Monolithic Power Systems (MPS) MP2122A Switching Voltage Regulators

Monolithic Power Systems (MPS) MP2122A Switching Voltage Regulators are internally compensated, 1MHz fixed switching frequency, PWM, synchronous, and step-down regulators with advanced light-load mode. These regulators integrate dual 80mΩ high-side switches and 35mΩ synchronous rectifiers for high efficiency without an external Schottky diode. The MP2122A switching voltage regulators operate from a 2.7V to 6V input voltage range, 0.608V output voltage, and 45μA quiescent current. 

The MP2122A switching voltage regulators feature Cycle-by-Cycle Over-Current Protection (OCP) and thermal shutdown. These regulators offer >93% peak efficiency, 180° phase-shifted operation, and 100% duty cycle operation. The MP2122A switching voltage regulators are used in applications such as DVD drivers, portable instruments, smartphones and feature phones, and battery-powered devices.

Features

  • 1MHz fixed switching frequency
  • Advanced light-load mode
  • >93% peak efficiency
  • >80% light-load efficiency
  • 180° phase-shifted operation
  • Cycle-by-Cycle Over-Current Protection (OCP)
  • Short-Circuit Protection (SCP) with hiccup mode
  • 100% duty cycle operation
  • Thermal shutdown
  • Available in a TSOT23-8 package

Specifications

  • Dual 2A output current
  • 2.7V to 6V wide operating input voltage range
  • 0.608V to VIN adjustable output voltage
  • 80mΩ and 35mΩ internal power MOSFET
  • 45μA quiescent current

Applications

  • Small/handheld devices
  • DVD drivers
  • Portable instruments
  • Battery-powered devices
  • Smartphones and feature phones

Application Circuit Diagram

Application Circuit Diagram - Monolithic Power Systems (MPS) MP2122A Switching Voltage Regulators
Publicado: 2021-11-12 | Actualizado: 2023-01-19