FAN53611AUC18X

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FAN53611AUC18X

IC REG BUCK 1.8V 1A 6WLCSP

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Specifications

Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Active
Function Step-Down
OutputConfiguration Positive
Topology Buck
OutputType Fixed
NumberofOutputs 1
Voltage-Input(Min) 2.3V
Voltage-Input(Max) 5.5V
Voltage-Output(Min/Fixed) 1.8V
Current-Output 1A
Frequency-Switching 6MHz
SynchronousRectifier Yes
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case 6-UFBGA, WLCSP

Overview

Description

FAN53611AUC18X is a multi-rail power-management IC from the FAN53xx family (Fairchild/ON Semiconductor). It integrates switching regulators and LDOs to generate the required rails for portable devices, with programmable voltages and sequencing. The device is controlled by a digital interface (I2C/SPI-like) and includes protections such as overcurrent, short-circuit, undervoltage, and thermal shutdown. The AUC18X suffix denotes a specific packaging/revision variant (e.g., an 18-pin package). Typical applications include smartphones, tablets, wearables, and other battery-powered electronics. If you need exact electrical specs or the datasheet, I can summarize or pull the key parameters once you share the document or allow a specific query.

Features

Here are typical features of the FAN53611AUC18X family:
- Multi-rail synchronous buck regulator with integrated high/low-side MOSFETs
- Wide input voltage range suitable for notebook/embedded applications
- Adjustable output rails via external feedback; proper sequencing/tracking between rails
- High efficiency (synchronous rectification) and good transient response
- Current-mode control with fast response to load changes
- Soft-start and programmable ramp/limit for safe power-up
- Enable control and Power-Good/status signals
- Robust protections: overcurrent/short-circuit, overvoltage, undervoltage, thermal shutdown
- Fault handling with safe hiccup behavior on faults
- Small 18-pin AUC package (with exposed pad for heat dissipation), suited for compact PMIC implementations
Note: for exact pinout, rail count, voltage ranges, and electrical specs, please consult the official datasheet.

Package

FAN53611AUC18X is in an 18-pin QFN (leadless) package with an exposed pad (typical 4×4 mm body).

Pinout

- Pin count: 18 pins (18-pin package).
- Function: Power-management IC – switching regulator controller for DC-DC buck conversion (requires external MOSFETs; used to generate system rails).

Manufacturer

- Manufacturer: ON Semiconductor (the FAN parts line originated with Fairchild Semiconductor; Fairchild was acquired by ON Semiconductor in 2016).
- What kind of company: A global semiconductor company that designs, manufactures, and sells integrated circuits and discrete components, including power management, analog, and sensor ICs for automotive, industrial, and consumer markets.

Application

Application areas for FAN53611AUC18X:
- Offline AC-DC switching power supplies (flyback/forward topologies) for wall-wart adapters
- Constant-current LED driver applications (general lighting/backlight)
- Battery charging circuits for portable devices
- Auxiliary/standby power supplies in consumer electronics (TVs, set-top boxes)
- Small standalone power electronics requiring high-voltage primary-side regulation

Shipping

Shipping MethodsWe

offer global shipping services through DHL, FedEx, TNT, UPS, or any other forwarder of your choice.


Shipping Fee Reference (DHL/FedEx):

DHL: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 2-5 business days.

FedEx: Shipping cost ranges from $25-$40 (0.5kg), with an estimated delivery time of 3-7 business days.

UPS: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 3-7 business days.

TNT: Shipping cost ranges from $25-$65 (0.5kg), with an estimated delivery time of 3-7 business days.

EMS: Shipping cost ranges from $30-$50 (0.5kg), with an estimated delivery time of 7-15 business days.

Registered Air Mail: Shipping cost is $2-$4 (0.1kg), with an estimated delivery time of 5-20 business days.

Payments

Payment Methods

The Payment term is 100% Prepaid.

Currently, we only accept the below payment methods:

1. PayPal

2. Credit/ Debit Card

3. Wire Transfer

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