Monolithic Power Systems (MPS) MPM3820 Synchronous Step-Down Converters

Monolithic Power Systems (MPS) MPM3820 Synchronous Step-Down Converters achieve 2A continuous output current from a 2.7V to 6V input voltage with excellent load and line regulation. These converters feature built-in power MOSFETs and an inductor. Designers can use the devices to regulate output voltage as low as 0.6V. The constant-on-time control (COT) scheme provides a fast transient response, high light-load efficiency, and easy loop stabilization. Fault condition protection includes a cycle-by-cycle current limit and thermal shutdown (TSD). MPS MPM3820 Synchronous Step-Down Converters require a minimum number of readily available standard external components. These devices are offered in a small QFN-20 package, making them ideal for powering portable equipment operating from a single-cell lithium-ion battery. 

Features

  • Wide 2.7V to 6V operating input range
  • Adjustable output from 0.6V
  • 3.0mm x 5.0mm x 1.6mm QFN-20 package
  • Low radiated emissions (EMI) complies with EN55022 Class B standards
  • 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 overcurrent protection
  • Short-circuit protection with hiccup mode
  • Adjustable output only needs 4 external components: 2 ceramic capacitors and FB divider resistors

Applications

  • Low voltage I/O system power
  • LDO replacement
  • Power for portable products
  • Storage (SSD/HDD)
  • Space-limited applications

Typical Application (Fixed Output)

Monolithic Power Systems (MPS) MPM3820 Synchronous Step-Down Converters
Paskelbta: 2015-03-06 | Atnaujinta: 2022-03-11