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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)：60V
- Voltage - Output (Min/Fixed)：0.8V
- Voltage - Output (Max)：50V
- Current - Output：2A
- Frequency - Switching：300kHz ~ 2.5MHz
- 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：Automotive
- Qualification：AEC-Q100
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Overview
The AP66200QFVBW-13 is a synchronous high-voltage buck DC-DC converter manufactured by Diodes Incorporated. It operates with an input voltage range of 3.8 V to 60 V and delivers a maximum output current of 2 A. The device provides an adjustable output voltage from 800 mV to 50 V. Key electrical parameters include a switching frequency of 500 kHz, a typical quiescent current of 40 uA, and operation across a temperature range of -40 C to +125 C. It utilizes a U-QFN4040-16 package.
Feature Summary
- Complies with AEC-Q100 Grade 1 standards for automotive reliability
- Integrates internal loop compensation to minimize external component count
- Supports both PFM and PWM modes for optimized efficiency under varying loads
- Features wettable flank U-QFN packaging to enable automated optical inspection
Applications
- Automotive load point (PoL) power distribution
- High voltage step-down conversion in vehicle electronics
- Systems requiring wide input voltage tolerance
- Applications demanding low standby current consumption
Procurement Notes
Verify the specific suffix '13' corresponds to the required tape and reel quantity of 3000 units when sourcing. Confirm that the U-QFN4040-16 package variant matches the footprint requirements of the target PCB design. Ensure the procurement channel sources directly from authorized distributors to guarantee the authenticity of the AEC-Q100 qualified automotive grade component.
Selection Notes
Select this component for designs requiring a 60 V input capability with a 2 A output capacity. The integrated compensation network simplifies layout compared to devices requiring external phase lead/lag networks. Consider the 40 uA quiescent current for systems where power conservation during idle states is critical. The 500 kHz frequency offers a balance between component size and electromagnetic interference management.
Part Context
This part belongs to the AP66200 series of synchronous buck converters designed for high-voltage applications. It shares architectural similarities with the AP66300 series but is differentiated by its 2 A current rating versus the 3 A rating of the higher-current variant. Both series target automotive environments and utilize similar control topologies and protection features.
Replacement Considerations
The AP66300QFVBW-13 serves as a direct functional substitute offering increased current capacity. Designers must verify thermal performance and inductor selection when upgrading to the higher current variant. Other parts in the AP66xxx family may require re-evaluation of input/output voltage ranges and pin compatibility.
