General Description

The MIC2145 is a small size boost switching regulator that can provide over 2.5W of output power. The input voltage range is between 2.4V to 16V, making the device suitable for one-cell Li-Ion and 3- to 4-cell alkaline/NiCad/NiMH applications. The output voltage of the MIC2145 can be adjusted up to 16V.

Features

• 2.4V to 16V input voltage

• Output adjustable to 16V

• Programmable peak current limit

• Soft start

• Up to 450kHz switching frequency

• 0.5µA shutdown current

• 200µA quiescent current

• Capable of 5V/ 500mA output with 3.3V input

• Achieves over 85 efficiency

• Implements low power BOOST, SEPIC, and FLYBACK topologies

• MSOP-8 and 3mm×3mm MLF™-10L

Applications

• Flash LED driver

• LCD bias supply

• White LED driver

• DSL bias supply

• Local 3V to 5V conversion