AP64203Q Datasheet | Diodes Incorporated

Description The AP64203Q is an adjustable switching frequency, internally pensated, synchronous DC-DC buck converter with a default internal frequency of 500k Hz. The device fully integrates a 185mΩ high-side power MOSFET and an 80mΩ low-side power MOSFET to provide highly efficient step-down DC-DC conversion. The AP64203Q enables continuous load current of up to 2A with as high as 95% efficiency. The device features current mode control operation, enabling easy loop stabilization, and supports a wide range of output capacitive loads. With its high level of integration and minimal need for external ponents, the AP64203Q simplifies board layout and reduces space requirements. This makes it ideal for distributed power architectures. The AP64203Q is available in the standard Green U-QFN404016/SWP (Type UXB) package. Pin Assignments 16 15 14 BIAS 1 VCC 2 VIN 3 VIN 4 EPAD GND FB SS/TR PG 13 12 MSYNC 11 FS 10 EN 9 PGND 8 BST SW SW PGND Features - Qualified for Automotive Applications - AEC-Q100 Qualified with the Following Results - Device Temperature Grade 1: -40°C to +125°C TA - Device HBM ESD Classification Level H1C - Device CDM ESD Classification Level C3B - VIN 3.8V to 40V - 2A Continuous Output Current - VOUT Adjustable from 0.8V to 36V - Enhanced Efficiency Mode with Bias - Adjustable Switching Frequency. 500k Hz Default Frequency - 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 Internal Pull-Up Resistor - Overcurrent Protection (OCP) with Hiccup - Thermal Protection - Totally Lead-Free & Fully Ro HS pliant (Notes 1 & 2) - Halogen and Antimony Free. “Green” Device (Note 3) - The AP64203Q is suitable for automotive applications requiring specific change control; this part is AEC-Q100 qualified, PPAP capable, and manufactured in IATF 16949 certified facilities....