Diodes Incorporated AP64202QSP | Demoboard AP64202QSP-EVM

Description

The AP64202Q is an automotive-compliant, 5A, synchronous buck converter with a wide input voltage range of 3.8V to 40V. The device fully integrates a 150mΩ high-side power MOSFET and a 80mΩ low-side power MOSFET to provide high-efficiency step-down DC-DC conversion. The AP64202Q device is easily used by minimizing the external component count due to its adoption of peak current mode control along with its integrated loop compensation network. The AP64202Q design is optimized for Electromagnetic Interference (EMI) reduction. The device has a proprietary gate driver scheme to resist switching node ringing without sacrificing MOSFET turn-on and turn-off times, which reduces high frequency radiated EMI noise caused by MOSFET switching. The AP64202Q also features Frequency Spread Spectrum (FSS) with a switching frequency jitter of ±6%, which reduces EMI by not allowing emitted energy to stay in any one frequency for a significant period of time. The device is available in an SO-8EP package.

Features

• Qualified for Automotive Applications
• Wide Input Range: 3.8V to 40V
• 2A Continuous Output Current
• 0.8V ±1% Reference Voltage
• 22µA Ultralow Quiescent Current (Pulse Frequency Modulation)
• Programmable Switching Frequency: 100kHz to 2.2MHz
• External Clock Synchronization: 100kHz to 2.2MHz
• Programmable Soft-Start Time
• Proprietary Gate Driver Design for Best EMI Reduction
• Frequency Spread Spectrum (FSS) to Reduce EMI
• Low-Dropout (LDO) Mode
• Precision Enable Threshold to adjust UVLO
• Protection Circuitry o Undervoltage Lockout (UVLO)-Output Overvoltage Protection (OVP)-Cycle-by-Cycle Peak Current Limit-Thermal Shutdown
• Totally Lead-Free & Fully RoHS Compliant
• Halogen and Antimony Free. “Green” Device

Typical applications

• Automotive Power Systems,
• Automotive Lighting Control
• Automotive Infotainment, Automotive Instrument Clusters, Automotive Telematics, Advanced Driver Assistance Systems