TCM851 Datasheet (TelCom Semiconductor) - REGULATED GaAs FET BIAS SUPPLY

TCM851, REGULATED GaAs FET BIAS SUPPLY

The TCM850/1/2/3 combines an inverting charge pump and a low noise linear regulator in a single small outline package.

They are ideal for biasing GaAS FETs in cellular telephone transmitter power amplifiers All four devices accept a range of input voltages from 4.5V to 10.0V and have * 5mA o

TCM851 Features

* s s s Fixed

* 4.1V or Adjustable

* 0.5V to

* 9V Output at 5mA 4.5V to 10V Input Voltage Range Low Output Voltage Ripple TCM850-852 2mVp-p TCM853 1mVp-p 100kHz Charge Pump Switching Frequency Optional External Synchronizing Clock Input (TCM852) Logic Level Shutdown Mode 0.5