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Analog Devices Inc./Maxim Integrated MAX20030CATMA/V+T
- Part No.:
- MAX20030CATMA/V+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Regulators - Linear + Switching
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
MAX20030CATMA/V+T.pdf
- Description:
- IC REG DUAL
- Quantity:
- Payment:
- Shipping:
Inventory:3,829
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Product details
Overview
MAX20030CATMA/V+T from Maxim Integrated is an automotive-grade quad-output power management IC featuring dual 2.2MHz synchronous step-down controllers, a preboost controller, and a high-voltage 200mA LDO - all in a single 48-pin TQFN package. It delivers regulated 5V and 3.3V outputs with 17µA quiescent current (buck1 active), supports cold-crank operation down to 2V input, and operates across -40°C to +125°C for instrument clusters and head units.
For engineers reviewing the MAX20030CATMA/V+T datasheet, MAX20030CATMA/V+T pinout, MAX20030CATMA/V+T application, or MAX20030CATMA/V+T equivalent, this page provides verified technical context, validated pin functions, confirmed automotive thermal and EMI performance, and real-world substitution guidance for front-end power supply design under wide-input-voltage and crank-ready constraints.
Technical Context
The MAX20030CATMA/V+T implements three independent current-mode controllers: two out-of-phase buck regulators (180° phase shift) and one synchronous boost pre-regulator. Its architecture enables simultaneous regulation of VOUT1 (5V), VOUT2 (3.3V), and VOUT4 (5V/3.3V LDO), while the boost stage maintains VIN ≥ 2V during cold-crank by supplying regulated voltage to the buck inputs.
It integrates spread-spectrum modulation (±6% frequency dither), resistor-programmable switching frequency (220kHz–2.2MHz), and three operational modes - forced PWM, skip mode (25µA IQ), and external sync - with dedicated FSYNC, FOSC, and SPS pins. Protection includes cycle-by-cycle current limiting, thermal shutdown at 170°C, and over/under-voltage lockout on IN and INLDO.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.5V–42V normal operation; extends to 2V with preboost enabled - ensures continuous regulation during automotive cold-crank. |
| Quiescent Current | 17µA with 3.3V buck enabled - enables always-on functionality in low-power automotive modules without battery drain. |
| Switching Frequency | Resistor-adjustable 220kHz–2.2MHz; ±6% spread spectrum reduces peak EMI - avoids AM band interference and eases EMC compliance. |
| Output Accuracy | ±1.5% for VOUT1 (5V), ±1.5% for VOUT2 (3.3V), ±2% for VOUT4 (5V/3.3V LDO) - meets OEM requirements for critical domain supplies. |
| Thermal Performance | θJA = 23.3°C/W on 4-layer board; junction-to-case θJC = 1°C/W - enables high-power density layout with minimal heatsinking. |
| Protection Features | Cycle-by-cycle current limit, thermal shutdown (170°C), UVLO on IN (3.1V rising), and PGOOD monitoring per buck channel - improves system reliability in harsh environments. |
Pinout & Package
Package: 48-pin thermally enhanced TQFN (7mm × 7mm, exposed pad), RoHS-compliant, rated for -40°C to +125°C ambient operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Main input supply rail | Accepts 3.5V–42V; connects to output of preboost stage or direct battery - powers both buck controllers and internal circuitry. |
| OUT1 / OUT2 | Buck output sense & current-sense return | Provides feedback path for 5V/3.3V regulation and negative terminal connection for current-sense resistors - enables accurate load monitoring. |
| FB1 / FB2 / FB4 | Voltage feedback inputs | Regulate to 1.00V (buck) or 1.25V (LDO); enable fixed or adjustable outputs via resistor dividers - supports flexible system-level voltage scaling. |
| EN1 / EN2 / EN4 | Independent enable inputs | Active-high, HV-tolerant (up to 42V); allow sequenced startup and dynamic power gating of each regulator - simplifies power sequencing control. |
| LX1 / LX2 / LX3 | Switch-node connections | Drive external high-side MOSFETs; require low-ESR ceramic capacitors to BSTx pins - define switching node integrity and gate-drive stability. |
| PGOOD1 / PGOOD2 | Open-drain power-good indicators | Assert low during soft-start, undervoltage, or fault; require external pull-up to BIAS - provide system-level status signaling for MCU supervision. |
Key Features
| Feature | Design Value |
|---|---|
| Dual 2.2MHz out-of-phase buck controllers | Reduces input capacitance requirement by ~50% and lowers RMS input ripple - minimizes bulk capacitor count and board area in space-constrained modules. |
| Synchronous preboost controller | Enables regulation at VIN as low as 2V during cold-crank - eliminates need for external boost IC and associated BOM cost in automotive front-end designs. |
| Integrated 200mA HV LDO (OUT4) | Supports 3.5V–36V input, 5V/3.3V factory-set output, <500mV dropout at 200mA - powers auxiliary circuits (CAN transceivers, sensors) directly from main rail. |
| Spread-spectrum & programmable frequency | ±6% frequency dither + 220kHz–2.2MHz adjustment - allows EMI optimization across multiple board layouts without hardware change. |
| Automotive-grade protection suite | Includes thermal shutdown (170°C), cycle-by-cycle current limit, and input UVLO/OVLO - meets ASIL-B functional safety readiness for non-safety-critical domains. |
Applications
| Instrument Cluster Power Supply | Navigation Head Unit Front-End |
|---|---|
|
Use Scenario: Powers microcontroller, display driver, and CAN interface in digital instrument clusters during engine start-stop and cold-crank events. IC Role / Device Role / Timing Role: Primary front-end PMIC delivering 5V (MCU core), 3.3V (peripherals), and 5V LDO (CAN PHY) with synchronized buck phases and preboost hold-up. Use Value: Maintains regulation at 2V battery input; 17µA IQ prevents parasitic drain during vehicle sleep mode; 2.2MHz operation enables compact 2.2µH inductors. |
Use Scenario: Supplies multi-rail power to infotainment SoC, audio codec, and touch controller in automotive navigation systems. IC Role / Device Role / Timing Role: Quad-output regulator managing independent sequencing of 5V (SoC I/O), 3.3V (memory), and LDO (sensor bias) with PGOOD coordination. Use Value: Phase-shifted buck operation cuts input ripple by >70%; spread spectrum reduces radiated emissions near FM radio band; thermal robustness supports sealed enclosure operation. |
| Distributed DC Power System | ADAS Camera Module Power |
|
Use Scenario: Centralized power hub for zone-based ECUs in modern vehicle architectures, feeding downstream point-of-load converters. IC Role / Device Role / Timing Role: High-efficiency front-end regulator converting 12V battery to stable 5V/3.3V rails with programmable frequency for EMI coexistence with radar and Ethernet. Use Value: 97% max duty cycle enables dropout operation at low VIN; 25µA IQ in skip mode extends battery life in parked-state monitoring functions. |
Use Scenario: Powers image sensor, ISP, and serializer in rear-view or surround-view camera modules exposed to under-hood temperature extremes. IC Role / Device Role / Timing Role: Automotive-qualified PMIC providing 3.3V (sensor analog), 1.8V (ISP core via external LDO), and 5V (serializer) with thermal shutdown at 170°C. Use Value: Guaranteed operation from -40°C to +125°C ambient; 50ns min on-time supports 3.3V output from 2.2MHz buck without skip; robust ESD (425V CDM) withstands assembly handling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad-output automotive power supply applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX20031CATMA/V+T | Same pinout and electrical specs; differs only in EN3 logic polarity (active-low vs. active-high in MAX20030) and CDM ESD rating (475V vs. 425V). | Requires firmware-level enable logic inversion; identical thermal and EMI behavior in instrument cluster and head unit use cases. | Select when active-low boost enable is required or when higher CDM robustness is prioritized for manufacturing environments. |
| TPS65321A-Q1 | Triple-output (2 buck + 1 LDO), no preboost; 2.1MHz max frequency; 28µA IQ (3.3V buck); 40-pin HTSSOP package. | Lacks cold-crank support below 3.5V; requires external boost for sub-3.5V operation; smaller footprint but lower integration. | Choose for cost-sensitive, non-cold-crank applications where preboost is unnecessary and board space favors HTSSOP over TQFN. |
Compared with MAX20031CATMA/V+T, the MAX20030CATMA/V+T offers active-high EN3 for simplified MCU GPIO control; versus TPS65321A-Q1, it delivers integrated preboost, lower IQ, and superior cold-crank capability - making it optimal for next-gen crank-ready automotive modules.
Availability
MAX20030CATMA/V+T is available at Aetrix Electronics and suitable for instrument cluster power supplies, navigation head units, and distributed DC power systems requiring stable component supply across extended temperature and voltage ranges.
Supply support for MAX20030CATMA/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
Maxim Integrated (now part of Analog Devices) is a semiconductor company specializing in high-performance analog, mixed-signal, and power management solutions for automotive, industrial, and communications markets.
The MAX20030/MAX20031 product line was designed specifically for automotive front-end power conversion - integrating preboost, dual buck, and HV LDO to replace discrete power trees in instrument clusters, head units, and ADAS modules.
FAQ
What is the minimum input voltage supported by MAX20030CATMA/V+T during cold-crank?
The MAX20030CATMA/V+T supports operation down to 2V input when the synchronous preboost controller is enabled - a key feature for maintaining regulation during automotive cold-crank events. This capability is validated across the full -40°C to +125°C temperature range and does not require external components beyond the boost inductor and flying capacitor. The preboost stage automatically engages below ~3.5V to sustain the buck controllers' input rails.
Does MAX20030CATMA/V+T support external clock synchronization?
Yes, MAX20030CATMA/V+T supports external clock synchronization via the FSYNC pin, accepting input frequencies from 250kHz to 2.6MHz depending on RFOSC setting. When synchronized, the device maintains 1:1 frequency ratio with the external clock and retains all internal features including spread spectrum (if enabled) and skip-mode transitions. This enables EMI coexistence in multi-IC systems such as infotainment head units with Ethernet AVB or radar processors.
What is the function of the TERM pin on MAX20030CATMA/V+T?
The TERM pin on MAX20030CATMA/V+T serves as a ground switch for the preboost feedback divider. When the boost controller is disabled, TERM opens to disconnect the feedback network from ground - preventing leakage paths that could affect buck regulation accuracy. During boost operation, TERM connects to PGND3 to complete the feedback loop. This design ensures precise boost output voltage control (regulated to 1.005V at FB3) without cross-talk between power domains.
Can MAX20030CATMA/V+T generate a 3.3V output on its LDO (OUT4)?
Yes, MAX20030CATMA/V+T supports a factory-configurable 3.3V output on its high-voltage LDO (OUT4), in addition to the default 5V option. The LDO accepts 3.5V–36V input, delivers up to 200mA, and maintains ±2% output accuracy across load and temperature. For custom voltages between 1.5V and 10V, an external resistor divider on FB4 can be used - though the 3.3V variant must be ordered as a specific part number (e.g., MAX20030BATMI/V+).
How does the phase-shifted operation of the two buck controllers benefit system design?
The 180° phase shift between the two buck controllers in MAX20030CATMA/V+T reduces input capacitor RMS current by approximately 70% compared to in-phase operation - lowering thermal stress on bulk capacitors and enabling smaller, more reliable input filtering. This also cuts peak input ripple amplitude, easing EMC filter design and improving noise margin for sensitive analog circuits like audio codecs or camera ISPs sharing the same power domain.
MAX20030CATMA/V+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 48-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Topology:
- Step-Down (Buck) Synchronous (2), Step-Up (Boost) (1), Linear (LDO) (1)
- Number of Outputs:
- 4
- Frequency - Switching:
- 220kHz ~ 2.2MHz
- Voltage/Current - Output 1:
- 5V
- Voltage/Current - Output 2:
- 3.3V
- Voltage/Current - Output 3:
- Fixed, Fixed, Controller
- w/LED Driver:
- No
- w/Supervisor:
- No
- w/Sequencer:
- No
- Voltage - Supply:
- 3.5V ~ 42V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 48-SWTQFN (7x7)
MAX20030CATMA/V+T FAQ
1.How can I place an order for MAX20030CATMA/V+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20030CATMA/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 MAX20030CATMA/V+T reliable?
The price and inventory of MAX20030CATMA/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 MAX20030CATMA/V+T is usually 5 days.
3.What payment methods are accepted for MAX20030CATMA/V+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20030CATMA/V+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20030CATMA/V+T?
MAX20030CATMA/V+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20030CATMA/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 MAX20030CATMA/V+T?
For technical support, including MAX20030CATMA/V+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20030CATMA/V+T requirements.
6.How does Aetrix verify that MAX20030CATMA/V+T is sourced from the original manufacturer or authorized distributors?
All MAX20030CATMA/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 MAX20030CATMA/V+T meets industry standards.
7.What is the process for return or replacement of MAX20030CATMA/V+T?
All MAX20030CATMA/V+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX20030CATMA/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 MAX20030CATMA/V+T part is unused and in its original packaging.
Return procedure for MAX20030CATMA/V+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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