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FAN53555BUC24X 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 FAN53555BUC24X
- 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)：0.603V
- Voltage - Output (Max)：1.42V
- 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 FAN53555BUC24X
Voltage Regulators - DC DC Switching Regulators Overview
The FAN53555BUC24X is a synchronous step-down switching regulator from onsemi's TinyBuck series, housed in a 20-WLCSP package. It operates with an input voltage range of 2.5 V to 5.5 V and delivers a programmable output voltage between 0.603 V and 1.42 V. The device supports a maximum output current of 4 A at a fixed switching frequency of 2.4 MHz. It functions within an ambient temperature range of -40°C to +85°C.
Voltage Regulators - DC DC Switching Regulators Feature Summary
- Integrates synchronous rectification for high efficiency in a compact footprint.
- Features digitally programmable output voltage control via I2C interface.
- Includes comprehensive protection mechanisms such as over-current and thermal shutdown.
Voltage Regulators - DC DC Switching Regulators Applications
- Cloud systems computing power distribution
- Portable electronic devices requiring efficient DC-DC conversion
- Embedded systems with strict size constraints
Voltage Regulators - DC DC Switching Regulators Procurement Notes
Verify the specific suffix code against official datasheets to confirm output voltage limits and current ratings. Confirm RoHS compliance status and moisture sensitivity level prior to integration. Check for obsolescence notices or product change notifications that may affect long-term availability.
Voltage Regulators - DC DC Switching Regulators Selection Notes
Select this component when a 4 A output capability is required within a minimal board area. Ensure the application environment stays within the specified -40°C to +85°C operating range. Verify that the I2C interface compatibility matches the system controller requirements.
Voltage Regulators - DC DC Switching Regulators Part Context
This part belongs to the FAN53555 family of TinyBuck regulators designed for space-constrained applications. It shares architectural similarities with other variants in the series but differs in output current specifications and voltage ranges based on the specific suffix designation.
Voltage Regulators - DC DC Switching Regulators Replacement Considerations
Consult official substitution guides for compatible parts within the same family. Verify pinout and electrical parameter compatibility before replacing obsolete units.
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