The AP64500Q is an automotive-compliant, 5A synchronous buck converter from Diodes Incorporated offers a wide input voltage range of 3.8 to 40V. The device fully integrates a 45mΩ, high-side power MOSFET and a 20mΩ low-side power MOSFET to provide high-efficiency step-down DC-DC conversion.
The AP64500Q device is easily used by minimizing the external component count due to its adoption of peak current-mode control. The AP64500Q design is optimized for electromagnetic interference (EMI) reduction.
The converter 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. It 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.
Diodes is a global manufacturer and supplier of high-quality application specific standard products.
- Automotive Power Systems
- Automotive Infotainment
- Automotive Instrument Clusters
- Automotive Telematics
- Automotive Lighting Control
- Advanced Driver Assistance Systems
- AEC-Q100 Qualified with the Following Results
- Device Temperature Grade 1: -40° to +125° C TA Range
- Device HBM ESD Classification Level H2
- Device CDM ESD Classification Level C5
- VIN: 3.8 to 40V
- 5A Continuous Output Current
- 0.8V ±1% Reference Voltage
- 25µA Low Quiescent Current (Pulse Frequency Modulation)
- Programmable Switching Frequency: 100 to 2.2MHz
- External Clock Synchronization: 100 to 2.2MHz
- Up to 85% Efficiency at 5mA Light Load
- 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
- Undervoltage Lockout (UVLO)
- Output Overvoltage Protection (OVP)
- Cycle-by-Cycle Peak Current Limit
- Thermal Shutdown
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