0.6A, Synchronous, Step-Down Converter with 11µA IQ in Ultra-Small 1x1.5mm QFN

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The MP21600 is a monolithic, step-down, switch-mode converter with built-in, internal power MOSFETs. The MP21600 achieves 0.6A of continuous output current from a 2.3V to 5.5V input voltage range with excellent load and line regulation. The output voltage can be regulated as low as 0.6V.

The constant-on-time (COT) control scheme provides fast transient response and eases loop stabilization. Fault protections include cycle-by-cycle current limiting and thermal shutdown.

The MP21600 is ideal for a wide range of applications, including high-performance DSPs, wireless power, portable and mobile devices, and other low-power systems.

The MP21600 requires a minimal number of readily available, standard, external components is available in an ultra-small QFN-6 (1.0mmx1.5mm) package.

Symmetry Electronics is an authorized Monolithic Power Systems distributor.


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Low IQ: 11A
2.4MHz Switching Frequency
Enable (EN) Pin for Power Sequencing
Wide 2.3V to 5.5V Operating Input Range
Output Adjustable from 0.6V
Up to 0.6A Output Current
120m? and 80m? Internal Power MOSFET Switches
Output Discharge
100% Duty Cycle
Short-Circuit Protection (SCP) with Hiccup Mode
Stable with Low ESR Output Ceramic Capacitors
Available in a QFN-6 (1.0mmx1.5mm) Package