2013-10-03  Semiconductor ICs   MPS

MP2155 - High-Efficiency Buck-Boost Converter with integrated 2,2A Switch

For battery-driven applications which are powered by a one-cell Lithium-Ion or multi-cell alkaline battery the MP2155 offers a simple and cost-effective solution with up to 95% efficiency. The MP2155 uses a current mode, 1MHz fixed frequency PWM control for optimal stability and transient response. To ensure the longest battery life MP2155 has an optional pulse skipping mode that reduces switching frequency under light load conditions. For other low noise applications where variable frequency power save mode may cause interference, the logic control input MODE pin forces fixed frequency PWM operation under all load conditions. The MP2155 operates with input voltage from 2V to 5.5V to provide adjustable output voltage from 1.5V to 5V. During Shutdown the load is completely disconnected. MP2155 comes with an Iq of just 80µA and in a small 3x3 QFN-package.

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Interested? Please contact: Thomas Berner


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