Microchip | MIC2145YMM

The MIC2145YMM is a small size boost switching regulator that can provide over 2.5 W of output power. The input voltage range is between 2.4 V to 16 V, 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 16 V.

The MIC2145 is well suited for portable, space-sensitive applications. Its typical 450 kHz operation allows small surface mount external components to be used. The MIC2145 has a low quiescent current of 200 µA, and a typical shutdown current of 0.5 µA. The MIC2145 is capable of high efficiencies in a small board area.

Features:

• 2.4 V to 16 V input voltage
• Output adjustable to 16 V
• Programmable peak current limit
• Soft start
• Up to 450 kHz switching frequency
• 0.5 µA shutdown current
• 200 µA quiescent current
• Capable of 5 V/ 500 mA output with 3.3 V input
• Achieves over 85% efficiency
• Implements low power BOOST, SEPIC, and FLYBACK topologies
• MSOP-8 and 3 mm x 3 mm MLF™-10L

Applications:

• Flash LED driver
• LCD bias supply
• White LED driver
• DSL bias supply
• Local 3 V to 5 V conversion