MP28119
NOT RECOMMENDED FOR NEW DESIGNS
Ultra-small 1.7MHz, 600mA, 1.0V and 1.2V Fixed Out-put Versions, Synchronous Step-Down Converter
MP28119 continues to be in production for existing customers. Please consider this alternative for new designs:

MP2141N
MP2141N
1A, Synchronous, Step-Down Converter with 11µA Quiescent Current in SOT563
Features & Benefits
- Low Quiescent Current: 11μA
- 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
- 120mΩ and 80mΩ Internal Power MOSFET Switches
- Output Discharge
- Short-Circuit Protection (SCP) with Hiccup Mode
- Stable with Low ESR Output Ceramic Capacitors
- 100% Duty Cycle
- Available in a SOT563 Package
… and many more!
アクティブ部品番号
MP28119EG-LF-P MP28119EG-LF-Z
P&Zの意味
Evaluation Tools

The EV28119 evaluation board is designed for low dropout step down converter applications. It implements the MP28119 1.7MHz fixed frequency, current-mode, PWM step-down converter. The device integrates a main switch and a synchronous rectifier for high efficiency without an external Schottky diode. It is ideal for powering portable equipment that runs from a single cell Lithium-Ion (Li+) Battery. It can supply 600mA of load current from a 2.5V to 6V input voltage. The output voltage can be regulated as low as 0.6V. In 100% Duty Cycle Dropout operation, it works with minimum input voltage as low as output voltage. It can output voltage as low as 1V from 6V input due to its very small minimum on-time. Furthermore, with the output discharge function, even at no load, the output voltage falls quickly when disabled.
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