The MIC2287 is a high-efficiency, synchronous boost regulator from Micrel (now Microchip Technology). It is designed to provide a regulated output voltage from a lower input voltage, making it suitable for battery-powered and portable applications.

Applications

• Portable devices
• Battery-powered equipment
• LED backlighting
• LCD bias supplies
• Handheld instruments

Features

• Synchronous Boost Regulator: Provides high efficiency.
• High Switching Frequency: Allows for small external components.
• Internal Compensation: Simplifies circuit design.
• Soft-Start: Limits inrush current during startup.
• Over-Voltage Protection (OVP): Protects the output from over-voltage conditions.
• Under-Voltage Lockout (UVLO): Prevents operation with insufficient input voltage.

Benefits

• High Efficiency: Extends battery life in portable applications.
• Compact Solution: Small external components minimize board space.
• Simplified Design: Internal compensation reduces design complexity.
• Robust Protection: OVP and UVLO ensure reliable operation.

Additional Details

The MIC2287 typically operates from an input voltage range of 2.5V to 5.5V and can generate output voltages up to 40V. The switching frequency is typically above 1 MHz. The device includes an enable pin for shutdown control. Detailed specifications, including efficiency curves, component selection guidelines, and thermal characteristics, can be found in the Microchip Technology (formerly Micrel) datasheet for the MIC2287.