Diodes Incorporated

AP64203Q/AP64303Q High-Efficiency Automotive Grade Buck Converters

Diodes AP64203Q/AP64303Q converters feature adjustable switching frequencies and integrate high-side and low-side power MOSFETs to achieve a 95% efficiency

Image of Diodes AP64203Q/AP64303Q High-Efficiency Buck ConvertersDiodes AP64203Q and AP64303Q high-performance, automotive-grade synchronous buck converters are designed to provide efficient DC/DC conversion for a wide range of applications. Both converters feature adjustable switching frequencies and integrate high-side and low-side power MOSFETs to achieve up to 95% efficiency. The AP64203Q supports a continuous load current of up to 2 A, while the AP64303Q can handle up to 3 A.

These devices are AEC-Q100 qualified, ensuring reliability in automotive environments. With features like current mode control, external soft-start, and overcurrent protection, these converters simplify power management in distributed power systems, automotive infotainment, and more. Their compact design and minimal external component requirements make them ideal for space-constrained applications.

Features
  • Wide input voltage range: 3.8 V to 40 V
  • High efficiency: Up to 95%
  • Continuous output current: 2 A (AP64203Q), 3 A (AP64303Q)
  • Adjustable output voltage: 0.8 V to 36 V
  • Adjustable switching frequency: Default 500 kHz
  • Integrated high-side and low-side MOSFETs: 185 mΩ/80 mΩ (AP64203Q), 120 mΩ/55 mΩ (AP64303Q)
  • Current mode control: Easy loop stabilization
  • External soft-start: Sequential, ratiometric, or absolute
  • Pre-biased output startup
  • Power good detection: With internal pull-up resistor
  • Overcurrent protection (OCP): With hiccup mode
  • Thermal protection
  • Soft discharge
  • AEC-Q100 qualified: Automotive grade
  • Compact package: U-QFN4040-16/SWP (Type UXB)
Applications
  • General purpose point-of-load (PoL) DC/DC power conversion
  • Automotive infotainment systems
  • Telecommunication systems
  • Distributed power systems
  • Home audio devices
  • Consumer electronics
  • Network systems
  • FPGA, DSP, and ASIC supplies
  • Green electronics
  • Industrial control systems
  • Battery-powered equipment
  • Portable devices
  • Medical devices
  • Security systems
  • LED lighting

AP64203Q/AP64303Q High-Efficiency Automotive Grade Buck Converters

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
IC REG BUCK ADJ 2A U-QFN4040-16AP64203QFVBW-13IC REG BUCK ADJ 2A U-QFN4040-161834 - Immediate$1.29View Details
IC REG BUCK ADJ 3A U-QFN4040-16AP64303QFVBW-13IC REG BUCK ADJ 3A U-QFN4040-162813 - Immediate$1.46View Details
Published: 2024-12-10