The Monolithic Power MP2148 is a monolithic, step-down, switch mode converter with built-in internal power MOSFETs. The MP2148 is capable of 1A continuous output current from a 2.3V-to-5.5V input voltage with excellent load and line regulation. All of this is achieved at a mere 11uA of quiescent current. The output voltage can be regulated to as low as 0.6V. The Constant-On-Time control scheme provides fast transient response and eases loop stabilization. Fault protections include cycle-by-cycle current limiting and thermal shutdown. The MP2148 is available in an ultra-small QFN- 6 (1.0mmx1.5mm) package and requires a minimal number of readily available standard external components.

The smPWR-MP2148-ADJ provides an easy to use, low-cost, very small breakout board for the MP2148. All pins are all mapped to standard 2.54mm/0.1” headers. This allows for use in a standard bread-board or to be ‘wired’ into an application. The header-header spacing is 7.62mm (300mil).

All SMSTRS smMEM, smSENSR, smCOM, smBAT, smPWR products are compatible with the Sensor Maestros Wireless Sensor Platforms that provide Rapid prototyping for Sensor and BTLE applications. The smPWR-MP2148-ADJ can be plugged into ANY of the smPWR sockets in the smRF-WB and smWSP-ARD rapid prototyping sensor plugin boards.

Monolithic Power MP2148 3.0/1.8V Selectable Micro Sized Evaluation Board - Ultra-Low Iq 11uA - 2.2MHz Switching Frequency - Up to 1A Output Current - 120mΩ and 80mΩ Internal Power MOSFET Switches - SMSTRS Wireless Platform Ready - Ultra-small QFN-6(1.0×1.5mm) - 100% Duty Cycle - Micro-Sized Eval Board(7.8x10mm) - 2.54mm(0.1”) headers on 7.62mm(0.3”) spacing - Selectable 3.0V or 1.8V output from 0Ω Resistor Selector