Vin 3V to 36V, 150mA, Ultra-Low Noise, High PSRR, Low-Dropout Linear Regulator - TPS7A49

TPS7A49 (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$)
TPS7A49
0.15    
Adjustable Output    
3    
36    
1.2    
33    
0.06    
260    
2.5    
15    
54    
Ceramic    
Enable
Fast Transient Response
Overcurrent Protection
Soft Start
Thermal Shutdown    
Catalog    
-40 to 125    
8MSOP-PowerPAD
8SON    
1.10 | 1ku    
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WEBENCH® TPS7A49
    Min   Max   Range  
  Vin V 3.0 to 36.0V  
  Vout V 1.19 to 33.0V  
  Iout A ≤ 0.15A  
  Ambient Temp °C -40 to 125°C  
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