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Product Detailed Parameters
- Description：IC REG BOOST 5.4V 1A 9WLCSP
- Series：TinyBoost®
- Mfr：onsemi
- Package：Tape & Reel (TR),Cut Tape (CT)
- 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)：5.4V
- 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 FAN48615UC11X is a fixed-output synchronous TinyBoost regulator manufactured by onsemi. It operates within an input voltage range of 2.3 V to 5.5 V and provides a fixed output of 5.4 V with a maximum output current of 1 A. The device features a switching frequency of 3 MHz, enabling the use of small external components. It is housed in a compact 9-ball WLCSP package. Key electrical specifications include a quiescent current of 37 uA and a shutdown current of 60 uA. The component supports operation across a temperature range from -40°C to +85°C.
Feature Summary
- Synchronous boost topology for high efficiency
- Fixed 5.4 V output configuration
- Compact 9-ball WLCSP packaging
- Integrated shutdown control
Applications
- Portable electronic devices requiring efficient power conversion
- Battery-powered systems needing step-up regulation
- Space-constrained circuit designs utilizing WLCSP packages
Procurement Notes
Verify the specific suffix UC11X against official datasheets to confirm pinout and electrical characteristics. Confirm RoHS compliance status through manufacturer documentation. Check for obsolescence notices or lifecycle changes directly from onsemi before finalizing procurement plans.
Selection Notes
Select this component when a fixed 5.4 V output is required from a single-cell lithium battery or similar low-voltage source. The 3 MHz switching frequency allows for smaller inductors compared to lower-frequency alternatives. Ensure the application fits within the specified thermal and current limits of the WLCSP-9 package.
Part Context
This part belongs to the FAN486x series of TinyBoost regulators from onsemi. These devices are designed for portable applications where space and efficiency are critical. The series typically includes variants with different fixed output voltages and current capabilities, all sharing similar compact packaging and control architectures.
Replacement Considerations
Check for direct substitutes within the FAN486x family that offer compatible output voltages and currents. Verify pin-to-pin compatibility if replacing in existing designs. Consult onsemi for updated recommendations if this specific part number is discontinued.
