MIC5319-5.0YML-TR

The MIC5319 is a high performance, 500 mA LDO regulator, with high PSRR and very low noise, with low ground current. Ideal for battery-operated applications, the MIC5319 features 1% accuracy, very low dropout voltage (typically 200 mV @ 500 mA), and low ground current at light load (typically 90 μA). Equipped with a logic-compatible enable pin, the MIC5319 can be set into a zero-off-mode current state, typically drawing only 0.5 μA current when disabled. The MIC5319 is a μCap design operating with very small ceramic output capacitors for stability, thereby reducing required board space and component cost. The MIC5319 is available in fixed-output voltages and adjustable output versions in the compact 2 mm x 2 mm DFN lead-less package or the thin SOT23-5 package.

Applications

• Cellular Phones
• PDAs
• Fiber Optic Modules
• Portable Electronics
• Notebook PCs
• Audio Codec Power Supplies

Key features

• Ultra-Low Dropout Voltage: 200 mV @ 500 mA
• Input Voltage Range: 2.5V to 5.5V
• Output Voltage:
• Adjustable: V_REF = 1.25V
• Fixed: 1.3V, 1.8V, 1.85V, 2.5V, 2.6V, 2.7V, 2.8V, 2.85V, 2.9V, 3.0V, 3.3V
• Stable with Low ESR Ceramic Output Capacitor
• Low Output Noise: 40 μV_RMS (10 Hz to 100 kHz Bandwidth)
• Low Ground Current: 90 μA Typical
• High PSRR, up to 70 dB @ 1 kHz
• Fast Turn-On Time: 40 μs Typical
• High Output Accuracy:
• ±1.0% Initial Accuracy
• ±2.0% Over Temperature
• Thermal-Shutdown Protection
• Current-Limit Protection
• Logic-Controlled Enable Input Pin
• Available Packages:
• 2 mm x 2 mm DFN, 500 mA Continuous
• SOT23-5, 500 mA Peak