Texas Instruments TPS7A49 Ultra-Low Noise LDO Linear Regulators

Texas Instruments TPS7A49 Ultra-Low Noise Low-Dropout Linear Regulators are positive, high-voltage, ultra-low noise linear regulators that can source a 150mA load. These devices include a CMOS logic-level-compatible enable pin and capacitor-programmable soft-start function 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 Texas Instruments TPS7A49 is designed using bipolar technology and is ideal for high-accuracy, high-precision instrumentation applications where clean voltage rails are critical to maximizing system performance. This design makes the device an excellent choice to power operational amplifiers, analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and other various high-performance analog circuitry.

Features

  • 3V to 36V input voltage range
  • 12.7µVRMS (20Hz to 20kHz) noise ratings
  • 15.4µVRMS (10Hz to 100kHz)
  • 72dB (120Hz) power-supply ripple rejection
  • ≥52dB (10Hz to 400kHz)
  • 1.194V to 33V adjustable output
  • 150mA output current
  • 260mV at 100mA dropout voltage
  • ≥2.2µF stable with ceramic capacitors
  • CMOS logic-level-compatible enable pin
  • Fixed current-limit and thermal shutdown protection
  • Packages
    • 8-Pin HVSSOP PowerPAD™
    • 3mm × 3mm VSON
  • –40°C to +125°C operating temperature range
Publicado: 2015-07-09 | Actualizado: 2024-05-02