With a 2.4 V to 16 V input voltage range, and a low shutdown current of < 1 uA, the MIC2145 is ideal for portable, low input voltage applications.
Leading-edge cell phones and PDAs are using white LEDs as the solution of choice for backlighting color LCDs. With an integrated 1.5 A switch, the MIC2145 can easily drive four white LEDs for cellular applications, or up to 10 white LEDs for larger panel PDA applications.
A unique peak-current-set feature allows designers to program the peak switch current to the level, which allows maximum efficiency. This feature allows the MIC2145 to be highly efficient in a wide range of applications and load currents.
In notebook PC applications, the MIC2145 efficiently boosts the readily available 3.3 V or 5 V supply to provide the required LCD bias for TFT displays. A soft-start feature reduces power supply noise associated with in-rush current. Separate analog and power grounds further minimize noise.
The MIC2145BMM is available in a MSOP-8 package.