FAN53611AUC135X

$0.32

Description：IC REG BUCK 1.35V 1A 6WLCSP
Series：-
Mfr：Fairchild Semiconductor
Package：Bulk

SKU:91599e524f2e Category: Voltage Regulators - DC DC Switching Regulators Brand: Fairchild Semiconductor

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Product introduction

FAN53611AUC135X 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 1.35V 1A 6WLCSP. Review the specifications below when checking this part for your BOM.

Voltage Regulators - DC DC Switching Regulators specifications for FAN53611AUC135X

Description：IC REG BUCK 1.35V 1A 6WLCSP
Series：-
Mfr：Fairchild Semiconductor
Package：Bulk
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Output Type：Fixed
Number of Outputs：1
Voltage - Input (Min)：2.3V
Voltage - Input (Max)：5.5V
Voltage - Output (Min/Fixed)：1.35V
Voltage - Output (Max)：-
Current - Output：1A
Frequency - Switching：6MHz
Synchronous Rectifier：Yes
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：6-UFBGA, WLCSP
Supplier Device Package：6-WLCSP (1.23x0.88)
Grade：-
Qualification：-

Voltage Regulators - DC DC Switching Regulators datasheet and documents for FAN53611AUC135X

FAN53611AUC135X

Voltage Regulators - DC DC Switching Regulators Overview

The FAN53611AUC135X is a synchronous buck regulator from the FAN53601/11 series, manufactured by onsemi (formerly Fairchild Semiconductor). It provides a fixed output voltage of 1.35 V with a maximum output current capability of 1 A. The device operates within an input voltage range of 2.3 V to 5.5 V and utilizes a 6 MHz fixed-frequency switching architecture. Packaged in a compact 6-bump WLCSP with 0.4 mm pitch, it features low quiescent current and integrated protection mechanisms including thermal shutdown and overload protection.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Synchronous rectification architecture for high efficiency
Fixed 6 MHz switching frequency operation
Integrated soft-start and input under-voltage lockout
Thermal shutdown and overload protection

Voltage Regulators - DC DC Switching Regulators Applications

Data Cards
Tablets
Netbooks
Ultra-Mobile PCs

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify component authenticity through authorized onsemi distributors or certified partners. Confirm that the received part matches the specific suffix designation for the 1.35 V output variant. Check manufacturing date codes against obsolescence notices, as this family may have end-of-life status. Ensure storage conditions comply with moisture sensitivity level requirements prior to reflow soldering.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 1.35 V rail is required for digital logic or memory interfaces. The 1 A current rating suits moderate load applications. Consider the 6 MHz frequency for smaller passive component sizes compared to lower-frequency alternatives. Verify that the system input voltage remains within the 2.3 V to 5.5 V operational window for reliable regulation.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the FAN53611 series of TinyBuck synchronous regulators. It shares architectural similarities with the FAN53611AUC12X (1.2 V) and FAN53611AUC11X (1.1 V) variants. The primary distinction lies in the fixed output voltage setting. All variants share the same 6 WLCSP package and electrical characteristics regarding input range and switching frequency.