MP28119
   
Ultra-small 1.7MHz, 600mA, Low-Voltage Synchronous Step-Down Converter
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DESCRIPTION
 
The MP28119 is a 1.7MHz constant frequency, current mode, ultra-small PWM step-down converter. The device integrates a main switch and a synchronous rectifier for high efficiency and eliminates the need for an external Schottky diode. It is ideal for powering portable equipment that runs from a single cell Lithium-Ion (Li+) battery. The MP28119 can supply 600mA of load current from a 2.5V to 6V input voltage. The MP28119 offers fixed 1.0V and 1.2V output option and adjustable output option. The MP28119 can run at 100% duty cycle for low dropout applications, and includes an output discharge function to control the discharging of the output capacitor. The MP28119 is available in an ultra-small 2x2 QFN package.

 
FEATURES
DOCUMENTS
  • High Efficiency: Up to 89%
  • 1.7MHz Constant Switching Frequency
  • 600mA Available Load Current
  • 2.5V to 6V Input Voltage Range
  • 100% Duty Cycle in Dropout
  • Current Mode Control
  • Short Circuit Protection
  • Thermal Fault Protection
  • Output Discharge Function
  • <0.1μA Shutdown Current
  • 1.0V and 1.2V Fixed Out-put Versions
  • Ultra-Small 2x2 QFN Package
 
Product Datasheets
 MP28119 
Datasheet Request
Evaluation Boards
EV28119EQ-00A
TYPICAL APPLICATION
 
   
     
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