onsemi FAN53880UC002X

Overview

FAN53880UC002X from onsemi is a low-quiescent-current PMIC integrating one buck converter, one boost converter, and four low-noise LDO regulators. The device is designed for mobile and camera-oriented power systems that need several programmable rails from a 2.5V to 5.5V input supply.

As part of the onsemi FAN53880 family, FAN53880UC002X provides digitally programmable buck, boost, and LDO voltages, startup and shutdown sequencing, soft-start inrush control, fault protection with interrupt reporting, and a 25-bump WLCSP package. For engineers reviewing the FAN53880UC002X datasheet, FAN53880UC002X pinout, FAN53880UC002X application, or FAN53880UC002X equivalent, this device is widely used in smartphones, tablets, compact camera modules, USB On-The-Go systems, portable multimedia devices, and mobile embedded platforms.

Technical Context

In mobile power systems, FAN53880UC002X operates as a six-rail PMIC. The buck regulator supplies a programmable low-voltage rail, the boost regulator generates a higher rail, and four low-noise LDOs supply sensor, analog, camera, or peripheral loads.

The buck and boost converters operate from 2.5V to 5.5V inputs and automatically use PFM at moderate or light loads and PWM at higher loads, balancing efficiency and transient response across changing mobile workloads.

FAN53880UC002X is especially useful in camera and portable platforms because programmable sequencing, soft-start, and interrupt-based fault reporting allow several rails to be brought up and monitored in a controlled manner.

Key Specifications

Pinout & Package

The FAN53880UC002X pinout includes buck and boost power pins, four LDO outputs, digital control pins, interrupt/fault signaling, input supply pins, and WLCSP ground connections.

For PCB design, buck and boost inductors and capacitors should be placed close to the WLCSP, LDO output capacitors should be near the relevant pins, and digital control lines should be isolated from switching nodes.

Key Features

• One buck, one boost, and four LDOs support six regulated rails.
• Programmable output voltages support flexible mobile platforms.
• PFM/PWM operation balances efficiency and transient response.
• Soft-start reduces inrush current.
• Fault protection reports UVLO, OCP, OVP, UVP, and OTP conditions.
• WLCSP25 package supports compact mobile layouts.

Applications

Equivalent & Alternatives

When evaluating a FAN53880UC002X equivalent, engineers should compare buck current, boost current, LDO count and current, programmable sequencing, digital interface, fault reporting, WLCSP package, and mobile platform requirements.

Compared with FAN53880UC001X, FAN53880UC002X should be selected according to orderable status, register defaults, and platform configuration. FAN53880UC002X vs LP873347RHDR selection depends on whether the design needs a boost rail and four LDO outputs or a dual-buck/dual-LDO processor PMIC.

Quality

FAN53880UC002X should be sourced as original onsemi components through traceable supply channels. Quality checks may include WLCSP inspection, marking validation, solderability and assembly review, and electrical verification of buck, boost, and LDO outputs.

Production validation should include programmed voltage settings, sequencing timing, soft-start behavior, fault interrupt reporting, LDO noise, switching efficiency, and thermal behavior in the mobile PCB layout.

Availability

FAN53880UC002X available at Aetrix Electronics and is suitable for mobile, camera, USB OTG, tablet, and portable multimedia systems requiring compact programmable PMIC supply support.

Supply support may include volume procurement planning, scheduled delivery arrangements, traceable sourcing management, and long-term supply support for OEM, industrial electronics, automotive electronics, and embedded product programs. Sample and NPI supply support, as well as urgent in-stock supply support, can also be arranged for prototype builds, pilot runs, and time-critical production needs.

For production builds, confirming ordering status, WLCSP assembly capability, rail configuration, register defaults, lifecycle status, and sourcing continuity helps reduce procurement risk.

Manufacturer

onsemi is a semiconductor manufacturer specializing in power management, intelligent sensing, analog, discrete, automotive, industrial, and energy-efficient electronic solutions.

The FAN53880 product family is an onsemi mobile PMIC series integrating one buck converter, one boost converter, and four low-noise LDO regulators with programmable sequencing and fault reporting.

FAQ

What is FAN53880UC002X used for?

FAN53880UC002X is used for smartphones, tablets, compact camera modules, USB On-The-Go systems, and portable multimedia devices requiring programmable multi-rail power.

Where can I find the FAN53880UC002X datasheet download?

The FAN53880UC002X datasheet is available from onsemi and includes converter ratings, register details, sequencing, protection behavior, package data, and ordering information.

What should be considered in FAN53880UC002X pinout design?

Designers should place buck and boost inductors close to the WLCSP, keep switching nodes compact, and place LDO capacitors near their pins.

How many regulators does FAN53880UC002X include?

It includes one buck converter, one boost converter, and four LDO regulators.

What are common FAN53880UC002X equivalent solutions?

Common candidates include FAN53880UC001X and LP873347RHDR depending on rail structure, boost requirement, LDO count, package, and interface needs.