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Diodes Incorporated AP64203Q/AP64303Q Synchronous Buck Converters

Diodes Incorporated AP64203Q/AP64303Q Synchronous Buck Converters are adjustable switching frequency and internally compensated synchronous DC-DC buck converters with a default internal frequency of 500kHz. The AP64203Q/AP64303Q converters fully integrate 185mΩ/120mΩ high-side power MOSFET and an 80mΩ/55mΩ low-side power MOSFET to provide highly efficient step-down DC-DC conversion. These AP64203Q/AP64303Q buck converters offer a continuous load current of up to 2A/3A with a high efficiency of 95%. These buck converters feature current mode control operation, enables easy loop stabilization, and supports a wide range of output capacitive loads. The AP64203Q/AP64303Q converters are used in automotive infotainments, telecommunication systems, distributed power systems, home audio devices, consumer electronics, green electronics, and network systems.

Features

  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1 of -40°C to 125°C TA range
    • Device HBM ESD classification level H1C
    • Device CDM ESD classification level C3B
  • 2A continuous output current (AP64203Q)
  • 3A continuous output current (AP64303Q)
  • 3.8V to 40V input voltage range
  • 0.8V to 36V adjustable output voltage range
  • Enhanced efficiency mode with bias
  • Default adjustable switching frequency of 500kHz
  • Start-up with pre-biased output
  • External soft-start with tracking – sequential, ratiometric, or absolute
  • Default internal soft-start of 1.7ms
  • Enable pin with 5% tolerance
  • Soft discharge
  • ±5% power good detection with an internal pull-up resistor
  • Overcurrent Protection (OCP) with hiccup
  • Thermal protection
  • Pb-free and RoHS-compliant
  • Halogen and antimony-free - "Green" device

Applications

  • General-purpose point-of-load DC-DC power conversion
  • Automotive infotainments
  • Telecommunication systems
  • Distributed power systems
  • Home audio devices
  • Consumer electronics
  • Network systems
  • FPGA, DSP, and ASIC supplies
  • Green electronics

Typical Application Circuits

Application Circuit Diagram - Diodes Incorporated AP64203Q/AP64303Q Synchronous Buck Converters
Application Circuit Diagram - Diodes Incorporated AP64203Q/AP64303Q Synchronous Buck Converters

Block Diagram

Block Diagram - Diodes Incorporated AP64203Q/AP64303Q Synchronous Buck Converters

Development Tools

Diodes Incorporated AP64203Q/AP64303Q Demonstration Boards

Showcases the high-efficiency performance of the AP64203Q and AP64303Q synchronous buck converters.

Learn MoreDiodes Incorporated AP64203Q/AP64303Q Demonstration Boards hakkında View ProductsDiodes Incorporated AP64203Q/AP64303Q Demonstration Boards ile ilgili
Yayınlandı: 2024-04-24 | Güncellenmiş: 2025-04-24