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Product Detailed Parameters
- Description：IC REG BOOST 3.3V 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)：2.5V
- Voltage - Input (Max)：4.8V
- Voltage - Output (Min/Fixed)：3.3V
- Voltage - Output (Max)：-
- Current - Output：1A (Switch)
- Frequency - Switching：2.5MHz
- 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 FAN48610BUC33X is a synchronous boost switching regulator from onsemi’s TinyBoost family. It operates with an input voltage range of 2.5 V to 4.5 V and provides a fixed 3.3 V output at up to 1 A. The device integrates a 2.5 MHz fixed-frequency PWM controller, enabling the use of small external components. Key electrical specifications include a typical quiescent current of 48 uA and a shutdown supply current of less than 1 uA. It functions within an ambient temperature range of -40°C to +85°C and is housed in a compact 9-pin WLCSP package.
Feature Summary
- Synchronous step-up topology for high efficiency
- Fixed 2.5 MHz switching frequency minimizes passive component size
- Integrated shutdown control for power management
- Compact wafer-level chip-scale packaging
Applications
- Portable consumer electronics
- Mobile communication devices
- Battery-powered instrumentation
Procurement Notes
Verify the specific suffix 'B' against the official datasheet to confirm pinout and electrical tolerances. Confirm RoHS compliance status through the manufacturer's latest documentation. Check for obsolescence notices or lifecycle changes directly from onsemi before finalizing procurement plans.
Selection Notes
Select this component when a fixed 3.3V rail is required from a single-cell lithium battery or similar low-voltage source. The fixed frequency simplifies EMI filtering design compared to adjustable regulators. Ensure the application requires synchronous rectification for improved light-load efficiency.
Part Context
This part belongs to the TinyBoost series, designed for space-constrained portable applications. It complements other onsemi PMICs by offering a dedicated, high-efficiency boost solution without requiring complex external feedback networks.
Replacement Considerations
Consult the onsemi TinyBoost product line for alternatives with different output voltages or current ratings. Verify pin compatibility if substituting with other WLCSP-9 regulators.
