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Product Detailed Parameters
- Description：IC REG BOOST 5.25V 1A 9WLCSP
- Series：TinyBoost®
- Mfr：Fairchild Semiconductor
- Package：Bulk
- Function：Step-Up
- Output Configuration：Positive
- Topology：Boost
- Output Type：Fixed
- Number of Outputs：1
- Voltage - Input (Min)：2.7V
- Voltage - Input (Max)：4.5V
- Voltage - Output (Min/Fixed)：5.25V
- Voltage - Output (Max)：-
- Current - Output：1A
- Frequency - Switching：2.3MHz
- Synchronous Rectifier：Yes
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：9-UFBGA, WLCSP
- Supplier Device Package：9-WLCSP (1.22x1.22)
- Grade：-
- Qualification：-
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Overview
The FAN48615UC08X is a synchronous boost switching regulator IC manufactured by Fairchild Semiconductor. It provides a fixed positive output voltage of 5.25V with a maximum output current capability of 1A. The device operates with a switching frequency of 2.3MHz and features synchronous rectification for improved efficiency. It is housed in a compact 9-UFBGA, WLCSP package suitable for surface mount applications. The component supports an operating temperature range from -40°C to +85°C.
Feature Summary
- Synchronous rectification topology for enhanced power conversion efficiency
- Fixed output voltage regulation at 5.25V
- Compact wafer-level chip-scale packaging for space-constrained designs
Applications
- Portable electronic devices requiring step-up voltage regulation
- Battery-powered systems needing stable 5.25V supply rails
- Embedded circuits utilizing small form-factor power management solutions
Procurement Notes
Verify the manufacturer origin as Fairchild Semiconductor or onsemi, noting corporate acquisitions. Confirm the specific suffix UC08X corresponds to the 5.25V fixed output variant. Ensure the package type matches the 9-pin WLCSP specification. Check RoHS compliance status against current regulatory requirements before finalizing procurement orders.
Selection Notes
Select this component when a fixed 5.25V output is required with up to 1A load capacity. The 2.3MHz switching frequency allows for smaller external passive components compared to lower-frequency alternatives. The synchronous design is preferred for applications prioritizing thermal performance and energy efficiency within limited board space constraints.
Part Context
This part belongs to the TinyBoost family of synchronous boost regulators designed for low-power portable applications. It integrates the control logic and power switches into a minimal footprint. The series targets consumer electronics where size reduction and battery life extension are critical design parameters.
Replacement Considerations
Consult official substitution guides for equivalent synchronous boost regulators with similar voltage and current ratings. Verify pin compatibility and thermal characteristics if replacing with parts from different manufacturers.
