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Product Detailed Parameters
- Description：IC REG STEP-UP 20QFN
- Series：-
- Mfr：Allegro MicroSystems
- Package：Bulk
- Function：-
- Output Configuration：-
- Topology：Step-Up (Boost)
- Output Type：-
- Number of Outputs：-
- Voltage - Input (Min)：-
- Voltage - Input (Max)：-
- Voltage - Output (Min/Fixed)：-
- Voltage - Output (Max)：-
- Current - Output：-
- Frequency - Switching：352kHz
- Synchronous Rectifier：-
- Operating Temperature：-20°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：20-WFQFN Exposed Pad
- Supplier Device Package：20-QFN-EP (4x4)
- Grade：-
- Qualification：-
Download product information
Overview
The A8303SESTR-T is a specialized power management integrated circuit manufactured by Allegro MicroSystems, designed for low-noise module regulation applications. It integrates a boost converter and a linear regulator (LDO) into a single output configuration. The device operates within an input voltage range of up to 30V and features a switching frequency of 352kHz. It is housed in a 20-WFQFN package with an exposed pad, measuring 4x4 mm, suitable for surface mount installation. The component supports an operating temperature range from -20°C to +85°C.
Feature Summary
- Integrates both boost and linear regulator topologies for versatile power conversion
- Designed specifically for low-noise module regulation requirements
- Utilizes a compact 20-pin QFN package with exposed thermal pad
Applications
- Low-noise module power supply systems
- Satellite communication equipment
- RF signal processing circuits
Procurement Notes
Verify the current lifecycle status before procurement as this specific part number may be discontinued or subject to change. Confirm the exact package variant and suffix requirements against the latest manufacturer datasheet. Ensure compatibility with existing board layouts due to the specific 20-QFN footprint dimensions.
Selection Notes
Select this component when a combined boost and LDO solution is required for noise-sensitive applications. Consider the 352kHz switching frequency for EMI management and the 30V maximum input rating for system voltage headroom. Evaluate the thermal performance capabilities of the 4x4mm QFN package relative to the expected load conditions.
Part Context
This component belongs to the A8303 series of PMICs from Allegro MicroSystems. It is part of their portfolio focused on specialized voltage regulation solutions for demanding electronic environments. The series targets applications requiring clean power delivery for sensitive analog or RF sections within larger systems.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Consult the manufacturer's official obsolescence notices or cross-reference guides for potential alternatives if this unit is discontinued.
