MP2148

Active
5.5V, 1A, 2.2MHz High-Efficiency, 11uA Iq COT Step-Down Switcher with output discharge

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Product Description

The MP2148 is a monolithic, step-down, switch-mode converter with built-in internal power MOSFETs. It achieves 1A continuous output current from a 2.3V-to-5.5V input voltage with excellent load and line regulation. The output voltage can be regulated to as low as 0.6V. The Constant-On-Time control scheme provides fast transient response and eases loop stabilization. Fault protections include cycle-by-cycle current limiting and thermal shutdown. The MP2148 is available in an ultra-small QFN-6 (1.0mmx1.5mm) package and requires a minimal number of readily available standard external components. The MP2148 is ideal for a wide range of applications including high performance DSPs, wireless power, portable and mobile devices, and other low-power systems.

Product Features

  • Low IQ: 11?
  • 2.2MHz Switching Frequency
  • EN for Power Sequencing
  • Power Good Only for Fixed Output Version
  • Wide 2.3V-to-5.5V Operating Input Range
  • Output Adjustable from 0.6V
  • Up to 1A Output Current
  • 120m? and 80m? Internal Power MOSFET Switches
  • Output Discharge
  • Short-Circuit Protection with Hiccup Mode
  • Stable with Low ESR Output Ceramic Capacitors
  • Available in a QFN-6 (1.0mmx1.5mm) Package

Parametrics

  • fsw (max) (kHz)2200
  • Vin (min) (V)2.3
  • Vin (max) (V)5.5
  • Iout (max) (A)1
  • Isw Limit (typ) (A)2.4
  • Vfb (typ) (V)0.6
  • Iq (typ) (mA)0.011
  • Regulated Outputs1
  • Vout (max) (V)5.5
  • Vout (min) (V)0.6
  • mps_Status2
  • Mps StatusActive
  • GradeCatalog
  • PackageQFN-6 (1.0x1.5)
  • Control ModeCOT
  • Common FeaturesLight-Load Efficiency, Power Good, Synchronous Rectification
  • Special Features100% Duty Cycle, Fixed Output, Output Discharge

Evaluation Kit

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Kit details

The MP2148 is a monolithic, step-down, switch-mode converter with built-in internal power MOSFETs. It achieves 1A continuous output current from a 2.3V-to-5.5V input voltage with excellent load and line regulation. The output voltage can be regulated to as low as 0.6V.

The Constant-On-Time control scheme provides fast transient response and eases loop stabilization. Fault protections include cycle-by-cycle current limiting and thermal shutdown.

The MP2148 is available in an ultra-small QFN-6 (1.0mmx1.5mm) package and requires a minimal number of readily available standard external components.

The MP2148 is ideal for a wide range of applications including high performance DSPs, wireless power, portable and mobile Devices, and other low-power systems.

US$ 25.00 + tax