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The AP63300Q/AP63301Q is an automotive-compliant, 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 AP63300Q/AP63301Q device is easily used by minimizing the external component count due to its adoption of peak current mode control along with its integrated loop compensation network.
The AP63300Q/AP63301Q 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. The AP63300Q 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.
AEC-Q100 Qualified for Automotive Applications
Device Temperature Grade 1: -40°C to +125°C TA Range
VIN: 3.8V to 32V
Output Voltage (VOUT): 0.8V to VIN
3A Continuous Output Current
8V ± 1% Reference Voltage
22µA Low Quiescent Current (Pulse Frequency Modulation)
500kHz Switching Frequency
Supports Pulse Frequency Modulation (PFM)
Up to 88% Efficiency at 5mA Light Load
Pulse Width Modulation (PWM) Regardless of Output 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
Undervoltage Lockout (UVLO)
Output Overvoltage Protection (OVP)
Cycle-by-Cycle Peak Current Limit
Totally Lead-Free & Fully RoHS Compliant
Halogen and Antimony Free. “Green” Device
The AP63300Q and AP63301Q are suitable for automotive applications requiring specific change control; these parts are AEC-Q100 qualified, PPAP capable, and manufactured in IATF 16949 certified facilities. https://www.diodes.com/quality/product-definitions/