FAN53611AUC11X

$0.48

Description：SWITCHING REGULATOR, VOLTAGE-MOD
Series：*
Mfr：Fairchild Semiconductor
Package：Bulk

SKU:74ac7ca2b5ab Category: Voltage Regulators - DC DC Switching Regulators Brand: Fairchild Semiconductor

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Product introduction

FAN53611AUC11X is listed in the Voltage Regulators - DC DC Switching Regulators range at ChipApex. The manufacturer field lists Fairchild Semiconductor. Its product description is SWITCHING REGULATOR, VOLTAGE-MOD. Review the specifications below when checking this part for your BOM.

Voltage Regulators - DC DC Switching Regulators specifications for FAN53611AUC11X

Description：SWITCHING REGULATOR, VOLTAGE-MOD
Series：*
Mfr：Fairchild Semiconductor
Package：Bulk
Function：-
Output Configuration：-
Topology：-
Output Type：-
Number of Outputs：-
Voltage - Input (Min)：-
Voltage - Input (Max)：-
Voltage - Output (Min/Fixed)：-
Voltage - Output (Max)：-
Current - Output：-
Frequency - Switching：-
Synchronous Rectifier：-
Operating Temperature：-
Mounting Type：-
Package / Case：-
Supplier Device Package：-
Grade：-
Qualification：-

Voltage Regulators - DC DC Switching Regulators datasheet and documents for FAN53611AUC11X

FAN53611AUC11X

Voltage Regulators - DC DC Switching Regulators Overview

The FAN53611AUC11X is a synchronous step-down switching voltage regulator manufactured by Fairchild Semiconductor, now part of ON Semiconductor. It operates with a fixed 6 MHz switching frequency and provides a fixed output voltage of 1.1 V. The device supports an input voltage range from 2.3 V to 5.5 V and delivers a maximum output current of 1 A. It features a typical quiescent current of 24 µA and utilizes Pulse Width Modulation (PWM) control. The component is housed in a compact 6-bump Wafer Level Chip Scale Package (WLCSP) with a 0.4 mm pitch.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Synchronous rectification architecture ensures high efficiency across load ranges
Fixed 6 MHz operation enables the use of small external components
Low ripple light-load PFM mode optimizes efficiency at low currents
Integrated thermal shutdown and overload protection for system reliability

Voltage Regulators - DC DC Switching Regulators Applications

3G, 4G, WiFi, WiMAX, and WiBro data cards
Tablets and ultra-mobile PCs
Digital still cameras (DSC) and digital video cameras (DVC)

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the manufacturer status as Fairchild Semiconductor products are now managed under the ON Semiconductor brand. Confirm the specific suffix indicates the 1.1 V fixed output variant. Check for RoHS compliance documentation and ensure the package matches the 6-bump WLCSP specification. Validate that the source document explicitly lists this part number to avoid confusion with similar variants like the FAN53611AUC123X.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 1.1 V rail is required for portable electronics. The 6 MHz frequency allows for smaller inductors compared to lower-frequency regulators. Ensure the application load does not exceed 1 A. Consider the 2.3 V minimum input voltage constraint against the system battery profile. Verify that the WLCSP package size fits the board layout constraints.

Voltage Regulators - DC DC Switching Regulators Part Context

This regulator belongs to the FAN53601/11 family of TinyBuck synchronous buck converters. The family offers 600 mA and 1 A options with identical pinouts and control architectures. The FAN53611 specifically denotes the 1 A current capability version. These devices are designed for space-constrained mobile applications requiring high efficiency and fast transient response.