Description
MD57E18WB6 MD high accuracy, low noise, high speed, high PSRR, low dropout CMOS Linear regulator 2.2-5.5V 300mA CMOS With ON/OFF Switch DFN1x1-4L Package RoHS
The MD57XXseries is a low-noise LDO that can supply up to 300 mA output current. Designedto meet the requirements of RF and analog circuits, the MD57XXseries device provides low noise, high PSRR, low quiescent current, and low line or load transient response figures. Using new innovative design techniques, the MD57XXseries offers ultra-lownoise performance without a noise bypass capacitor and the ability for remote output capacitor placement.response figures with a 1-uF input anda 1-uF output ceramic capacitor
Input Voltage Range: 2.2 V to 5.5 V
Output Voltage Range: 1.2 V to 4.5 V
StableWith 1-uF Ceramic Input andOutput Capacitors
No Noise Bypass Capacitor Required
Remote Output Capacitor Placement
Current Limiter and Over TemperatureProtection
-40C to 125C Operating JunctionTemperature
Low Output Voltage Noise:20uVRMS
High PSRR: 90dB@1kHz
Output Voltage Tolerance: 2%
Low quiescent Current: 20uA
Low Dropout Voltage: 120mV@300m
The WL2836D has the fold-back maximum output current which depends on the output voltage. So the current limit functions both as a short circuit protection and as an output current limiter.
Manufacturer:Electronic Components
Datasheet:Mingda-Microelectronics-MD57E47QC3.pdf
