Vin 3V to 36V, 150mA, Ultra-Low Noise, High PSRR, Low-Dropout Linear Regulator - TPS7A4901

TPS7A4901 (ACTIVE)

Vin 3V to 36V, 150mA, Ultra-Low Noise, High PSRR, Low-Dropout Linear Regulator

Description

The TPS7A49xx series of devices are positive, high-voltage (+36V), ultralow noise (15.4µVRMS, 72dB PSRR) linear regulators capable of sourcing a load of 150mA.

These linear regulators include a CMOS logic-level-compatible enable pin and capacitor-programmable soft-start function that allows for customized power-management schemes. Other features available include built-in current limit and thermal shutdown protection to safeguard the device and system during fault conditions.

The TPS7A49xx family is designed using bipolar technology, and is ideal for high-accuracy, high-precision instrumentation applications where clean voltage rails are critical to maximize system performance. This design makes it an excellent choice to power operational amplifiers, analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and other high-performance analog circuitry.

In addition, the TPS7A49xx family of linear regulators is suitable for post dc/dc converter regulation. By filtering out the output voltage ripple inherent to dc/dc switching conversion, maximum system performance is provided in sensitive instrumentation, test and measurement, audio, and RF applications.

For applications where both positive and negative high-performance rails are required, consider TI’s TPS7A30xx family of negative high-voltage, ultralow-noise linear regulators as well.

Features

  • Input Voltage Range: +3V to +36V
  • Noise:
    • 12.7µVRMS (20Hz to 20kHz)
    • 15.4µVRMS (10Hz to 100kHz)
  • Power-Supply Ripple Rejection:
    • 72dB (120Hz)
    • ≥ 52dB (10Hz to 400kHz)
  • Adjustable Output: +1.194V to +33V
  • Output Current: 150mA
  • Dropout Voltage: 260mV at 100mA
  • Stable with Ceramic Capacitors ≥ 2.2µF
  • CMOS Logic-Level-Compatible Enable Pin
  • Built-In, Fixed, Current-Limit and Thermal Shutdown Protection
  • Available in High Thermal Performance MSOP-8 PowerPAD™ Package
  • Operating Tempature Range: –40°C to +125°C
  • APPLICATIONS
    • Supply Rails for Op Amps, DACs, ADCs, and Other High-Precision Analog Circuitry
    • Audio
    • Post DC/DC Converter Regulation and Ripple Filtering
    • Test and Measurement
    • RX, TX, and PA Circuitry
    • Industrial Instrumention
    • Base Stations and Telecom Infrastrucure

    PowerPAD is a trademark of Texas Instruments.
    All other trademarks are the property of their respective owners.

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    Parametrics Compare all products in Single Channel LDO

     
    Iout (Max) (A)
    Output Options
    Vin (Min) (V)
    Vin (Max) (V)
    Vout (Min) (V)
    Vout (Max) (V)
    Iq (Typ) (mA)
    Vdo (Typ) (mV)
    Accuracy (%)
    Noise (uVrms)
    PSRR @ 100KHz (dB)
    Output Capacitor Type
    Additional Features
    Rating
    Operating Temperature Range (C)
    Pin/Package
    Approx. Price (US$)
    TPS7A4901 TPS7A3001 TPS7A3301
    0.15     0.2     1    
    Adjustable Output     Adjustable Output
    Negative Output    
    Adjustable Output
    Negative Output    
    3     -36     -36    
    36     -3     -3    
    1.2     -33     -33    
    33     -1.2     -1.2    
    0.06     0.05     0.21    
    260     216     290    
    2.5     2.5     2.5    
    15     15     16    
    54     55     64    
    Ceramic     Ceramic     Ceramic    
    Enable
    Overcurrent Protection
    Soft Start
    Thermal Shutdown    
      Enable
    Overcurrent Protection
    Soft Start
    Thermal Shutdown    
    Catalog     Catalog     Catalog    
    -40 to 125     -40 to 125     -40 to 125    
    8MSOP-PowerPAD     8MSOP-PowerPAD     20VQFN
    7TO-220    
    1.10 | 1ku     1.50 | 1ku     2.70 | 1ku    
    WEBENCH® TPS7A4901
        Min   Max   Range  
      Vin V    3.00 – 36.00V  
      Vout V    1.19 – 33.00V  
      Iout A    ≤ 0.15A  
      Ambient Temp °C    ≤ 125°C  
    Footprint BOM Cost Efficiency
     
     
     
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    What are WEBENCH® tools?

    Companion parts

    Part # Name Product Family Comments
    DAC8871   16-Bit Single Channel, Serial Interface, +/-18V (High Voltage Bipolar) Output DAC   DIGITAL TO ANALOG CONVERTER - PRECISION DAC (=<10MSPS)   See Literature sbvs125b  Positive and Negative LDOs for creating clean power rails HV switcher for creating bi-polar rails from positive Vin  
    DAC7731   16-Bit, Single Channel, Digital-to-Analog Converter W/ Internal +10V Reference and Serial I/F   DIGITAL TO ANALOG CONVERTER - PRECISION DAC (=<10MSPS)   See Literature sbvs125b  Positive and Negative LDOs for creating clean power rails HV switcher for creating bi-polar rails from positive Vin  
    DAC7741   16-Bit, Single Channel, Digital-to-Analog Converter W/Internal +10V Reference and Parallel I/F   DIGITAL TO ANALOG CONVERTER - PRECISION DAC (=<10MSPS)   See Literature sbvs125b  Positive and Negative LDOs for creating clean power rails HV switcher for creating bi-polar rails from positive Vin  
    OPA627   Precision High-Speed Difet(R) Operational Amplifiers   OPERATIONAL AMPLIFIER - PRECISION AMPLIFIER   See Literature sbvs125b  Positive and Negative LDOs for creating clean power rails HV switcher for creating bi-polar rails from positive Vin  
    OPA211   1.1nV/rtHz Noise, Low Power, Precision Operational Amplifier in Tiny DFN-8 Package   OPERATIONAL AMPLIFIER - PRECISION AMPLIFIER   See Literature sbvs125b  Positive and Negative LDOs for creating clean power rails HV switcher for creating bi-polar rails from positive Vin  
    OPA827   Low-Noise, High-Precision, JFET-Input Operational Amplifier   OPERATIONAL AMPLIFIER - PRECISION AMPLIFIER   See Literature sbvs125b  Positive and Negative LDOs for creating clean power rails HV switcher for creating bi-polar rails from positive Vin  
    ADS8556   630kSPS, 6-Channels, Simultaneous Sampling Analog-to-Digital Converter   ANALOG TO DIGITAL CONVERTER - PRECISION ADC (<=10MSPS)   See Literature sbvs125b  Positive and Negative LDOs for creating clean power rails HV switcher for creating bi-polar rails from positive Vin  
    TPS54260   3.5V to 60V Input, 2.5A Step-Down Converter with Eco-Mode   CONVERTER (INTEGRATED SWITCH) - STEP-DOWN (BUCK) CONVERTER   See Literature sbvs125b  Positive and Negative LDOs for creating clean power rails HV switcher for creating bi-polar rails from positive Vin  
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