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Product Detailed Parameters
- Description：IC REG CTRLR BUCK 8PSOP
- Series：-
- Mfr：Diodes Incorporated
- Package：Tube
- Output Type：Transistor Driver
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Number of Outputs：1
- Output Phases：1
- Voltage - Supply (Vcc/Vdd)：4.5V ~ 13.2V
- Frequency - Switching：300kHz
- Duty Cycle (Max)：80%
- Synchronous Rectifier：Yes
- Clock Sync：No
- Serial Interfaces：-
- Control Features：Enable, Phase Control
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Supplier Device Package：8-PSOP
- Grade：-
- Qualification：-
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Overview
The AP3581BMP-G1 is a synchronous buck switching controller manufactured by Diodes Incorporated. It operates within a supply voltage range of 4.5V to 13.2V and features a fixed switching frequency of 300kHz. The device supports a maximum duty cycle of 80% and includes clock synchronization capabilities. It utilizes an 8-PSOP package with exposed pad for surface mount installation and functions across a temperature range of -40°C to 85°C.
Feature Summary
- Synchronous rectification architecture for improved efficiency
- Voltage-mode PWM control with fast transient response
- Supports tracking mode and stand-alone operation
Applications
- Point-of-load regulation in computing systems
- Industrial power distribution networks
- Telecommunications equipment power supplies
Procurement Notes
Verify the specific suffix G1 against the manufacturer's current datasheet to confirm RoHS compliance status and pinout configuration. Ensure the 8-PSOP package variant matches the intended PCB footprint requirements. Cross-reference the part number with official Diodes Incorporated documentation to validate availability status, as some variants may be subject to production changes or obsolescence notices.
Selection Notes
Select this component when a synchronous buck controller with a 300kHz fixed frequency is required. The 4.5V to 13.2V input range suits applications powered by standard bus voltages. Consider the 8-PSOP package for thermal management needs via the exposed pad. Verify that the 80% maximum duty cycle aligns with the desired output voltage ratio relative to the input supply.
Part Context
This part belongs to the AP3581 series of single-phase synchronous buck PWM controllers from Diodes Incorporated. It is designed for high-current applications requiring efficient power conversion. The series typically offers integrated drivers for external MOSFETs, reducing component count compared to non-synchronous alternatives.
Replacement Considerations
Check for AP3581AMP-G1 if an alternative package is needed. Verify compatibility with AP3585 series devices for similar functionality but different switching frequencies.
