AP63301 Datasheet | Diodes Incorporated

Description The AP63300/AP63301 is a 3A, synchronous buck converter with a wide input voltage range of 3.8V to 32V. The device fully integrates a 75mΩ high-side power MOSFET and a 40mΩ low-side power MOSFET to provide high-efficiency step-down DC-DC conversion. The AP63300/AP63301 device is easily used by minimizing the external ponent count due to its adoption of peak current mode control along with its integrated loop pensation network. The AP63300/AP63301 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. AP63300 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 a TSOT26 package. Pin Assignments TOP VIEW FB 1 EN 2 VIN 3 TSOT26 6 BST 5 SW 4 GND Features - VIN 3.8V to 32V - 3A Continuous Output Current - 0.8V ± 1% Reference Voltage - 22µA Low Quiescent Current (Pulse Frequency Modulation) - 500k Hz Switching Frequency - Supports Pulse Frequency Modulation (PFM) o AP63300 o Up to 88% Efficiency at 5m A Light Load - Pulse Width Modulation (PWM) Regardless of Output Load o AP63301 - Proprietary Gate Driver Design for Best EMI Reduction - Frequency Spread Spectrum (FSS) to Reduce EMI o AP63300 - Low-Dropout (LDO) Mode - Precision Enable Threshold to Adjust UVLO - Protection Circuitry o Undervoltage Lockout (UVLO) o Output Overvoltage Protection (OVP) o Cycle-by-Cycle Peak Current Limit o Thermal Shutdown - Totally Lead-Free & Fully Ro HS pliant (Notes 1 & 2) - Halogen and Antimony Free. “Green” Device (Note 3) Applications - 5V, 12V, and 24V Distributed Power Bus Supplies - Flat Screen TV Sets and Monitors - Power Tools and Laser Printers - White Goods and Small Home...