MCP14628 Data Sheet

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  2A Synchronous Buck Power MOSFET Driver


The MCP14628 is a synchronous MOSFET driver used for driving MOSFETs in a rectified bridge arrangement. This type of arrangement is typical of synchronous buck converter topologies.There are two separate drivers contained in the MCP14628. the low-side driver output drives a non-floating or ground reference N-Channel MOSFET. The high-side driver is designed to drive a floating N-Channel MOSFET. since the N-Channel is floating, this output needs to be able to handle the high voltages required to fully turn on the high-side MOSFET. An external bootstrap capacitor is used to provide the additional voltage. The MCP14628 is available in a surface mount 8 Lead SOIC package with a body width of 150 mils and the 8 Lead 3mmX3mm DFN package.
Parameter Name  Value
Power  Single  
Peak Output Current (mA)  2000
Output Resistance (RH/RL)(Max. @ 25°C)  2.5/2.5
Max. Supply Voltage (V)  5
Input/Output Delay (td1, td2)1 (ns)  25/25
Configuration  Non-Inverting  
Description  High-Side/Low-Side MOSFET Drivers
Operating Temp. Range (°C)  -40 to 85

     Features
- Adaptive Cross conduction protection
- High capacitive load drive Capability:
  3000 pF in 8.0 ns (typ)
- Low Supply Current: 80 uA (typ)
- High Peak Output Current:
  Source 2.0A (UGATE & LGATE)
  Sink 2.0A (UGATE) & 4A (LGATE)
- Internal Bootstrap Blocking Device
- Enhanced Light Load Efficiency Mode
- Supports Floating High-Side Drive
- Packaging:
  8 Lead surface mount SOIC, 150 mil body
  8 Lead 3mmX3mm DFN


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