MPS 6V Input, 2A Module Synchronous Step-Down Converter with Integrated Inductor

The MPM3820 is a monolithic step-down switch mode converter with built-in internal power MOSFETs and inductor. The DC-DC module has a small surface mount 3mm x 5mm x 1.6mm QFN package. It achieves 2A continuous output current from a 2.7V to 6V input voltage with excellent load and line regulation. The MPM3820 is ideal for powering portable equipment that runs from a single cell Lithium-Ion (Li+) Battery. The output voltage can be regulated as low as 0.6V. Only input, output capacitors and FB resistors are needed to complete the design.

The Constant-On-time (COT) control scheme provides fast transient response, high light­load efficiency and easy loop stabilization.

Fault condition protection includes cycle­by­cycle current limit and thermal shutdown. 

The MPM3820 requires a minimum number of readily available standard external components and is available in an ultra-small QFN20 (3mmx5mm) package.

Features

• Wide 2.7V to 6V Operating Input Range
• Fixed and Adjustable output from 0.6V
• 3.0mm x 5.0mm x 1.6mm QFN Package
• Total Solution Size 8.5mm x 4.5 mm
• Low Radiated Emissions (EMI) Complies with EN55022 Class B Standard
• Up to 2A Continuous Output Current
• 100% Duty Cycle in Dropout
• Ultra Low IQ: 40μA
• EN and Power Good for Power Sequencing
• Cycle-by-Cycle Over-Current Protection
• Short Circuit Protection with Hiccup Mode
• Adjustable Output Only Needs 4 External Components - 2 Ceramic Capacitors and FB Divider Resistors
• Fixed Output Only Needs Input and Output Capacitors