MP4247

36V, 100W, Buck-Boost Converter with Integrated Low-Side Power MOSFETs and I²C Interface

Description

The MP4247 is a buck-boost converter with two integrated low-side power MOSFETs (LS-FETs). It can provide up to 100W of peak output power at certain input voltages (V_IN), with excellent efficiency. The MP4247 is well-suited for USB power delivery (PD) applications.

The device can operate with an external USB PD controller via the I²C interface. The I²C interface and one-time programmable (OTP) memory provide flexible and configurable parameters.

Full protection features include constant current (CC) limiting, output over-voltage protection (OVP), and thermal shutdown. The MP4247 requires a minimal number of readily available, standard external components, and is available in a QFN-20 (3mmx5mm) package.

Features & Benefits

UL and IEC62368-1 Certified, E-File # 322138
100W Buck-Boost Converter with Integrated Low-Side MOSFETs
Integrated Gate Driver for High-Side Power MOSFETs
3.6V to 36V Start-Up Input Voltage (V_IN) Range
1V to 24V Output Voltage (V_OUT) Range with 1% Accuracy
Supports 2.8V Falling V_IN when V_OUT > 3.5V
Up to 5A Output Current (I_OUT)
Up to 98% Peak Efficiency
0.1V to 2.147V Configurable Reference Voltage (V_REF) with 1mV Resolution via the I²C
Output Constant Current (CC) Limit with ±5% Accuracy
Meets USB PD 3.0 with PPS Specifications
280kHz, 420kHz, or 600kHz Selectable Switching Frequency (f_SW)
Selectable Forced Pulse-Width Modulation (FPWM) Mode or Auto-PFM/PWM Mode
Output-Biased VCC LDO for High Efficiency
Output Current Monitor (IMON)
Line Drop Compensation via RSENS
I²C, Alert, and One-Time Programmable (OTP) Memory
Enable (EN) Shutdown Passive Discharge
Output Over-Current Protection (OCP)
Output Over-Voltage Protection (OVP)
Thermal Shutdown
Available in a QFN-20 (3mmx5mm) Package