Monolithic Power Systems MP2131GG
The MP2131 is a monolithic step-down, switchmode converter with built-in internal power MOSFETs. It achieves a 4 A continuous output current from a 2.7 V to 5.5 V input voltage with excellent load and line regulation. The MP2131 is ideal for powering portable equipment that run from a single cell lithium-ion (Li+) battery.DESCRIPTION
The output voltage is regulated as low as 0.6 V. The constant-on-time (COT) control scheme provides fast transient response, high light-load efficiency, and eases loop stabilization. Fault condition protection includes cycle-by-cycle current limit and thermal shutdown. The MP2131 requires a minimum number of readily available, standard, external components and is available in an ultra-small QFN-12 (2mm x 2mm) package. The MP2131 is ideal for a wide range of applications including portable instruments, small handheld and battery–powered devices, PDAs, and DVD drives. TYPICAL APPLICATION MP2131 High Efficiency, 4 A, 5.5 V, 1.2 MHz Synchronous Step-Down ConverterFEATURES
● Wide 2.7 V to 5.5 V Operating Input Range● Output Voltage as Low as 0.6 V
● 4 A Output Current
● 35 mΩ and 18 mΩ Internal Power MOSFET
● Above 96% Peak Efficiency
● Above 80% Light Load Efficiency
● Low IQ: 19 μA
● 1.2 MHz Frequency
● 100% Duty Cycle in Dropout
● 0.5 ms Internal Soft-Start Time
● EN and Po...