MP28115
NOT RECOMMENDED FOR NEW DESIGNS
MP28115 continues to be in production for existing customers. Please consider this alternative for new designs:

MP2131GG-Z
MP2131GG-Z
4A, 5.5V, 1.2MHz, High Efficiency, COT Synchronous Step-Down Converter with PG and Auto Discharge
Features & Benefits
- Wide 2.7 V to 5.5 V Operating Input Range
- Output Voltage as Low as 0.6 V
- 4 A Output Current
- 35 mΩ and 18 mΩ Internal Power MOSFET
- Above 96% Peak Efficiency
- Above 80% Light Load Efficiency
- Low IQ: 19 μA
- 1.2 MHz Frequency
- 100% Duty Cycle in Dropout
- 0.5 ms Internal Soft-Start Time
- EN and Power Good for Power Sequencing
- Auto Discharge at EN Off
- Short-Circuit Protection with Hiccup Mode
- Available in a QFN-12 (2mm x 2mm) Package
… and many more!
Active Part Numbers:
MP28115DQ-LF-P MP28115DQ-LF-Z
Meaning of P & Z
Evaluation Tools

The EV28115DQ-00B is an evaluation board for the MP28115. The MP28115 delivers 4A continuous load current over an operating input voltage 2.7V to 6.0V. The output is adjustable over a range of 0.8V to 0.9xVIN by means of an external resistor from FB pin to ground.
The current mode control used in MP28115 provides fast transient response and cycle-by-cycle current limiting. The EV board will go into hiccup mode to protect against over current/short circuit.
This EV board can be turned on or shut down via a remote ON/OFF input that is referenced to ground. This input is compatible with popular logic devices.
This EV board also has power good indicator. The output of POK is pulled to ground when output voltage is under or over 10% of its setting voltage.
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