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 DatasheetDescription
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 a 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
品描述電路圖/MST9193-1f94151a7e3e46979cc54240dbc1bf9f.png)