The MIC5219-3.6YMLTR is a low-dropout (LDO) voltage regulator manufactured by Micrel (now Microchip Technology). This LDO is designed to provide a stable and regulated 3.6V output voltage from a higher input voltage. Its key features include low dropout voltage, low quiescent current, and excellent line and load regulation. It is commonly used in battery-powered devices and other applications where efficiency and stability are critical.

Applications

• Battery-powered devices
• Portable electronics
• Post-regulation for switching power supplies
• Microcontroller power supplies
• RF applications

Features

• Low dropout voltage: Operates with a small difference between input and output voltage, maximizing efficiency.
• Low quiescent current: Minimizes power consumption when the regulator is in standby mode.
• Excellent line and load regulation: Maintains a stable output voltage despite variations in input voltage and load current.
• Overcurrent protection: Protects the regulator and the load from damage due to excessive current draw.
• Thermal shutdown: Protects the regulator from overheating under high load conditions.
• Stable with ceramic output capacitors: Provides stable operation with low-ESR ceramic capacitors.

Benefits

• Extended battery life: Low dropout voltage and low quiescent current maximize battery life in portable devices.
• Stable power supply: Excellent line and load regulation ensure a stable and reliable output voltage for sensitive electronic circuits.
• Protection against damage: Overcurrent protection and thermal shutdown protect the regulator and the load from damage.
• Simplified design: Stable with ceramic output capacitors, simplifying circuit design and reducing component count.
• High efficiency: Low dropout voltage minimizes power dissipation, resulting in higher efficiency.

Technical Specifications

The MIC5219-3.6YMLTR provides a fixed output voltage of 3.6V. It has a low dropout voltage, typically around 170mV at 500mA load current. The quiescent current is typically 8μA. The input voltage range is typically 2.5V to 12V. It is packaged in a MLF (Micro LeadFrame) package. It is designed to be stable with output capacitors as small as 1μF. The operating temperature range is typically -40°C to +125°C. Detailed specifications including pinouts, electrical characteristics, and application circuits can be found in the manufacturer's datasheet.

The regulator is designed to withstand standard reflow soldering processes. Proper PCB layout is crucial for achieving optimal performance. Bypass capacitors should be placed as close as possible to the input and output pins. The MIC5219 series is a popular choice for a wide range of applications due to its high performance and reliability.