Micrel, Inc. LED Drivers MIC2287-15YML

The MIC2287-15YML is a pulse width modulated (PWM) boost-switching regulator designed for constant-current white LED driver applications. It operates at a frequency of 1.2MHz, allowing for compact external component sizes and reduced noise and input ripple. This driver can output a maximum voltage of 15V and supports a switch current of over 500mA, enabling it to drive multiple white LEDs in series efficiently. The device features a low feedback voltage of 95mV, which minimizes power dissipation and current draw from the battery. It includes three levels of overvoltage protection (OVP) options at 15V, 24V, and 34V, allowing for flexibility in component selection based on application requirements. The MIC2287-15YML is available in a low-profile 2mm x 2mm MLF,Ñ¢ package and has a wide junction temperature range of -40¬8C to +125¬8C, making it suitable for various operating environments. This LED driver is ideal for applications such as backlighting in cell phones, PDAs, GPS systems, digital cameras, and LED flashlights. It also features low shutdown current and over-temperature protection, enhancing its reliability in diverse applications.