Order- MPQ4253B-AEC1
MPQ4253B-AEC1
36V Buck Converter Supports One USB Type-A, One USB Type-C Dual USB Charging Ports and Passes Apple MFI, AEC-Q100 Qualified
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Description
The MPQ4253B integrates a monolithic, step-down switch-mode converter with two USB current-limit switches and charging port identification circuitry for each port. The MPQ4253B can achieve up to 6A of output current (IOUT) across a wide input voltage (VIN) range, with excellent load and line regulation.
The USB outputs are fixed as one USB Type-A USB port and one USB Type-C USB port. Each USB switch is current-limited. The USB1 port supports USB Type-C 5V @ 3A DFP mode. The USB2 port supports DCP schemes for battery charging specification (BC1.2), Apple divider 3 mode, and 1.2V/1.2V mode, which eliminates the need for outside user interaction.
The MPQ4253B buck and USB2 output are always on if EN is high. If USB2 detects that a device is plugged in, then the USB1 port capability changes to 1.5A automatically.
The step-down converter uses peak current (IPEAK) mode control to regulate IOUT. Under light-load conditions, the part enters pulse-frequency modulation (PFM) mode to improve efficiency.
Full protection features include over-current protection (OCP) with hiccup mode, output over-voltage protection (OVP), and thermal shutdown. The device supports load-shedding mode for the USB1 port. When entering load-shedding, the USB Type-C advertised current capability changes to 1.5A.
The MPQ4253B requires a minimal number of readily available, standard external components, and is available in a QFN-26 (5mmx5mm) package.
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Features & Benefits
- All-In-One USB Type-C + USB Type-A Solution
- Passes Apple MFI Certification Test
- USB Type-C Auto-Entry, 1.5A Load Capability when the USB Type-A Port Detects a Device Is Plugged In
- Default Frequency Spread Spectrum (FSS) at 480kHz (FREQ is Floating)
- Auto-Pulse-Frequency Modulation (PFM)/Pulse-Width Modulation (PWM) Mode
- Wide 6V to 36V Operating Input Voltage (VIN) Range
- Selectable Output Voltage (VOUT): 5.1V, 5.17V, or 5.3V
- 90mV Line-Drop Compensation
- Accurate USB1/USB2 Output Current Limit (IOUT_LIMIT)
- 18mΩ/15mΩ Internal, Low On Resistance (RDS(ON)) Buck Power MOSFETs
- 18mΩ/18mΩ Internal, Low RDS(ON) USB1/USB2 Power MOSFETs
- 250kHz to 1MHz Adjustable Switching Frequency (fSW)
- Buck and USB Over-Current Protection (OCP) with Hiccup Mode
- Supports Dedicated Charging Port (DCP) Schemes for BC1.2, Apple Divider 3 Mode, and 1.2V/1.2V Mode
- Supports USB Type-C 5V @ 3A Downstream Facing Port (DFP) Mode
- Available in a QFN-26 (5mmx5mm) Package
- Available in AEC-Q100 Grade 1
Active Part Numbers:
MPQ4253BGU-AEC1-Z MPQ4253BGU-AEC1-P
Part numbers ending in P and Z are the same parts. P and Z only indicates reel size.
Meaning of P & Z
MPQ4253B-AEC1 Resources
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APPLICATION
INFOTAINMENT SYSTEMSAPPLICATIONAutomotive in-vehicle infotainment systems are becoming increasingly software-driven to enhance safety and security, as well as the overall driving experience. Modern cars integrate driving and environmental information, passenger entertainment, wireless connections, and navigation into a centralized infotainment system architecture. However, with the rise of sophisticated in-vehicle infotainment ...
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APPLICATION
STANDARD USB TYPE-C/TYPE-AAPPLICATIONStandard USB Type-C and Type-A designs for automotive applications are more popular than ever. USB ports have become an expected standard in most car models, and many offer both charging and data functionality, as well as support for USB 2.0 and 3.0. These designs are tasked with optimizing efficiency, preserving signal integrity across a variety of possible cables, and adhering to strict automoti...
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