MP2269

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Wide Input 3.3V - 30V, 1A, 12µA IQ , Synchronous, Step-Down Converter with External Soft Start and Power Good in Small 2x3mm QFN Package



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Product Description

The MP2269 is a frequency-programmable (350kHz to 2.5MHz), synchronous, step-down, switching regulator with integrated, internal, high-side and low-side power MOSFETs. The MP2269 provides 1A of highly efficient output current with current-mode control for fast loop response. 
The wide 3.3V to 30V input range accommodates a variety of step-down applications. A 1μA shutdown mode quiescent current allows the MP2269 to be used in battery-powered applications.
High power conversion efficiency over a wide load range is achieved by scaling down the switching frequency at light-load condition to reduce switching and gate driving losses. 
An open-drain power good signal indicates the output signal. Frequency foldback helps prevent inductor current runaway during start-up. Thermal shutdown provides reliable and fault-tolerant operation. High duty cycle and low drop-out mode are provided for battery-powered systems. 
The MP2269 is available in a QFN-15 (2mmx3mm) package.

Programmable

Product Features

  • Wide 3.3V to 30V Operating Voltage Range
  • 1A Continuous Output Current
  • 1μA Low Shutdown Supply Current
  • 12μA Sleep Mode Quiescent Current
  • 180mΩ/80mΩ High-Side/Low-Side RDS(ON) for Internal Power MOSFETs
  • 350kHz to 2.5MHz Programmable Switching Frequency
  • Power Good Output
  • External Soft Start
  • 80ns Minimum On Time
  • Selectable Forced PWM Mode and Auto PFM/PWM Mode
  • Low Dropout Mode
  • Hiccup Over-Current Protection (OCP)
  • Available in a QFN-15 (2mmx3mm) Package

Parametrics

  • fsw (max) (kHz)2500
  • Vin (min) (V)3.3
  • Vin (max) (V)30
  • Iout (max) (A)1
  • Isw Limit (typ) (A)2.5
  • Max Duty Cycle (%)1
  • Vfb (typ) (V)0.8
  • Iq (typ) (mA)0.012
  • Regulated Outputs1
  • GradeCatalog
  • PackageQFN-15 (2x3)
  • Control ModeCurrent Mode
  • Common FeaturesExternal Soft Start, Power Good, Synchronous Rectification
  • Special FeaturesProgrammable Frequency

Evaluation Kit

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Kit details

The EV2269-D-00A demonstrates MPS’s MP2269, a fully-integrated, high efficiency, synchronous step-down switch mode converter with built-in high-side and low-side power MOSFETs. MP2269 provides up to 1A continuous output current over a wide input supply range with current mode control for fast loop response.

Full protection features include over-current protection (OCP) and thermal shutdown (TSD).

TheEvaluation Board can deliver 1A continuous load current over a wide input range with excellent load and line regulation.

This part requires minimum number of external components and is available in QFN15 (2mmx3mm) package.

$25.00 + tax