Microchip MCP14628 and MCP14700 Synchronous Buck MOSFET Drivers

Microchip Technology introduced the MCP14628 and MCP14700 synchronous Buck MOSFET drivers. The devices drive two N-Channel MOSFETs arranged in a non-isolated, synchronous Buck converter topology. The MCP14628 and MCP14700 are ideal for the consumer and computing markets, such as digital power conversion, DC-to-DC power supplies, three-phase BLDC motor control and telecom equipment. The MCP14628 and MCP14700 MOSFET drivers are available in 8-pin SOIC and 3 mm x 3 mm DFN packages, for $1.17 and $1.33 each respectively, in 10,000-unit quantities. They can be ordered today.

Microchip Technology MCP14628 and MCP14700 synchronous Buck MOSFET drivers

MCP14628 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 and LGATE) and Sink 2.0A (UGATE) and 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 and 8 Lead 3mmX3mm DFN

MCP14700 Features

  • Independent PWM input Control for High_Side and Low_Side Gate Drive
  • inputs are dsPIC compatible
  • High capacitive load drive Capability: 3300 pF in 10.0 ns (typ)
  • Low Supply Current: 80 uA (typ)
  • High Peak Output Current: Source 2.0A (UGATE and LGATE) and Sink 2.0A (UGATE) and 4A (LGATE)
  • Internal Bootstrap Blocking Device
  • Supports Floating High-Side Drive
  • Packaging: 8 Lead surface mount SOIC, 150 mil body and 8 Lead 3mmX3mm D

The MCP14628 MOSFET driver includes an enhanced light-load efficiency mode that conserves energy when the power supply is not in full use. The dual-input MCP14700 driver is ideal for controllers that utilize 3.0V TTL/CMOS logic, and can control the high and low sides independently, which optimizes the timing between the two sides and further maximizes efficiency. In addition, the MCP14700 driver’s timing can be adjusted to a wide range of external MOSFETs, giving designers more flexibility to use different types of MOSFETs in their applications.

More info: Microchip Technology