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Product Detailed Parameters
- Description：IC REG BOOST PROG 1.5A 16WLCSP
- Series：TinyBoost®
- Mfr：Fairchild Semiconductor
- Package：Bulk
- Function：Step-Up
- Output Configuration：Positive
- Topology：Boost
- Output Type：Programmable
- Number of Outputs：1
- Voltage - Input (Min)：2.35V
- Voltage - Input (Max)：5.5V
- Voltage - Output (Min/Fixed)：3.5V, 3.7V
- Voltage - Output (Max)：-
- Current - Output：1.5A (Switch)
- Frequency - Switching：2.5MHz
- Synchronous Rectifier：Yes
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：16-UFBGA, WLCSP
- Supplier Device Package：16-WLCSP (1.78x1.78)
- Grade：-
- Qualification：-
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Overview
The FAN48630UC35X is a synchronous TinyBoost regulator manufactured by onsemi, designed for GSM power amplifier supply applications. It operates with an input voltage range of 2.35 V to 5.5 V and provides a fixed output voltage of 3.5 V or 3.7 V. The device supports a pulsed load current of 1.5 A at a switching frequency of 2.5 MHz. It features a bypass mode for low-noise operation and is housed in a compact 16-WLCSP package measuring 1.78x1.78 mm. The component functions within a temperature range of -40°C to +85°C.
Feature Summary
- Synchronous boost topology optimized for high-efficiency pulsed-load performance
- Integrated bypass mode for low-noise linear regulation during standby
- Compact WLCSP footprint suitable for space-constrained mobile designs
Applications
- GSM power amplifier supply
- Mobile phone power management
- Portable electronic devices requiring efficient step-up conversion
Procurement Notes
Verify the manufacturer status carefully as this component may be subject to end-of-life notices. Confirm availability through authorized distributors only, as stock levels fluctuate rapidly. Ensure the specific suffix matches the required output voltage variant. Check RoHS compliance documentation before integration into new production runs.
Selection Notes
Select this regulator when a compact solution is needed for GSM PA biasing. Compare output current capabilities against peak transmitter requirements. Evaluate thermal performance within the small WLCSP package. Consider the bypass mode feature if line noise sensitivity is critical for the application.
Part Context
This part belongs to the TinyBoost family of synchronous regulators from onsemi. It shares architectural similarities with other models in the series but differs in fixed output voltage settings and specific load current ratings. The family targets portable communication devices requiring efficient power conversion in minimal board space.
Replacement Considerations
FAN48630UC33X: Offers a 3.3V output instead of 3.5V/3.7V. FAN48630UC50X: Provides a higher 5V/5.29V output. Verify pin compatibility and output voltage requirements before substituting.
