Low-Noise and Low-Dropout Linear Post Regulators

Low-noise and low-dropout linear post regulators TLS203B0 and TLS205B0 are capable of supplying an output current of 300 and 500 mA.
 

The ideal choice for battery-powered systems, these regulators have a low quiescent current of 30 μA (IQ = 0 mA).

Other highlights include low output noise. By adding an external 10 nF bypass capacitor, output noise values down to 24 µVRMS and 30 µVRMS depending on the versions can be reached.

TLS203B0 and TLS205B0 linear post regulators are stable with output capacitors of 3.3 μF. Small ceramic capacitors can be used without the series resistance required by many other regulators

Key benefits

  • Cost-optimized ceramic output capacitance ==> 3.3 µF
  • Suitable for cranking with 2.3 V input
  • Power saving with enable feature

Features

  • Output voltage: ADJ, 3.3 V and 5 V
  • Output current: 300 mA and 500 mA
  • Low current consumption: 30 μA (IQ = 0 mA)
  • Drop voltage typ.: 270 mV @ 300 mA and 320 mV @ 500 mA
 
 
Fonte - Infineon Technologies AG
 
13 de abril de 2015