MP1605

Active

2A, 5.5V, 2.2MHz, Synchronous Step-Down Converter with Low 11µA Quiescent Current in SOT563 Package



Talk to an Engineer or get a Quote
Upgrade to myMPS+

Product Description

The MP1605 is a monolithic, step-down, switch-mode converter with built-in, internal power MOSFETs. It achieves 2A of output current from a 2.3V to 5.5V input voltage with excellent load and line regulation. The output voltage can be regulated as low as 0.6V.
The constant-on-time control scheme provides a fast transient response and eases loop stabilization. Full protection features include cycle-by-cycle current limiting and thermal shutdown. 
The MP1605 is available in an ultra-small SOT563 package and requires a minimal number of readily available, standard, external components.
The MP1605 is ideal for a wide range of applications, including high-performance DSPs, wireless power, portable and mobile devices, and other low-power systems.

Programmable

Product Features

  • Low IQ: 11μA
  • 2.2MHz Switching Frequency
  • EN for Power Sequencing
  • Wide 2.3V to 5.5V Operating Input Range
  • Output Adjustable from 0.6V
  • Up to 2A Output Current
  • 120mΩ and 80mΩ Internal Power MOSFET Switches
  • Output Discharge
  • Short-Circuit Protection (SCP) with Hiccup Mode
  • Stable with Low ESR Output Ceramic Capacitors
  • Available in a SOT563 Package
  • 100% Duty Cycle

Parametrics

  • fsw (max) (kHz)2200
  • Vin (min) (V)2.3
  • Vin (max) (V)5.5
  • Iout (max) (A)2
  • Max Duty Cycle (%)1
  • Vfb (typ) (V)0.6
  • Iq (typ) (mA)0.011
  • Regulated Outputs1
  • Vout (max) (V)5.5
  • Vout (min) (V)0.6
  • GradeCatalog
  • 封装SOT563
  • Control ModeCOT
  • Common FeaturesLight-Load Efficiency, Synchronous Rectification
  • 特性100% Duty Cycle, Output Discharge