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

Analog Devices Inc./Maxim Integrated MAX20428ATIE/VY+

Name: MAX20428ATIE/VY+
Brand: Analog Devices Inc./Maxim Integrated
SKU: MAX20428ATIE/VY+
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MAX20428ATIE/VY+

Manufacturer:: Analog Devices Inc./Maxim Integrated

Category:: Voltage Regulators - Linear + Switching

Package:: 28-WFQFN Exposed Pad

Datasheet:: MAX20428ATIE/VY+.pdf

Description:: ASIL-C LV PMIC FOR DENSO ADAS AP

Quantity:: RFQ Add To RFQ list

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Inventory:2,319

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Product details

Overview

MAX20428ATIE/VY+ from Analog Devices / Maxim Integrated is an eight-output low-voltage PMIC for ADAS applications. The device integrates a 5V boost converter, three buck converters, three LDO regulators, and a load switch to power complex automotive sensing and processing subsystems from a compact side-wettable TQFN package.

As part of the MAX20428 product family, MAX20428ATIE/VY+ combines a 500mA boost output, dual 1A buck outputs, one 3A buck output, three 300mA LDO rails, a 25mohm load switch, I2C Fast-mode Plus control with packet-error checking option, 2.1MHz spread-spectrum operation, watchdog/diagnostic functions, and ASIL C compliance. For engineers reviewing the MAX20428ATIE/VY+ datasheet, MAX20428ATIE/VY+ pinout, MAX20428ATIE/VY+ application, or MAX20428ATIE/VY+ equivalent, this device is widely used in ADAS modules, automotive camera sensors, radar support electronics, vision-processing boards, safety-related sensor hubs, and compact vehicle embedded power systems.

Technical Context

In ADAS hardware, MAX20428ATIE/VY+ operates as a highly integrated PMIC that creates boost, buck, LDO, and switched-load rails for camera sensors and processing electronics. The boost converter generates a 5V rail at up to 500mA, while the buck converters supply high-current low-voltage rails.

The 2.1MHz fixed-frequency PWM architecture supports compact passives and predictable noise behavior, while spread-spectrum modulation helps reduce radiated emissions. I2C Fast-mode Plus control with PEC option supports configuration and diagnostics in safety-related systems.

MAX20428ATIE/VY+ is commonly used when an automotive sensor module needs ASIL C compliant diagnostics, ±1.5% output accuracy, OV/UV monitoring, overtemperature protection, and side-wettable package inspection.

Key Specifications

Parameter	Value and Actual Design Meaning
Device Type	Eight-output ADAS PMIC with boost, bucks, LDOs, and load switch.
Boost Output	5V output up to 500mA.
Buck Outputs	Two 1A bucks with 1.3A peak and one 3A buck with 3.5A peak capability.
LDO Outputs	Three 300mA low-dropout regulators.
Load Switch	Integrated 25mohm load switch.
Control Interface	I2C Fast-mode Plus compatible interface with PEC option.
Switching Frequency	2.1MHz operation with spread-spectrum option.
Package	28-pin 5mm x 5mm side-wettable TQFN, -40C to +125C Grade 1 range.

Pinout & Package

The MAX20428ATIE/VY+ pinout includes boost output and switching pins, buck switch nodes, LDO outputs, load-switch pins, I2C interface pins, watchdog/reset/error functions, enable pins, and exposed-pad ground.

For PCB design, switching loops should be separated and compact, LDO rails should be locally decoupled, I2C and diagnostic traces should avoid switch nodes, and the side-wettable TQFN exposed pad should be tied to thermal ground copper.

Pin / Function	PCB Design and Circuit Role
OUT1	5V boost converter output.
SW2-SW4	Switching nodes for buck converters.
OUT2-OUT4	Buck regulator outputs.
LDO1-LDO3	Three 300mA LDO outputs.
SDA / SCL	I2C Fast-mode Plus control interface.
WDI / RESET / ERROR	Watchdog, reset, and diagnostic status functions.
EN	Enable control.
GND / Exposed Pad	Ground and thermal return path.

Key Features

Eight-output architecture supports ADAS sensor rails.
ASIL C compliant diagnostics support safety-related designs.
2.1MHz spread-spectrum operation improves EMI behavior.
I2C Fast-mode Plus with PEC supports robust control.
OV/UV monitoring improves rail supervision.
Side-wettable TQFN supports automotive inspection.

Applications

ADAS Modules

Camera Sensors

Use Scenario: Used in safety-related vehicle sensor electronics.

IC Role: Provides multiple monitored rails.

Use Value: Supports compact ASIL-oriented power design.

Use Scenario: Used in automotive imaging modules.

IC Role: Supplies boost, buck, LDO, and load-switch rails.

Use Value: Reduces PMIC footprint.

Radar Support

Vision Processing

Use Scenario: Used around radar processing and sensor support rails.

IC Role: Generates regulated low-voltage supplies.

Use Value: Improves integration.

Use Scenario: Used in camera-processing boards.

IC Role: Powers digital and analog rails.

Use Value: Supports diagnostics and sequencing.

Equivalent & Alternatives

When evaluating a MAX20428ATIE/VY+ equivalent, engineers should compare output count, ASIL compliance, I2C diagnostics, buck current, LDO count, load switch, package, and automotive temperature rating.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MAX25252ATIA/VY+	Analog Devices five-output ASIL B PMIC for next-generation camera sensors with fewer rails.	Used in automotive camera sensor power systems.	Compare rail count, ASIL level, package, and diagnostics.
TPS6594110BRWERQ1	Texas Instruments automotive PMIC with more configurable rails and different processor-oriented architecture.	Used in ADAS processor platforms.	Compare rail map, safety diagnostics, NVM configuration, and package.

Compared with MAX25252ATIA/VY+, MAX20428ATIE/VY+ provides an eight-output ASIL C architecture with boost, buck, LDO, and load-switch functions. MAX20428ATIE/VY+ vs TPS6594110BRWERQ1 selection depends on ADAS sensor rail map, ASIL target, diagnostics, processor requirements, and package constraints.

Quality

MAX20428ATIE/VY+ should be sourced as original Analog Devices / Maxim Integrated automotive components through traceable supply channels. Quality checks may include side-wettable TQFN inspection, top-mark validation, solderability testing, output rail verification, I2C communication checks, and diagnostic-function review.

Production validation should include rail accuracy, OV/UV monitoring, watchdog/reset behavior, spread-spectrum EMI behavior, thermal performance, and ASIL-related documentation review.

Availability

MAX20428ATIE/VY+ available at Aetrix Electronics and is suitable for ADAS, camera sensor, radar support, vision-processing, safety-related sensor, and compact automotive embedded power systems.

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, ASIL requirements, output-voltage option, lifecycle status, lead time, 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. Maxim Integrated power-management products are now part of the Analog Devices portfolio.

The MAX20428 product family is an Analog Devices / Maxim eight-output low-voltage PMIC series with ASIL C diagnostics for ADAS and automotive sensor power systems.

FAQ

What is MAX20428ATIE/VY+ used for?

MAX20428ATIE/VY+ is used for ADAS modules, automotive camera sensors, radar support electronics, vision-processing boards, and safety-related sensor hubs.

Where can I find the MAX20428ATIE/VY+ datasheet download?

The MAX20428ATIE/VY+ datasheet is available from Analog Devices and includes output ratings, I2C diagnostics, package data, and application guidance.

What outputs does MAX20428ATIE/VY+ include?

It includes a 5V boost, three buck converters, three LDO regulators, and one load switch.

What should be considered in MAX20428ATIE/VY+ pinout design?

Designers should separate switching loops, place LDO capacitors close to their pins, route I2C/diagnostic lines away from noisy nodes, and connect the exposed pad to thermal ground.

What are common MAX20428ATIE/VY+ equivalent solutions?

Common candidates include MAX25252ATIA/VY+ and TPS6594110BRWERQ1 depending on rail count, ASIL target, diagnostics, and package.

MAX20428ATIE/VY+ Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc./Maxim Integrated

Series:: -

Package/Case:: 28-WFQFN Exposed Pad

Packaging:: Tube

Product Status:: Active

Topology:: Step-Down (Buck) (3), Step-Up (Boost) (1), Linear (LDO) (3)

Number of Outputs:: 7

Frequency - Switching:: 2.1MHz

Voltage/Current - Output 1:: 0.8V ~ 3.9875V, 3A

Voltage/Current - Output 2:: 0.8V ~ 3.9875V, 1A

Voltage/Current - Output 3:: 0.8V ~ 3.9875V, 1A

w/LED Driver:: No

w/Supervisor:: No

w/Sequencer:: No

Voltage - Supply:: 3V ~ 4.2V

Operating Temperature:: -40°C ~ 125°C

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount, Wettable Flank

Supplier Device Package:: 28-TQFN-EP (5x5)

MAX20428ATIE/VY+ FAQ

1.How can I place an order for MAX20428ATIE/VY+ through Aetrix?

Please submit a Request for Quotation (RFQ) for MAX20428ATIE/VY+ 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 MAX20428ATIE/VY+ reliable?

The price and inventory of MAX20428ATIE/VY+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX20428ATIE/VY+ is usually 5 days.

3.What payment methods are accepted for MAX20428ATIE/VY+?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20428ATIE/VY+ transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MAX20428ATIE/VY+?

MAX20428ATIE/VY+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MAX20428ATIE/VY+ 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 MAX20428ATIE/VY+?

For technical support, including MAX20428ATIE/VY+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20428ATIE/VY+ requirements.

6.How does Aetrix verify that MAX20428ATIE/VY+ is sourced from the original manufacturer or authorized distributors?

All MAX20428ATIE/VY+ 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 MAX20428ATIE/VY+ meets industry standards.

7.What is the process for return or replacement of MAX20428ATIE/VY+?

All MAX20428ATIE/VY+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX20428ATIE/VY+, 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 MAX20428ATIE/VY+ part is unused and in its original packaging.

Return procedure for MAX20428ATIE/VY+:

1.Submit a request within 90 days.

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

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