta
  • Wide VIN range: 1.71V to 5.55V
  • Stable with 10.0μF ceramic output capacitor
  • Current Limit and Thermal Shutdown for Fault (...)

Design tools & simulation

SIMULATION MODEL Download
SBVM378.ZIP (131 KB) - PSpice Model
SIMULATION MODEL Download
SBVM421.ZIP (9 KB) - TINA-TI Spice Model
SIMULATION MODEL Download
SBVM422.ZIP (15 KB) - TINA-TI Reference Design

Reference designs

REFERENCE DESIGNS Download
Xilinx® Zynq® 7000 series (XC7Z015) Power Solution, 8W - Reference Design
PMP10601 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 (...)
document-generic Schematic
REFERENCE DESIGNS Download
Xilinx® Zynq®7000 series (XC7Z015) Power Solution, 5W - Reference Design
PMP10600 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 down (...)
document-generic Schematic
REFERENCE DESIGNS Download
Xilinx Zynq 7000 Series (XC7Z045) 20W Reference Design
PMP10613 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 (...)
document-generic Schematic

CAD/CAE symbols

Package Pins Download
WSON (DRV) 6 View options

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