AP63300QWU-7

Overview

The AP63300QWU-7 is a synchronous buck converter from Diodes Incorporated, housed in a TSOT-26-6 package. It delivers a continuous output current of 3 A with an input voltage range of 3.8 V to 32 V and an adjustable output voltage from 800 mV to 31 V. The device integrates high-side and low-side power MOSFETs with on-resistances of 75 mΩ and 40 mΩ respectively. Operating at a fixed switching frequency of 500 kHz, it features a quiescent current of 22 uA and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Integrates proprietary gate driver technology to suppress switch node ringing and reduce high-frequency radiated EMI without compromising MOSFET switching times.
• Provides comprehensive protection mechanisms including undervoltage lockout (UVLO), overvoltage protection (OVP), overcurrent protection (OCP), thermal protection (OTP), and hiccup mode short-circuit protection (SCP).
• Supports automotive applications through compliance with AEC-Q100 standards and PPAP support, manufactured in IATF 16949 certified facilities.

Applications

• Automotive infotainment systems requiring robust power management under wide input voltage variations.
• On-board charging (OBC) units utilizing the component's high input voltage tolerance.
• General industrial equipment needing efficient DC-DC conversion with integrated EMI mitigation.

Procurement Notes

Verify that the specific suffix 'Q' denotes automotive qualification status as per the manufacturer's official documentation. Confirm the package type matches the required PCB footprint for the TSOT-26-6 configuration. Ensure environmental compliance requirements align with RoHS specifications listed in the datasheet. Cross-reference the part number against the latest Diodes Incorporated catalog to confirm availability and manufacturing origin details.

Selection Notes

Select this component when designing circuits requiring a compact synchronous buck solution with integrated EMI suppression capabilities. The wide input voltage range makes it suitable for applications with variable supply sources. Consider the 3 A output capability and low quiescent current for efficiency optimization in space-constrained designs. Verify that the operating temperature range meets the specific environmental conditions of the target application.

Part Context

This part belongs to the AP63300/01 series of synchronous step-down converters designed by Diodes Incorporated. The series is characterized by its ability to handle high input voltages while maintaining high efficiency through integrated power MOSFETs. The Q-suffix typically indicates automotive-grade qualification, distinguishing it from standard commercial variants within the same functional family.

Replacement Considerations

Direct substitutes include the AP63301QWU-7, which shares identical electrical characteristics and pinout configurations. Both parts belong to the same synchronous buck converter family and are interchangeable in designs not sensitive to minor internal control loop variations. Verify package compatibility and thermal performance when swapping between these specific model numbers.