MPQ4481-AEC1

MPQ4481-AEC1

NOT RECOMMENDED FOR NEW DESIGNS

36V, 3A, Step-Down Converter with Programmable Frequency and Spread Spectrum Option Single USB Charging Port Supporting EN_USB, Fault Indication for Automotive, AEC-Q100 Qualified

ALTERNATIVE PART

Datasheet EN

MPQ4481-AEC1 continues to be in production for existing customers. Please consider this alternative for new designs:

MPQ4228GRE-AEC1

3A, 36V, Buck Converter with USB Charging Port Supporting DCP and Type-C 5V @ 3A DFP Mode, AEC-Q100 Qualified

Features & Benefits

Supports Charging Only Type-C or Type-A Port
Negative Temperature Coefficient (NTC) Over-Temperature (OT) Detection
Passes Apple MFI R33 Certification Test
USB-IF Type-C Certified
145°C Internal Load Shedding Entry Temperature
Independent USB On/Off Control Pin (EN1)
Supports BC1.2 DCP Mode, Apple 3A Divider Mode, and 1.2V/1.2V Mode
USB_OUT, DP/DM, CC1/CC2 Pins Short to Battery Protection
Wide 4.2V to 36V Continuous Operating Input Voltage (V_IN) Range
Selectable Switching Frequency (f_SW) (420kHz and 2.2MHz with Spread Spectrum)
3A Output Current (I_OUT)
Integrated, Low, 20mΩ On Resistance (R_DS(ON)) USB Switch
Line Drop Compensation
Selectable Forced Continuous Conduction Mode (FCCM) Operation/Automatic Pulse-Frequency Modulation (PFM)/Pulse-Width Modulation (PWM) Operation
EN Shutdown Discharge Function
Fault Indication for Over-Current Protection (OCP), Over-Voltage Protection (OVP), and Over-Temperature Protection (OTP)
200kHz to 2.2MHz Frequency Sync
Hiccup Current Limit for Both Buck and USB
±8kV IEC 61000-4-2 Contact Discharge ESD Rating for CC1 and CC2 Pins
±8kV IEC 61000-4-2 Contact Discharge ESD Rating with Small Resistor, Capacitor on DP and DM Pins
±15kV IEC 61000-4-2 Air Discharge ESD Rating for DP, DM, CC1, and CC2 Pins
Available in a QFN-22 (4mmx4mm) Package with Wettable Flanks
Available in AEC-Q100 Grade 1

… and many more!

Description

The MPQ4481 integrates a monolithic, step-down, switch-mode converter with a single USB current-limit switch and Type-C 5V @ 3A mode configuration channel for the USB port. The MPQ4481 achieves 3A of output current with excellent load and line regulation over a wide input supply range.

The output of the USB switch is current-limited. The USB port supports DCP schemes for battery charging specification (BC1.2), divider mode, 1.2V/1.2V mode, and USB Type-C 5V @ 3A DFP mode without the need for outside user interaction.

Full protection features include hiccup current limiting, output over-voltage protection (OVP), and thermal shutdown.

The MPQ4481 requires a minimal number of readily available, standard, external components and is available in a QFN-26 (5mmx5mm) package.