Analog Devices Inc. LT3383HUJM#PBF

Overview

LT3383HUJM#PBF from Analog Devices is a multioutput power-management solution integrating four synchronous step-down DC/DC converters and three 300mA LDO regulators. The device is designed for advanced application processor, SoC, automotive, industrial, and communication systems that require multiple high-efficiency rails plus low-noise analog supplies in one compact PMIC.

As part of the LT3383 product family, LT3383HUJM#PBF combines two 2.5A buck regulators, two 1.5A buck regulators, three 300mA LDOs, 2.25MHz switching, independent enable pin-strap sequencing, power-good status, low standby current, and 150°C junction-temperature operation in a side-wettable 40-lead QFN package. For engineers reviewing the LT3383HUJM#PBF datasheet, LT3383HUJM#PBF pinout, LT3383HUJM#PBF application, or LT3383HUJM#PBF equivalent, this device is widely used in automotive processors, industrial control boards, communication modules, SoC power trees, low-noise analog rails, and general multichannel embedded power supplies.

Technical Context

In processor-based systems, LT3383HUJM#PBF operates as a seven-rail PMIC. Four synchronous buck converters supply high-efficiency core, memory, I/O, and SoC rails, while three 300mA LDO regulators provide lower-noise supplies for analog, RF, or peripheral functions.

The 2.25MHz switching frequency allows small inductors and capacitors around each buck rail. Independent enable pins let designers create pin-strapped startup sequences by linking regulator outputs to enable inputs in the required order.

LT3383HUJM#PBF is commonly used where multiple rails, power-good monitoring, 12uA standby current, wettable-flank QFN inspection, and high-temperature automotive operation are needed in a compact power-management IC.

Key Specifications

Pinout & Package

The LT3383HUJM#PBF pinout includes buck input pins, switch nodes, feedback pins, LDO inputs and outputs, enable pins, master power-on control, status output, and ground/thermal connections.

For PCB design, each buck switching loop should be kept compact, LDO outputs should use close local capacitors, and enable-sequencing traces should be routed clearly to preserve the intended startup order.

Key Features

• Four buck regulators and three LDOs support seven rails.
• 2.5A and 1.5A buck outputs cover processor rail needs.
• 300mA LDOs provide low-noise analog supplies.
• 2.25MHz switching reduces passive size.
• Pin-strap sequencing supports rail-order control.
• 150°C H-grade operation supports automotive environments.

Applications

Equivalent & Alternatives

When evaluating a LT3383HUJM#PBF equivalent, engineers should compare buck count, output current, LDO count, sequencing method, power-good behavior, package, standby current, and high-temperature rating.

Compared with ADP5054ACPZ-R7, LT3383HUJM#PBF provides a seven-rail architecture with four bucks and three 300mA LDOs. LT3383HUJM#PBF vs TPS6508641RSKR selection depends on rail count, control method, processor platform, temperature grade, and package constraints.

Quality

LT3383HUJM#PBF should be sourced as original Analog Devices components through traceable supply channels. Quality checks may include side-wettable QFN inspection, top-mark validation, solderability testing, and verification of all buck and LDO rails.

Production validation should include startup sequencing, power-good/status behavior, buck load transients, LDO noise, standby current, thermal performance, and high-temperature operating margin.

Availability

LT3383HUJM#PBF available at Aetrix Electronics and is suitable for automotive, industrial, communication, SoC, and multichannel embedded power systems requiring stable multi-rail 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 package, H-grade temperature requirement, rail-current budget, sequencing plan, lifecycle status, and sourcing continuity helps reduce procurement risk.

Manufacturer

Analog Devices is a global semiconductor manufacturer specializing in analog ICs, power management, mixed-signal products, data converters, RF solutions, sensors, and embedded signal-chain technologies for industrial, communication, automotive, healthcare, and consumer applications.

The LT3383 product family is an Analog Devices multioutput PMIC series integrating four synchronous buck converters and three LDO regulators for processor-based automotive, industrial, and communication systems.

FAQ

What is LT3383HUJM#PBF used for?

LT3383HUJM#PBF is used for automotive processors, industrial control boards, communication modules, SoC power trees, and multichannel embedded power supplies.

Where can I find the LT3383HUJM#PBF datasheet download?

The LT3383HUJM#PBF datasheet is available from Analog Devices and includes regulator ratings, sequencing guidance, package data, pin functions, and application circuits.

How many outputs does LT3383HUJM#PBF include?

It includes four synchronous buck outputs and three 300mA LDO outputs.

What should be considered in LT3383HUJM#PBF pinout design?

Designers should keep each buck switching loop compact, route LDO rails quietly, and implement the enable pin-strap sequencing carefully.

What are common LT3383HUJM#PBF equivalent solutions?

Common candidates include ADP5054ACPZ-R7 and TPS6508641RSKR depending on rail count, control method, package, and temperature needs.