MIC5321中文资料Dual High Performance 150mA uCap ULDO数据手册Microchip规格书

描述 Description

The MIC5321 is a tiny Dual Ultra Low-Dropout (ULDO) linear regulator ideally suited for those applications that require high PSRR because it provides a bypass pin for those noise sensitive portable electronics. The MIC5321 is a µCap design which enables operation with very small ceramic output capacitors for stability, thereby reducing required board space and component cost. The combination of extremely low-dropout voltage, very high power supply rejection, very low output noise, and exceptional thermal package characteristics makes it ideal for powering RF applications, cellular phone camera modules, imaging sensors for digital still cameras, PDAs, MP3 players, and webcam applications. The MIC5321 ULDO is available in the thin SOT-23-6 lead package. Additional voltage options are available.

特性 Features

• 2.3V to 5.5V input voltage range
• Ultra-low dropout voltage ULDO: 35mV @ 150mA
• Low cost TSOT-23-6 package
• Bypass pin for improved noise performance
• High PSRR: >75dB on each LDO
• Ultra low noise output: > 30µVrms
• Dual 150mA outputs
• µCap stable with 1µF ceramic capacitor
• Low quiescent current: 150µA per output
• Fast turn-on time: 45µs
• Thermal shutdown protection
• Current limit protection