MPM3811 Power Module in a Small QFN Package

MPS' MPM3811 2.3 V to 5.5 V input, 1 A power module in a small 2 mm x 2 mm x 1.6 mm QFN package

Image of Monolithic Power Systems' MPM3811 Power Module Monolithic Power Systems' MPM3811 is a monolithic, step-down, switch-mode converter with built-in, internal power MOSFETs and an inductor. The MPM3811 achieves 1 A of continuous output current from a 2.3 V to 5.5 V input voltage with excellent load and line regulation. The MPM3811 is ideal for a wide range of applications, including high-performance DSPs, wireless power, portable and mobile devices, and other low-power systems. The output voltage can be regulated as low as 0.6 V. Only input capacitors, output capacitors, and feedback (FB) resistors are needed to complete the design.

The constant-on-time (COT) control scheme provides fast transient response, high light-load efficiency, and easy loop stabilization. Full protection features include cycle-by-cycle current limiting and thermal shutdown. The MPM3811 requires a minimal number of readily available, standard, external components and is available in an ultra-small QFN-10 (2 mm x 2 mm x 1.6 mm) package.

Block Diagram

Image of Monolithic Power Systems' MPM3811 Power Module Block Diagram

Features
  • Up to 91% peak efficiency
  • Wide 2.3 V to 5.5 V operating input range
  • Output voltage as low as 0.6 V
  • 100% duty cycle in dropout
  • 1 A output current
  • 2.2 MHz frequency
  • EN for power sequencing
  • Cycle-by-cycle overcurrent protection (OCP)
  • 0.5 ms internal soft-start (SS) time
  • Output discharge
  • Short-circuit protection (SCP) with hiccup mode
  • Thermal shutdown
  • Stable with low ESR output ceramic capacitors
  • Available in a QFN10 (2 mm x 2 mm x 1.6 mm) package
Applications
  • Optical modules
  • IoT devices
  • Handheld printers/POS
  • Portable devices
  • Low voltage I/O system power
  • Space-constraint systems

MPM3811 Power Module

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
MPM3811GG-P datasheet linkPWR MGMT SWITCHING REGULATORMPM3811GG-PPWR MGMT SWITCHING REGULATOR490 - Immediate
MPM3811GG-P product page link
MPM3811GG-Z datasheet linkPWR MGMT SWITCHING REGULATORMPM3811GG-ZPWR MGMT SWITCHING REGULATOR2500 - Immediate
MPM3811GG-Z product page link
Published: 2018-10-30