FAN53565UC03X

$0.37

Description：IC REG BUCK PROGRAMMABLE 5A
Series：TinyBuck®
Mfr：Fairchild Semiconductor
Package：Bulk

SKU:ee1e62ee7358 Category: Voltage Regulators - DC DC Switching Regulators Brand: Fairchild Semiconductor

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Product introduction

FAN53565UC03X 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 PROGRAMMABLE 5A. Review the specifications below when checking this part for your BOM.

Voltage Regulators - DC DC Switching Regulators specifications for FAN53565UC03X

Description：IC REG BUCK PROGRAMMABLE 5A
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)：-
Voltage - Output (Max)：-
Current - Output：5A
Frequency - Switching：2.4MHz
Synchronous Rectifier：-
Operating Temperature：-40°C ~ 85°C
Mounting Type：-
Package / Case：-
Supplier Device Package：-
Grade：-
Qualification：-

Voltage Regulators - DC DC Switching Regulators datasheet and documents for FAN53565UC03X

FAN53565UC03X

Voltage Regulators - DC DC Switching Regulators Overview

The FAN53565UC03X is a synchronous step-down DC-DC converter from the TinyBuck family, manufactured by Fairchild Semiconductor (now onsemi). It features a digitally programmable output voltage via an I2C-compatible interface. The device supports up to 1.5 A load current with a fixed switching frequency of 3 MHz. Input voltage ranges from 2.7 V to 5.5 V, while the output is adjustable from 0.75 V to 1.975 V in 25 mV steps. It utilizes a 12-bump CSP package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Digital I2C-compatible interface for programmable output voltage
Synchronous rectification for high efficiency
Smooth transition between PWM and PFM modes
Ultra-fast transient response capability

Voltage Regulators - DC DC Switching Regulators Applications

Cell phones and smart phones
Netbooks and ultra-mobile PCs
SmartReflex-compliant power supplies
Mobile graphic processors

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for recent Product Change Notifications regarding packaging or material updates. Ensure the specific suffix matches design requirements as variants may exist within the series.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this regulator for applications requiring digital control and small form factors. Compare against the FAN5355 series if lower current ratings suffice. Verify that the 3 MHz switching frequency aligns with EMI constraints and inductor availability. Ensure the I2C address configuration meets system bus requirements.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the TinyBuck series of power management ICs designed for portable electronics. It represents a shift towards digitally controlled power regulation, allowing dynamic voltage scaling. The series is widely used in mobile computing platforms where space and efficiency are critical constraints.