Products

The MST9193 family of low-dropout(LDO), low-power Linear regulators offers very high power supply rejection ratio (PSRR) while maintaining very low 50uA ground current,suitable for RF applications.

Application sample Datasheet

Description

The MST9193 family of low-dropout(LDO), low-power Linear regulators offers very high power supply rejection ratio  (PSRR)  while

maintaining very low 50uA ground current,suitable for RF applications.The family uses an advanced CMOS process and PMOSFET

pass device to achieve fast start-up,very low noise,excellent transient response,and excellent PSRR performance.

The MST9193 is stable with a 1.0uF ceramic output capacitor,  and uses a precision voltage reference and feedback loop to  achieve

a worst-case of 2% over all load, line, process, and temperature variations.

It is fully specified from TJ = -40°C to +150°C and is offered in a small  DFN4 package, which is ideal  for small from factor  portable

equipment suchwireless handsets and PDAs.

Features

■ Wide input voltage range: 2.0V to 6.0V

■ Up to 500mA load current

■ Output voltage options available on request

■ Very low IQ: 50uA   

■ Very High PSRR: 82dB at 1kHz

■ Ultra low noise: 45uVRMS at 1.2V output

■ Ultra-Fast start-up time: 25us

■ Excellent load/line transient response

■ Line regulation: 0.03% typical

■ Standard fixed output voltage options: 1.2V, 1.5V, 1.6V, 1.8V, 2.5V, 2.8V, 3.0V, and 3.3V,etc

■ Ultra low dropout: 250mV at 300mA load@VOUT=2.8V

Typical Application