FAN53555BUC08X

$0.40

Description：IC REG BUCK PROG 4A 20WLCSP
Series：TinyBuck®
Mfr：Fairchild Semiconductor
Package：Bulk

SKU:258ec0e84f16 Category: Voltage Regulators - DC DC Switching Regulators Brand: Fairchild Semiconductor

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Product introduction

FAN53555BUC08X 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 FAN53555BUC08X

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 FAN53555BUC08X

FAN53555BUC08X

Voltage Regulators - DC DC Switching Regulators Overview

The FAN53555BUC08X is a digitally programmable synchronous buck switching regulator 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 output current. The device features a fixed output voltage of 1.15 V and a switching frequency of 2.4 MHz. Packaged in a compact 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

Digitally programmable architecture enabling precise voltage configuration via I2C interface
Synchronous rectification topology for enhanced power conversion efficiency
Compact WLCSP package design optimized for space-constrained mobile applications

Voltage Regulators - DC DC Switching Regulators Applications

Portable computing devices requiring efficient core voltage regulation
Mobile communication equipment needing high-density power management
Embedded systems utilizing low-profile surface-mount components

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify component authenticity through authorized distributors due to potential obsolescence status. Confirm RoHS compliance and moisture sensitivity levels prior to assembly. Review datasheet revisions for any parameter updates or pinout changes that may affect integration into existing designs.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this regulator when a fixed 1.15 V output is required alongside high current capability. Ensure the application board layout accommodates the specific thermal requirements of the WLCSP package. Verify compatibility with the system's I2C bus speeds for digital programming operations.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the TinyBuck family of power management integrated circuits. It represents a transition from Fairchild Semiconductor to onsemi branding while maintaining established performance specifications for portable electronics.