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Product Detailed Parameters
- Description：IC REG BUCK ADJ 1.5A 8SO
- 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)：4.75V
- Voltage - Input (Max)：22V
- Voltage - Output (Min/Fixed)：0.81V
- Voltage - Output (Max)：15V
- Current - Output：1.5A
- Frequency - Switching：1.4MHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SO
- Grade：-
- Qualification：-
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Overview
The AP5101SG-13 is a non-synchronous step-down switching regulator IC manufactured by Diodes Incorporated. It operates with an input voltage range of 4.75V to 22V and provides a single positive adjustable output from 0.81V to 15V. The device delivers up to 1.5A of output current at a fixed switching frequency of 1.4MHz. It is housed in an 8-SOIC package (3.90mm width) and supports surface mount installation. The component functions within a junction temperature range of -40°C to 85°C.
Feature Summary
- Integrates a high-side N-channel MOSFET for efficient power conversion without requiring external synchronous rectification components.
- Utilizes constant-frequency peak current mode control architecture to ensure stable regulation under varying load conditions.
- Incorporates internal soft-start circuitry to limit inrush current during startup sequences.
Applications
- Battery-powered portable electronic devices requiring efficient voltage step-down
- General-purpose DC-DC conversion in embedded systems
- Power supply stages for microcontrollers and digital logic circuits
Procurement Notes
Verify the specific suffix 'SG-13' against the manufacturer's official datasheet to confirm packaging type and compliance status. Confirm that the 8-SOIC package dimensions match the design footprint requirements. Check for obsolescence notices as some sources indicate this part may be restricted for new designs. Ensure RoHS and REACH compliance documentation aligns with target market regulations before finalizing procurement.
Selection Notes
Select this component when an input voltage up to 22V must be regulated down to a lower adjustable level with moderate current demands. The 1.4MHz switching frequency allows for smaller passive components compared to lower-frequency alternatives. Consider the non-synchronous topology if cost reduction is prioritized over maximum efficiency at light loads. Verify thermal performance capabilities within the specified operating temperature range for the intended enclosure.
Part Context
This part belongs to the AP5101 series of buck converters from Diodes Incorporated. It shares functional similarities with other members like the AP5100, though package variations exist. The SG-13 designation typically indicates specific tape-and-reel packaging configurations used for automated assembly processes in manufacturing environments.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided source material. Engineers should consult the manufacturer's official cross-reference tools or datasheets for verified equivalents.
