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Product Detailed Parameters
- Description：IC REG BUCK ADJ 2A U-QFN4040-16
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR),Cut Tape (CT)
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：3.8V
- Voltage - Input (Max)：40V
- Voltage - Output (Min/Fixed)：3.8V
- Voltage - Output (Max)：36V
- Current - Output：2A
- Frequency - Switching：500kHz
- Synchronous Rectifier：Yes
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount, Wettable Flank
- Package / Case：16-UQFN Exposed Pad
- Supplier Device Package：U-QFN4040-16/SWP (Type UXB)
- Grade：-
- Qualification：-
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Overview
The AP64203QFVBW-13 is a high-efficiency automotive-grade synchronous buck converter manufactured by Diodes Incorporated. It integrates high-side and low-side power MOSFETs to achieve up to 95% efficiency. The device supports a continuous output current of 2 A with an input voltage range of 3.8 V to 40 V. It features adjustable switching frequency, defaulting to 500 kHz, and offers an adjustable output voltage from 0.8 V to 36 V. Packaged in a compact U-QFN4040-16/SWP (UXB type) format, it complies with AEC-Q100 standards for automotive reliability.
Feature Summary
- Integrates high-side and low-side power MOSFETs for high efficiency
- Complies with AEC-Q100 automotive qualification standards
- Features adjustable switching frequency and external soft-start capabilities
Applications
- Automotive infotainment systems
- Distributed power management systems
- Space-constrained electronic designs
Procurement Notes
Verify the specific suffix '13' corresponds to the required tape-and-reel packaging quantity of 3000 units as documented. Confirm that the U-QFN4040-16/SWP package variant matches the target PCB footprint requirements. Ensure the component meets the necessary AEC-Q100 Grade specifications for the intended automotive application environment.
Selection Notes
Select this component when a 2 A continuous load capability is required within a 40 V input system. The integrated MOSFET design reduces external component count compared to discrete solutions. The adjustable switching frequency allows optimization for EMI performance or transient response needs. Verify thermal dissipation requirements given the compact U-QFN4040-16/SWP package dimensions.
Part Context
This part belongs to the AP64203Q/AP64303Q family of high-performance synchronous buck converters designed for automotive applications. It shares architectural similarities with the AP64303Q but is rated for 2 A rather than 3 A output current. The family utilizes current mode control and includes comprehensive protection features such as overcurrent and thermal shutdown.
Replacement Considerations
The AP64303QFVBW-13 serves as a higher-current alternative within the same family, offering 3 A output capability in the identical package.
