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Product Detailed Parameters
- Description：IC REG BUCK ADJ 8A 12QFN
- 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)：4.5V
- Voltage - Input (Max)：17V
- Voltage - Output (Min/Fixed)：0.6V
- Voltage - Output (Max)：7V
- Current - Output：8A
- Frequency - Switching：400kHz, 800kHz, 1.2MHz
- Synchronous Rectifier：Yes
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：12-VFQFN
- Supplier Device Package：V-QFN2030-12 (Type A)
- Grade：-
- Qualification：-
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Overview
The AP62800SJ-7 is a synchronous step-down DC/DC converter manufactured by Diodes Incorporated. It delivers an output current of 8A with a fixed reference voltage of 0.6V and supports adjustable output voltages ranging from 0.6V to 7V. The device operates within an input voltage range of 4.5V to 17V and features a switching frequency of 800kHz. Packaged in a compact 12-VFQFN (V-QFN2030-12) surface-mount housing, it functions across a temperature range of -40°C to +85°C.
Feature Summary
- Constant On-Time (COT) control architecture for rapid transient response and simplified loop stability
- Selectable switching frequencies and operation modes including PFM, USM, and PWM for efficiency optimization
- Adjustable soft-start capability to mitigate inrush current and support system tracking requirements
- Integrated protection mechanisms including overcurrent protection, undervoltage lockout, and thermal shutdown
Applications
- Television and display systems
- Home audio equipment
- Game consoles
- General-purpose point-of-load power distribution
- Consumer electronics and white goods
Procurement Notes
Verify the specific suffix against official Diodes Incorporated documentation to confirm pin compatibility and electrical characteristics. Ensure the selected package variant matches the required PCB footprint and thermal dissipation needs. Confirm that the operating environment remains within the specified temperature limits for reliable performance.
Selection Notes
Select this component when high output current is required alongside flexible switching frequency options. The COT control topology simplifies external compensation compared to traditional voltage mode controllers. Consider the adjustable soft-start feature if system startup sequencing or inrush current limitation is critical for the application design.
Part Context
This part belongs to the AP62x00 series of high-efficiency synchronous buck converters. It shares the same pin configuration and physical package dimensions as the AP62500 and AP62600 models, facilitating design flexibility within the product family while offering distinct current handling capabilities.
Replacement Considerations
AP62500SJ-7: Lower current capacity but identical pinout and package. AP62600SJ-7: Intermediate current rating with compatible form factor. Verify thermal performance and load requirements before substituting.
