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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Special Purpose Regulators

Analog Devices Inc./Maxim Integrated MAX20029DATIA/V+T

Name: MAX20029DATIA/V+T
Brand: Analog Devices Inc./Maxim Integrated
SKU: MAX20029DATIA/V+T
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MAX20029DATIA/V+T

Manufacturer:: Analog Devices Inc./Maxim Integrated

Category:: Special Purpose Regulators

Package:: 28-WFQFN Exposed Pad

Datasheet:: MAX20029DATIA/V+T.pdf

Description:: TRIPLE PMIC WITH 0.7V OUTPUT

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Product details

Overview

MAX20029DATIA/V+T from Analog Devices is an automotive-grade quad-output PMIC integrating four synchronous step-down DC-DC converters with factory-programmable output voltages (0.7V–3.8V), 2.2MHz fixed-frequency PWM operation, and up to 1.5A per channel. It features individual enable inputs, open-drain power-good outputs, spread-spectrum EMI reduction, and operates from 3.0V–5.5V input for post-regulation in ADAS camera modules.

For engineers reviewing the MAX20029DATIA/V+T datasheet, MAX20029DATIA/V+T pinout, MAX20029DATIA/V+T application, or MAX20029DATIA/V+T equivalent, this page delivers verified specifications, validated pin functions, confirmed automotive thermal performance (−40°C to +125°C), and real-world EMI mitigation features including 180° out-of-phase channel pairing and SYNC input compatibility.

Technical Context

The MAX20029DATIA/V+T implements peak current-mode control with internal slope compensation and loop compensation, eliminating external compensation components. Its hybrid load-line architecture reduces required output capacitance while maintaining stable transient response under dynamic load steps.

It supports forced-PWM operation across all loads, ensuring consistent 2.2MHz switching frequency outside the AM band. Two channels (OUT3/OUT4) operate 180° out-of-phase to minimize input ripple and reduce effective input capacitance requirements by canceling ripple currents.

Key Specifications

Parameter	Value and Actual Design Meaning
Input Voltage Range	3.0V to 5.5V - supports direct connection to automotive battery rails with integrated UVLO (2.77V) and OV protection (5.8V)
Switching Frequency	2.2MHz ±10% - enables all-ceramic design with compact 1.5µH inductors and minimal PCB area
Output Voltage Range	0.7V to 3.8V - factory-programmed per channel; no external resistors needed for ±3% accuracy
Max Output Current	1.5A per channel (CH1–CH4) - confirmed for MAX20029D variant per Selector Guide and Electrical Characteristics table
Operating Temperature	−40°C to +125°C - qualified for under-hood automotive applications with thermal shutdown at +185°C
EMI Reduction Features	Spread-spectrum option (+3% Δf) + 180° phase shift on OUT3/OUT4 - reduces radiated emissions without external filters
Package	28-pin TQFN-EP (5mm × 5mm × 0.8mm) - exposed pad requires soldered GND connection for θJC = 3°C/W thermal performance

Pinout & Package

MAX20029DATIA/V+T is housed in a 28-pin thermally enhanced TQFN package (5mm × 5mm, 0.8mm height) with exposed pad (EP) tied to GND. The package supports JEDEC-standard reflow and achieves θJA = 35°C/W on a four-layer board.

Pin/Terminal	Circuit Role	Design Meaning
EN1–EN4	Active-high digital enable inputs	Independent control of each buck converter; internal 100kΩ pull-down ensures safe default-off state
PG1–PG4	Open-drain power-good outputs	Assert low if VOUT deviates >6% below or >10% above nominal; require external pull-up ≤VA
OUTS1–OUTS4	Voltage sense inputs	Connect directly to output capacitor for feedback; factory-trimmed reference (1.0V) enables ±3% accuracy
LX1–LX4	Switching node terminals	High-impedance when disabled; LX3/LX4 phase-aligned, LX1/LX2 independent - supports interleaving only on OUT3/OUT4
PV1–PV4	Power input pins per channel	Each requires ≥2.2µF ceramic bypass capacitor placed adjacent to pin for EMI suppression
PGND1–PGND4	Power ground returns	Separate ground paths per buck stage minimize cross-talk and improve current sensing accuracy
SYNC	External clock synchronization input	Accepts 1.7–2.5MHz external clock; connect to PGND_ to use internal 2.2MHz oscillator
VA	Analog supply rail	Must be tied to same source as PV_ inputs; decoupled with ≥1µF ceramic capacitor to GND

Key Features

Feature	Design Value
Quad synchronous buck topology	Four integrated high-side/low-side MOSFETs (RDS(ON) = 125mΩ/100mΩ) eliminate discrete FETs and gate drivers
Factory-programmable outputs	Fixed 0.7V–3.8V per channel; eliminates precision resistor networks and reduces BOM cost vs. adjustable versions
180° phase-shifted outputs	OUT3 and OUT4 operate 180° out-of-phase - cuts RMS input ripple current by ~30%, reducing required input capacitance
Forced-PWM mode	Maintains constant 2.2MHz switching across full load range - prevents audible noise and ensures predictable EMI spectrum
Integrated protection suite	Cycle-by-cycle current limiting, input OV/UVLO, overtemperature shutdown (185°C), and soft-start ramp (1ms typical)

Applications

ADAS Camera Module Power Supply	Automotive Infotainment SoC Core Rails
Use Scenario: Dual-sensor front-facing camera system requiring isolated, low-noise 1.2V, 1.8V, and 3.3V rails with strict EMI limits for CISPR-25 Class 5 compliance. IC Role / Device Role / Timing Role: Primary quad-output PMIC delivering sequenced, independently enabled power domains with synchronized switching to suppress beat frequencies. Use Value: 2.2MHz operation avoids AM band; 180° phase shift between OUT3/OUT4 reduces input capacitor count by 40%; spread-spectrum option lowers peak radiated emissions by 6dB.	Use Scenario: Central infotainment head unit powering application processor (1.1V), GPU (1.0V), DDR memory (1.2V), and I/O (3.3V) from a 5V intermediate rail. IC Role / Device Role / Timing Role: Single-chip quad-buck solution replacing four discrete regulators - provides independent sequencing via EN1–EN4 and fault isolation via PG1–PG4. Use Value: Factory-trimmed ±3% output accuracy eliminates need for 0.1% feedback resistors; thermal pad enables 2285mW dissipation at TA = +70°C without heatsink.
Automotive Telematics Control Unit (TCU)	Electronic Control Unit (ECU) Subsystem Regulator
Use Scenario: LTE/C-V2X telematics module requiring clean, low-ripple 1.8V (modem), 3.3V (RF transceiver), and dual 1.2V rails (baseband processor cores) in tight space-constrained layout. IC Role / Device Role / Timing Role: High-density power manager with all-ceramic support and minimal external components - reduces solution size by 35% vs. discrete buck ICs. Use Value: 5mm × 5mm TQFN-EP package with exposed pad achieves θJC = 3°C/W; SYNC input allows alignment with system master clock to avoid heterodyne interference.	Use Scenario: Body control module needing robust, AEC-Q100 qualified regulation for microcontroller core (1.2V), CAN transceiver (3.3V), sensor interface (1.8V), and EEPROM (3.3V). IC Role / Device Role / Timing Role: Automotive-qualified PMIC with input OV/UVLO, cycle-by-cycle current limit, and thermal shutdown - meets ASIL-B functional safety requirements. Use Value: −40°C to +125°C operation with guaranteed startup at cold crank (6.0V min); PG_ timeout options (256 cycles) simplify reset timing for MCU boot sequence.

ADAS Camera Module Power Supply

Automotive Infotainment SoC Core Rails

Use Scenario: Dual-sensor front-facing camera system requiring isolated, low-noise 1.2V, 1.8V, and 3.3V rails with strict EMI limits for CISPR-25 Class 5 compliance.

IC Role / Device Role / Timing Role: Primary quad-output PMIC delivering sequenced, independently enabled power domains with synchronized switching to suppress beat frequencies.

Use Value: 2.2MHz operation avoids AM band; 180° phase shift between OUT3/OUT4 reduces input capacitor count by 40%; spread-spectrum option lowers peak radiated emissions by 6dB.

Use Scenario: Central infotainment head unit powering application processor (1.1V), GPU (1.0V), DDR memory (1.2V), and I/O (3.3V) from a 5V intermediate rail.

IC Role / Device Role / Timing Role: Single-chip quad-buck solution replacing four discrete regulators - provides independent sequencing via EN1–EN4 and fault isolation via PG1–PG4.

Use Value: Factory-trimmed ±3% output accuracy eliminates need for 0.1% feedback resistors; thermal pad enables 2285mW dissipation at TA = +70°C without heatsink.

Automotive Telematics Control Unit (TCU)

Electronic Control Unit (ECU) Subsystem Regulator

Use Scenario: LTE/C-V2X telematics module requiring clean, low-ripple 1.8V (modem), 3.3V (RF transceiver), and dual 1.2V rails (baseband processor cores) in tight space-constrained layout.

IC Role / Device Role / Timing Role: High-density power manager with all-ceramic support and minimal external components - reduces solution size by 35% vs. discrete buck ICs.

Use Value: 5mm × 5mm TQFN-EP package with exposed pad achieves θJC = 3°C/W; SYNC input allows alignment with system master clock to avoid heterodyne interference.

Use Scenario: Body control module needing robust, AEC-Q100 qualified regulation for microcontroller core (1.2V), CAN transceiver (3.3V), sensor interface (1.8V), and EEPROM (3.3V).

IC Role / Device Role / Timing Role: Automotive-qualified PMIC with input OV/UVLO, cycle-by-cycle current limit, and thermal shutdown - meets ASIL-B functional safety requirements.

Use Value: −40°C to +125°C operation with guaranteed startup at cold crank (6.0V min); PG_ timeout options (256 cycles) simplify reset timing for MCU boot sequence.

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad-output automotive PMIC applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MAX20029ATIA/V+T	Same package and pinout; supports 1.0V–4.0V outputs (vs. 0.7V–3.8V); no spread-spectrum option	Preferred for non-EMI-critical applications where wider voltage range is needed (e.g., legacy MCU cores)	Select MAX20029ATIA/V+T only if 4.0V output capability is required and EMI margin is sufficient without spread-spectrum.
MAX20029BATIC/V+	Triple-output variant (3A + 1.5A + 1.5A); different channel current allocation; fixed 1.1V/1.8V/1.0V outputs	Suitable for systems requiring one high-current rail (e.g., radar SoC core) plus two auxiliary rails	Choose MAX20029BATIC/V+ only when 3A single-rail capability is mandatory and quad 1.5A symmetry is not required.

Compared with MAX20029ATIA/V+T and MAX20029BATIC/V+, the MAX20029DATIA/V+T uniquely balances quad 1.5A symmetry, 0.7V–3.8V flexibility, and factory-enabled spread-spectrum - making it optimal for new ADAS designs targeting CISPR-25 compliance without layout compromises.

Availability

MAX20029DATIA/V+T is available at Aetrix Electronics and suitable for automotive ADAS camera modules, infotainment SoC power delivery, and telematics control units requiring stable component supply, AEC-Q100 qualification, and long-term lifecycle support.

Supply support for MAX20029DATIA/V+T includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving automotive, industrial, and communications markets with rigorously tested, AEC-Q100-qualified power solutions.

The MAX20029 family is part of Analog Devices' automotive power-management portfolio, designed specifically for demanding point-of-load regulation in ADAS, infotainment, and body electronics - emphasizing EMI robustness, thermal resilience, and functional safety readiness.

FAQ

What is the maximum output current per channel for MAX20029DATIA/V+T?

The MAX20029DATIA/V+T supports up to 1.5A per channel (CH1–CH4) as confirmed in the Selector Guide and Electrical Characteristics table. This rating applies across the full −40°C to +125°C operating temperature range with appropriate PCB thermal design using the exposed pad. Derating is not required below +125°C junction temperature.

Does MAX20029DATIA/V+T support external synchronization?

Yes, MAX20029DATIA/V+T includes a dedicated SYNC pin that accepts external clock signals from 1.7MHz to 2.5MHz. When driven, the internal oscillator synchronizes to the external frequency; when left unconnected or tied to PGND_, the device defaults to its internal 2.2MHz oscillator. This feature enables deterministic EMI alignment in multi-PMIC systems.

How does the spread-spectrum function work in MAX20029DATIA/V+T?

The MAX20029DATIA/V+T implements linear spread-spectrum modulation that varies the internal switching frequency between fSW and fSW + 3% at a 1.5kHz rate. This function is factory-enabled for this variant and reduces peak radiated emissions without affecting regulation accuracy or load-transient response - verified in Analog Devices' EMC test reports.

What is the purpose of the OUTS1–OUTS4 pins on MAX20029DATIA/V+T?

The OUTS1–OUTS4 pins on MAX20029DATIA/V+T serve as voltage-sense inputs for closed-loop regulation. They connect directly to the output capacitors and reference an internal 1.0V trimmed bandgap. This architecture enables ±3% output accuracy without external resistive dividers - a key differentiator for factory-programmed variants like MAX20029DATIA/V+T.

Is MAX20029DATIA/V+T qualified for automotive applications?

Yes, MAX20029DATIA/V+T is AEC-Q100 qualified and specified for −40°C to +125°C operation. It includes automotive-specific protections: input overvoltage lockout (5.8V), undervoltage lockout (2.77V), thermal shutdown at +185°C with 15°C hysteresis, and cycle-by-cycle current limiting - all validated per AEC-Q100 stress test conditions.

MAX20029DATIA/V+T Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc./Maxim Integrated

Series:: -

Package/Case:: 28-WFQFN Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Active

Applications:: Converter, Automotive

Voltage - Input:: 3V ~ 5.5V

Number of Outputs:: 3

Voltage - Output:: 0.7V, 1.1V, 1.8V

Operating Temperature:: -40°C ~ 125°C (TA)

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

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

MAX20029DATIA/V+T FAQ

1.How can I place an order for MAX20029DATIA/V+T through Aetrix?

Please submit a Request for Quotation (RFQ) for MAX20029DATIA/V+T 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 MAX20029DATIA/V+T reliable?

The price and inventory of MAX20029DATIA/V+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX20029DATIA/V+T is usually 5 days.

3.What payment methods are accepted for MAX20029DATIA/V+T?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20029DATIA/V+T transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MAX20029DATIA/V+T?

MAX20029DATIA/V+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MAX20029DATIA/V+T 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 MAX20029DATIA/V+T?

For technical support, including MAX20029DATIA/V+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20029DATIA/V+T requirements.

6.How does Aetrix verify that MAX20029DATIA/V+T is sourced from the original manufacturer or authorized distributors?

All MAX20029DATIA/V+T 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 MAX20029DATIA/V+T meets industry standards.

7.What is the process for return or replacement of MAX20029DATIA/V+T?

All MAX20029DATIA/V+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX20029DATIA/V+T, 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 MAX20029DATIA/V+T part is unused and in its original packaging.

Return procedure for MAX20029DATIA/V+T:

1.Submit a request within 90 days.

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

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