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FAN53555UC08X is listed in the Voltage Regulators - DC DC Switching Regulators range at ChipApex. The manufacturer field lists Fairchild Semiconductor. Its product description is IC REG BUCK PROG 4A 20WLCSP. Review the specifications below when checking this part for your BOM.
Voltage Regulators - DC DC Switching Regulators specifications for FAN53555UC08X
- Description：IC REG BUCK PROG 4A 20WLCSP
- Series：TinyBuck®
- Mfr：Fairchild Semiconductor
- Package：Bulk
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Programmable
- Number of Outputs：1
- Voltage - Input (Min)：2.5V
- Voltage - Input (Max)：5.5V
- Voltage - Output (Min/Fixed)：0.6V
- Voltage - Output (Max)：1.23V
- Current - Output：4A
- Frequency - Switching：2.4MHz
- Synchronous Rectifier：Yes
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：20-UFBGA, WLCSP
- Supplier Device Package：20-WLCSP (1.96x1.56)
- Grade：-
- Qualification：-
Voltage Regulators - DC DC Switching Regulators datasheet and documents for FAN53555UC08X
Voltage Regulators - DC DC Switching Regulators Overview
The FAN53555UC08X is a synchronous step-down DC-DC converter manufactured by onsemi, formerly Fairchild Semiconductor. It operates with an input voltage range of 2.5 V to 5.5 V and delivers up to 5 A of output current. The device features a fixed switching frequency of 2.4 MHz and provides a digitally programmable output voltage ranging from 600 mV to 1.23 V. Packaged in a 20-WLCSP (1.96x1.56 mm) format, it supports surface mount installation and functions within a temperature range of -40°C to +85°C.
Voltage Regulators - DC DC Switching Regulators Feature Summary
- Synchronous buck topology for high efficiency
- Digitally programmable output voltage via I2C interface
- Fixed 2.4 MHz switching frequency enables compact passive components
Voltage Regulators - DC DC Switching Regulators Applications
- Portable media players
- Smartphones and PDAs
- Digital cameras
Voltage Regulators - DC DC Switching Regulators Procurement Notes
Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and moisture sensitivity level prior to assembly. Review datasheet specifications for thermal management requirements and soldering profiles specific to the WLCSP package type.
Voltage Regulators - DC DC Switching Regulators Selection Notes
Select this regulator when space-constrained designs require high current density in a minimal footprint. The 2.4 MHz frequency allows for smaller inductors compared to lower-frequency alternatives. Ensure the application load profile remains within the 5 A continuous current limit and that the input supply voltage stays within the specified 2.5 V to 5.5 V operating window.
Voltage Regulators - DC DC Switching Regulators Part Context
This component belongs to the TinyBuck family of power management integrated circuits designed for portable electronics. It integrates power switches and control logic into a single chip, reducing external component count. The series is optimized for applications requiring fast transient response and high efficiency across varying load conditions.
Voltage Regulators - DC DC Switching Regulators Replacement Considerations
Check for pin-compatible alternatives within the same product family. Verify if newer revisions offer improved thermal performance or updated packaging options while maintaining identical electrical characteristics and software compatibility.
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