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Monolithic Power Systems (MPS) MP4248 Buck-Boost Converters

Monolithic Power Systems (MPS) MP4248 Buck-Boost Converters offer two integrated low-side MOSFETs (LS-FETs) and are ideal for USB power delivery (PD) applications. The MP4248 achieves up to 140W of peak output power at a specific input voltage (VIN) range with exceptional efficiency. The MP4248 works with external USB PD controllers through the I2C interface. The I2C interface and one-time programmable (OTP) memory supply flexibility for configurable features.

Fault condition protections comprise constant current (CC) current limiting with a high-side (HS) current sense, output over-voltage protection (OVP), and thermal shutdown (TSD).

The MPS MP4248 needs a minimal number of readily available, standard external components and is housed in a QFN-20 (3mm x 5mm) package.

Features

  • IEC62368-1 certified
  • 140W buck-boost converter with integrated low-side MOSFETs (LS-FETs)
  • Integrated gate driver for high-side MOSFETs (HS-FETs)
  • Configurable input UVLO
  • 3.6V to 36V start-up input voltage range
  • 1V to 36V Output Voltage (VOUT) range with 1% accuracy
  • Supports 2.8V falling VIN when VOUT > 3.5V
  • Up to 98% peak efficiency
  • I2C-configurable VREF range of 0.1V to 2.147V with 1mV resolution
  • Accurate output CC current limit of ±5%, supports High-Side (HS) current sense
  • Accurate Output Current Monitor (IMON)
  • Meets USB PD 3.1 EPR AVS and PPS specification
  • Selectable 280kHz, 420kHz, and 580kHz Switching Frequency (fSW)
  • Selectable forced PWM mode or automatic PFM/PWM mode
  • Output bias VCC LDO for higher efficiency
  • Line drop compensation via RSENS
  • I2C, alert, and OTP memory
  • EN shutdown passive discharge
  • Output OCP, OVP, and thermal shutdown protection
  • Available in a QFN-20 (3mm x 5mm) package

Applications

  • USB Type-C® and USB Power Delivery (PD)
  • USB Type-C, USB Type-A communication interface, car charger
  • USB Type-C PD monitors and docking stations
  • Wireless charging

Associated Eval Board

Monolithic Power Systems (MPS) EVL4248-QV-00A Evaluation Board

Configured to evaluate the operation of the MP4248 buck-boost converter.

Learn Moreabout Monolithic Power Systems (MPS) EVL4248-QV-00A Evaluation Board View Productsrelated to Monolithic Power Systems (MPS) EVL4248-QV-00A Evaluation Board

TYPICAL APPLICATION

Application Circuit Diagram - Monolithic Power Systems (MPS) MP4248 Buck-Boost Converters
Performance Graph - Monolithic Power Systems (MPS) MP4248 Buck-Boost Converters
Paskelbta: 2025-02-28 | Atnaujinta: 2025-03-13