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 (36 V), ultralow-noise (15.4 µVRMS, 72-dB PSRR) linear regulators that can source 150-mA load.

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 available features 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 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: 3 V to 36 V
  • Noise:
    • 12.7 µVRMS (20 Hz to 20 kHz)
    • 15.4 µVRMS (10 Hz to 100 kHz)
  • Power-Supply Ripple Rejection:
    • 72 dB (120 Hz)
    • ≥ 52 dB (10 Hz to 400 kHz)
  • Adjustable Output: 1.194 V to 33 V
  • Output Current: 150 mA
  • Dropout Voltage: 260 mV at 100 mA
  • Stable with Ceramic Capacitors ≥ 2.2 µF
  • CMOS Logic-Level-Compatible Enable Pin
  • Integrated Fixed Current-Limit and Thermal
    Shutdown Protection
  • Available in High Thermal Performance
    8-Pin MSOP PowerPAD™ Package
  • Operating Temperature 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 Instrumentation
    • Base Stations and Telecom Infrastructure

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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 TPS7A4700 TPS7A4701
0.15     0.2     1     1     1    
Adjustable Output     Adjustable Output
Negative Output    
Adjustable Output
Negative Output    
Programmable Output     Adjustable Output
Programmable Output    
3     -36     -36     3     3    
36     -3     -3     36     36    
1.2     -33     -33     1.4     1.4    
33     -1.2     -1.2     20.5     34    
0.06     0.05     0.21     0.58     0.58    
260     216     290     216     307    
2.5     2.5     2.5     2.5     2.5    
15     15     16     4     4    
54     55     64     68     60    
Ceramic     Ceramic     Ceramic     Ceramic     Ceramic    
Enable
Overcurrent Protection
Soft Start
Thermal Shutdown
Fast Transient Response    
Enable
Overcurrent Protection
Soft Start
Thermal Shutdown
Fast Transient Response    
Enable
Overcurrent Protection
Soft Start
Thermal Shutdown    
Enable
Fast Transient Response
Overcurrent Protection
Soft Start
Thermal Shutdown    
Enable
Fast Transient Response
Overcurrent Protection
Soft Start
Thermal Shutdown    
Catalog     Catalog     Catalog     Catalog     Catalog    
-40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 125    
8MSOP-PowerPAD
8SON    
8MSOP-PowerPAD
8SON    
20VQFN
7TO-220    
20VQFN     20VQFN    
1.10 | 1ku     1.50 | 1ku     2.70 | 1ku     2.10 | 1ku     2.10 | 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    -40 – 125°C  
Footprint BOM Cost Efficiency
 
   
 
 
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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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