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Product Detailed Parameters
- Description：IC REG CTRLR BUCK SOT23-5
- Series：-
- Mfr：ABLIC Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Transistor Driver
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Number of Outputs：1
- Output Phases：1
- Voltage - Supply (Vcc/Vdd)：2.5V ~ 10V
- Frequency - Switching：180kHz
- Duty Cycle (Max)：100%
- Synchronous Rectifier：No
- Clock Sync：No
- Serial Interfaces：-
- Control Features：Enable
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：SC-74A, SOT-753
- Supplier Device Package：SOT-23-5
- Grade：-
- Qualification：-
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Overview
The S-8520A34MC-AVTT2U is a step-down DC-DC switching regulator controller manufactured by ABLIC Inc. It operates with a fixed switching frequency of 180kHz and supports a maximum duty cycle of 100%. The device accepts a supply voltage (Vcc/Vdd) ranging from 2.5V to 10V. It provides a single positive output configuration via a transistor driver stage. The component is housed in an SC-74A, SOT-753, or SOT-23-5 surface-mount package. It functions without synchronous rectification and lacks clock synchronization capabilities. The operational temperature range extends from -40°C to +85°C.
Feature Summary
- Supports 100% maximum duty cycle for low dropout operation
- Integrated enable control feature for power management
- Fixed 180kHz switching frequency for stable regulation
Applications
- Portable electronic devices requiring compact power solutions
- Battery-powered systems utilizing step-down conversion
- General purpose DC-DC converter designs
Procurement Notes
Verify the specific suffix codes against official ABLIC documentation to ensure correct output voltage and package selection. Confirm RoHS compliance status and environmental declarations prior to integration. Cross-reference the manufacturer part number with distributor listings to validate authenticity and current production status. Ensure design compatibility with the specified SOT-23-5 footprint and thermal requirements.
Selection Notes
Select this controller for applications requiring a non-synchronous buck topology with a fixed 180kHz frequency. It is suitable for designs needing a wide input supply range up to 10V and operation across industrial temperature ranges. Consider the external component requirements for the transistor driver stage when finalizing the schematic.
Part Context
This component belongs to the S-8520 series of switching regulators from ABLIC Inc. The series focuses on efficient power management using CMOS technology. The S-8520A34MC variant specifically denotes the electrical characteristics and packaging configuration within this product line.
Replacement Considerations
Consult official ABLIC substitution guides for verified alternatives. Generic replacements may not match the specific 180kHz frequency or 100% duty cycle capability.
