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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Voltage Regulators - Linear + Switching

Analog Devices Inc. LTC3446EDE#PBF

Name: LTC3446EDE#PBF
Brand: Analog Devices Inc.
SKU: LTC3446EDE#PBF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: LTC3446EDE#PBF

Manufacturer:: Analog Devices Inc.

Category:: Voltage Regulators - Linear + Switching

Package:: 14-WFDFN Exposed Pad

Datasheet:: LTC3446EDE#PBF.pdf

Description:: IC REG TRIPLE BCK/LNR SYNC 14DFN

Quantity:: RFQ Add To RFQ list

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Inventory:581

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Product details

Overview

LTC3446EDE#PBF from Analog Devices is a multi-output power-management IC designed for portable and handheld systems requiring efficient buck regulation and integrated LDO rails.

As a portable multi-output pmic solution, LTC3446EDE#PBF supports step-down regulation, LDO regulation, power sequencing, enable control, and compact external components. For engineers reviewing the LTC3446EDE#PBF datasheet, LTC3446EDE#PBF pinout, LTC3446EDE#PBF application, or LTC3446EDE#PBF equivalent, this device is suitable for portable electronics, handheld instruments, media devices, sensor systems, and compact embedded modules.

Technical Context

In embedded electronic systems, LTC3446EDE#PBF typically operates as a dedicated regulator or PMIC that converts an available system input into one or more regulated rails.

The device architecture helps engineers manage power conversion efficiency, thermal performance, rail sequencing, output accuracy, and board-level reliability. PCB designers should verify input range, load-current budget, output-voltage configuration, thermal behavior, and layout guidance directly against the datasheet before production release.

LTC3446EDE#PBF is commonly used in industrial controllers, communication modules, portable instruments, processor boards, sensor platforms, and compact embedded devices.

Key Specifications

Parameter	Value and Actual Design Meaning
Device Type	Portable multi-output PMIC
Input / Supply Range	Battery-oriented input range; verify exact limits in the datasheet.
Regulator Outputs	Multiple regulated outputs for system, I/O, analog, and auxiliary rails.
Switching / Control Behavior	High-efficiency buck conversion supports battery-powered operation.
Control and Monitoring	Enable, status, feedback, and monitoring functions support system-level power management.
Protection Features	Protection functions may include undervoltage lockout, current limiting, thermal shutdown, short-circuit protection, or fault reporting.
Package	DFN package option depending on suffix.
Operating Environment	Verify suffix-specific operating temperature range in the datasheet.

Pinout & Package

The LTC3446EDE#PBF pinout is optimized for compact power conversion, regulator feedback, enable control, status monitoring, and thermal grounding.

For PCB design, important practices include placing input/output capacitors close to the IC, using short high-current loops, routing feedback away from switching nodes, and connecting exposed pads to solid copper.

Pin / Function	PCB Design and Circuit Role
VIN / Supply Pins	Input supply connections supporting regulator power and internal control circuitry.
Switching Nodes	High-frequency switching connections that should use compact power-loop routing.
Output Pins	Regulated output connections supplying downstream processor, memory, analog, or system rails.
Feedback / Sense Pins	Regulation feedback or sense nodes requiring quiet routing away from switching noise.
Enable / Control Pins	Logic inputs supporting power sequencing, shutdown, mode control, or system management.
Power-Good / Reset / Status Pins	Monitoring outputs or status pins used for processor supervision and fault handling.
GND / Exposed Pad	Ground and thermal return path requiring low-impedance PCB copper connection.

Key Features

Integrated switching and LDO outputs support portable multi-rail systems.
Battery-oriented operation improves compact product design.
Enable and sequencing functions support controlled startup.
Small package and external components reduce PCB area.
Integrated protection and monitoring features support reliable embedded power operation.
Surface-mount package supports compact industrial, consumer, or communication-system PCB layouts.

Applications

Processor and Digital Systems

Industrial Embedded Electronics

Use Scenario: Used in processor, ASIC, FPGA, DSP, or embedded controller platforms.

IC Role: Provides regulated rails, sequencing, bias, or supervisory power functions.

Use Value: Helps reduce discrete regulator count and simplify compact power-tree design.

Use Scenario: Used in automation modules, gateways, control boards, measurement systems, and industrial communication devices.

IC Role: Supplies stable power to digital, analog, memory, or peripheral subsystems.

Use Value: Improves power integration, reliability, and repeatable production layout.

Portable and Consumer Products

Communication and Automotive-Style Platforms

Use Scenario: Used in battery-powered electronics, handheld instruments, smart devices, and compact modules.

IC Role: Manages efficient voltage conversion and low-power rail operation.

Use Value: Supports smaller PCB area, better efficiency, and improved thermal behavior.

Use Scenario: Used in networking modules, infotainment, automotive-style controllers, or connected edge devices.

IC Role: Provides robust conversion, monitoring, and system power management.

Use Value: Supports reliable operation across demanding supply and load conditions.

Equivalent & Alternatives

When evaluating a LTC3446EDE#PBF equivalent, engineers should compare regulator topology, number of outputs, output-current capability, output-voltage options, package footprint, thermal behavior, control interface, protection features, and long-term sourcing requirements.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ADP5023	ADI micro PMU with dual buck plus LDO architecture.	Used in compact portable power systems.	Compare rail structure, current rating, and package.
ADP5037	Four-output PMIC with two bucks and two LDOs.	Used when additional LDO rail capacity is required.	Choose based on rail count, noise, and current requirements.

Compared with ADP5023, LTC3446EDE#PBF is optimized for the exact suffix, package, or configuration required by the target power tree. LTC3446EDE#PBF vs ADP5037 selection depends on integration level, rail count, output-current budget, noise target, thermal design, and PCB area.

Quality

LTC3446EDE#PBF should be sourced as original Analog Devices components through traceable and controlled supply channels. Quality verification procedures may include package inspection, top-mark validation, solderability testing, moisture-sensitivity handling review, electrical output verification, and functional testing on the target PCB.

Because the device is used in power-management applications, production validation should include startup behavior, output accuracy, load-transient response, thermal performance, protection behavior, and layout-sensitive noise or ripple checks. Traceable sourcing helps maintain reliable long-term operation and reduce counterfeit supply-chain risk.

Availability

LTC3446EDE#PBF available at Aetrix Electronics and is suitable for embedded and industrial power-management platforms requiring stable component availability and repeatable production support.

Supply support may include volume procurement planning, scheduled delivery arrangements, traceable sourcing management, and long-term supply support for OEM, industrial electronics manufacturers, communication-system developers, automotive electronics programs, and embedded product production.

For production builds, confirming package type, output-voltage option, load-current requirements, temperature grade, lead time, lifecycle status, and sourcing continuity helps reduce procurement risk and improve manufacturing stability.

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.

For embedded power systems, Analog Devices provides PMICs, DC-DC converters, LDO regulators, supervisors, sequencers, bias generators, and reference designs that support efficient, compact, and low-noise power architectures.

FAQ

What is LTC3446EDE#PBF used for?

LTC3446EDE#PBF is used for regulated power conversion, rail generation, bias supply, sequencing, and embedded power management.

Where can I find the LTC3446EDE#PBF datasheet download?

The LTC3446EDE#PBF datasheet download is available from Analog Devices. The datasheet includes electrical specifications, package details, application information, operating limits, and PCB design guidance.

What should be considered in LTC3446EDE#PBF pinout design?

LTC3446EDE#PBF pinout design should prioritize short power loops, correct capacitor placement, exposed-pad grounding, feedback routing, enable sequencing, and thermal design.

What are common LTC3446EDE#PBF equivalent solutions?

Common LTC3446EDE#PBF equivalent alternatives include ADP5023 and ADP5037, depending on rail count, current requirements, package, control functions, and sourcing objectives.

Is LTC3446EDE#PBF suitable for production power designs?

Yes. LTC3446EDE#PBF can be used in production power systems when the datasheet limits, thermal design, component selection, layout requirements, and sourcing traceability are verified for the target application.

LTC3446EDE#PBF Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc.

Series:: -

Package/Case:: 14-WFDFN Exposed Pad

Packaging:: Tube

Product Status:: Active

Topology:: Step-Down (Buck) Synchronous (1), Linear (LDO) (2)

Number of Outputs:: 3

Frequency - Switching:: 2.25MHz

Voltage/Current - Output 1:: Adj to 0.8V, 1A

Voltage/Current - Output 2:: Adj to 0.4V, 300mA

Voltage/Current - Output 3:: Adj to 0.4V, 300mA

w/LED Driver:: No

w/Supervisor:: No

w/Sequencer:: No

Voltage - Supply:: 0.9V ~ 5.5V

Operating Temperature:: -40°C ~ 85°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 14-DFN (4x3)

LTC3446EDE#PBF FAQ

1.How can I place an order for LTC3446EDE#PBF through Aetrix?

Please submit a Request for Quotation (RFQ) for LTC3446EDE#PBF on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for LTC3446EDE#PBF reliable?

The price and inventory of LTC3446EDE#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC3446EDE#PBF is usually 5 days.

3.What payment methods are accepted for LTC3446EDE#PBF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC3446EDE#PBF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for LTC3446EDE#PBF?

LTC3446EDE#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your LTC3446EDE#PBF order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for LTC3446EDE#PBF?

For technical support, including LTC3446EDE#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC3446EDE#PBF requirements.

6.How does Aetrix verify that LTC3446EDE#PBF is sourced from the original manufacturer or authorized distributors?

All LTC3446EDE#PBF products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LTC3446EDE#PBF meets industry standards.

7.What is the process for return or replacement of LTC3446EDE#PBF?

All LTC3446EDE#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC3446EDE#PBF, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The LTC3446EDE#PBF part is unused and in its original packaging.

Return procedure for LTC3446EDE#PBF:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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