MICROCHIP MIC5318-3.3YMT-TR

The MIC5318 is a high performance, single output ultra-low dropout regulator, offering low total output noise in an ultra-small UDFN package. The MIC5318 is capable of sourcing 300 mA output current and offers high PSRR and low output noise, making it an ideal solution for RF applications.

Ideal for battery operated applications, the MIC5318 offers 2% initial accuracy, extremely low dropout voltage (110 mV @ 300 mA), and low ground current (typically 85 μA total). The MIC5318 can also be put into a “zero” off-mode current state, drawing no current when disabled.

The MIC5318 is available in the 1.6 mm × 1.6 mm UDFN package, occupying only 2.56 mm² of PCB area, fully a 36% reduction in board area when compared to SC-70 and 2 mm × 2 mm UDFN packages.

The MIC5318 has an operating junction temperature range of -40℃ to +125℃ and is available in fixed and adjustable output voltages in lead-free (RoHS compliant) UDFN and Thin SOT23-5 packages.

• Ultra-Low Dropout Voltage 110 mV @ 300 mA
• Input Voltage Range: 2.3V to 6.0V
• 300 mA Guaranteed Output Current
• Stable with Ceramic Output Capacitors
• Ultra-Low Output Noise: 30 μv RMS
• Low Quiescent Current: 85 μA Total
• High PSRR > 70 dB @ 1 kHz
• Less than 35 µs Turn-On Time
• High Output Accuracy - ±2% Initial Accuracy - ±3% over Temperature
• Thermal Shutdown and Current-Limit Protection
• Tiny 6-lead 1.6 mm×1.6 mm UDFN package
• Thin SOT23-5 Package

• Mobile Phones
• PDAs
• GPS Receivers
• Portable Electronics
• Digital Still and Video Cameras