FAN5355UC02X

$0.69

Description：IC REG BUCK PROG 800MA 12WLCSP
Series：-
Mfr：Fairchild Semiconductor
Package：Bulk

SKU:cfa318a27b3f Category: Voltage Regulators - DC DC Switching Regulators Brand: Fairchild Semiconductor

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Product introduction

FAN5355UC02X 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 800MA 12WLCSP. Review the specifications below when checking this part for your BOM.

Voltage Regulators - DC DC Switching Regulators specifications for FAN5355UC02X

Description：IC REG BUCK PROG 800MA 12WLCSP
Series：-
Mfr：Fairchild Semiconductor
Package：Bulk
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Output Type：Programmable
Number of Outputs：1
Voltage - Input (Min)：2.7V
Voltage - Input (Max)：5.5V
Voltage - Output (Min/Fixed)：0.75V
Voltage - Output (Max)：1.44V
Current - Output：800mA
Frequency - Switching：3MHz
Synchronous Rectifier：Yes
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：12-UFBGA, WLCSP
Supplier Device Package：12-WLCSP (2.23x1.46)
Grade：-
Qualification：-

Voltage Regulators - DC DC Switching Regulators datasheet and documents for FAN5355UC02X

FAN5355UC02X

Voltage Regulators - DC DC Switching Regulators Overview

The FAN5355UC02X is a synchronous step-down DC-DC converter from the TinyBuck family, manufactured by Fairchild Semiconductor. It supports output currents of up to 800mA or 1A and operates with an input voltage range of 2.7V to 5.5V. The device features digitally programmable output voltages ranging from 0.75V to 1.975V via a 6-bit or 7-bit interface. It utilizes a fixed-frequency operation at 3MHz, enabling the use of small inductors such as 1μH. The regulator achieves high efficiency of 91% and includes a low-ripple PFM mode for light loads.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Synchronous step-down topology optimized for low-power applications using small, low-cost passive components
Digital programmability allowing software-selectable output voltage adjustment within specified ranges
High-efficiency performance with smooth transition between PWM and PFM modes to minimize quiescent current
I2C-compatible interface supporting fast communication speeds for dynamic voltage scaling

Voltage Regulators - DC DC Switching Regulators Applications

SmartReflex-compliant power supply systems
Split supply DSPs and microprocessor solutions including OMAP and XSCALE architectures
Portable consumer electronics such as cell phones, smart phones, PDAs, and digital cameras
Handset graphic processors requiring efficient power management

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm package integrity and moisture sensitivity level prior to assembly. Ensure compliance with RoHS and REACH regulations as specified in the datasheet. Cross-reference ordering suffixes to match exact electrical characteristics and packaging requirements.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this model when designing circuits requiring compact footprints and high efficiency at moderate load currents. The 3MHz switching frequency allows for smaller external inductors compared to lower-frequency alternatives. Consider the I2C interface requirements for system integration and ensure the input voltage range aligns with the power source availability.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the TinyBuck series of digitally programmable regulators designed for portable devices. It represents a solution for managing power in mobile platforms where space constraints and battery life are critical factors. The technology integrates control logic and power switches into a single compact package.