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Analog Devices Inc./Maxim Integrated MAX20030BATMD/V+T
- Part No.:
- MAX20030BATMD/V+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- -
- Datasheet:
-
MAX20030BATMD/V+T.pdf
- Description:
- IC REG BUCK SMD
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Product details
Overview
MAX20030BATMD/V+T from Maxim Integrated is an automotive-grade dual synchronous step-down controller with integrated preboost circuit and high-voltage 200mA LDO, designed for front-end power management in cold-crank–capable systems. It delivers regulated 5V (Buck1) and 3.3V (Buck2) outputs, supports input down to 2V via preboost, operates up to 42V input, and achieves 17µA quiescent current with Buck1 enabled - ideal for instrument clusters and navigation head units.
For engineers reviewing the MAX20030BATMD/V+T datasheet, MAX20030BATMD/V+T pinout, MAX20030BATMD/V+T application, or MAX20030BATMD/V+T equivalent, key selection criteria include its 2.2MHz resistor-programmable switching frequency, 180° phase-shifted dual-buck architecture, spread-spectrum EMI reduction, thermally enhanced 48-pin TQFN package, and -40°C to +125°C automotive qualification.
Technical Context
The MAX20030BATMD/V+T implements three independent current-mode controllers: two out-of-phase synchronous buck controllers (Buck1/Buck2) and one synchronous boost controller (preboost), all sharing a common BIAS rail and AGND/PGND separation. Its architecture enables simultaneous regulation of multiple rails while maintaining ultra-low IQ during standby and robust operation under 2V battery conditions.
Control features include resistor-programmable frequency (220kHz–2.2MHz), selectable forced-PWM/skip mode, external clock synchronization (FSYNC), and pin-enabled spread spectrum (SPS). Protection includes cycle-by-cycle current limit, thermal shutdown at 170°C, overvoltage/undervoltage lockout, and PGOOD monitoring on both buck outputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.5V to 42V normal operation; extends to 2V with preboost enabled - ensures regulation during automotive cold-crank. |
| Quiescent Current (IQ) | 17µA with 3.3V Buck enabled; 65µA with all controllers active - enables always-on system compliance. |
| Switching Frequency | Resistor-programmable 220kHz–2.2MHz; ±6% spread-spectrum option - avoids AM band interference and reduces EMI peak emissions. |
| Output Accuracy | ±1.5% for fixed 5V (Buck1); ±1.5% for fixed 3.3V (Buck2); ±0.5% for LDO output - meets OEM power-rail tolerance requirements. |
| Thermal Performance | θJA = 23.3°C/W on 4-layer board; θJC = 1°C/W - enables high-power density layout with minimal heatsinking. |
| Operating Temperature | -40°C to +125°C junction - qualified per AEC-Q100 Grade 1 for under-hood automotive applications. |
| Package | 48-pin TQFN (7mm × 7mm, exposed pad) - provides low-inductance PGND paths and superior thermal dissipation. |
Pinout & Package
MAX20030BATMD/V+T is housed in a thermally enhanced 48-pin TQFN package (7mm × 7mm, outline 21-0144) with exposed pad (EP = GND) for optimal heat transfer. Pin assignments are validated per Maxim's official pin configuration diagram (Rev 21, p.11).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DL1, DL2, DL3 | Low-side gate-driver outputs | Drive n-channel MOSFET sources; swing from respective PGND to BIAS - enable efficient synchronous rectification. |
| DH1, DH2, DH3 | High-side gate-driver outputs | Drive n-channel MOSFET gates; referenced to LXx/BSTx - support bootstrap-based high-side drive without external drivers. |
| FB1, FB2, FB3, FB4 | Feedback inputs | Regulate Buck1 (5V), Buck2 (3.3V), Boost (adjustable), and LDO (5V/3.3V) - each references internal 1.0V (±0.5%) bandgap for precision. |
| EN1, EN2, EN3, EN4 | Independent enable inputs | Active-high digital controls for Buck1, Buck2, preboost, and HV LDO - allow flexible power sequencing and rail isolation. |
| PGOOD1, PGOOD2 | Open-drain power-good indicators | Assert low during soft-start, fault, or undervoltage; require external pull-up to BIAS - provide system-level power-status signaling. |
| FOSC, FSYNC, SPS | Frequency control pins | FOSC sets switching frequency via resistor; FSYNC enables external sync; SPS toggles spread-spectrum - give full EMI and timing flexibility. |
Key Features
| Feature | Design Value |
|---|---|
| Preboost controller | Enables Buck1/Buck2 regulation down to 2V VIN - eliminates need for external boost stage in cold-crank designs. |
| 180° interleaved dual buck | Reduces input/output ripple by >50% vs. single-phase; cuts RMS input capacitor current - lowers component count and size. |
| Ultra-low IQ modes | 17µA (Buck1 only), 65µA (all controllers) - meets ISO 16750-2 quiescent current limits for parked vehicle battery life. |
| 50ns minimum on-time | Guarantees stable 3.3V output from 2.2MHz switching at 14V input - enables high-frequency, small-inductor designs. |
| Integrated 200mA HV LDO | Operates from 3.5V–36V INLDO; 500mV dropout at 200mA - powers MCU cores or sensors independently of buck rails. |
| Automotive safety features | Overtemperature shutdown (170°C), OVP/UVP, cycle-by-cycle current limit, and 2.5kV HBM ESD - satisfies ASIL-B functional safety readiness. |
Applications
| Instrument Cluster Power | Navigation Head Unit |
|---|---|
Use Scenario: Powering LCD display, microcontroller, CAN transceiver, and backlight drivers in automotive instrument panels under stop-start and cold-crank conditions. IC Role / Device Role / Timing Role: Front-end PMIC delivering isolated 5V (MCU), 3.3V (peripherals), and boosted intermediate rail for display bias. Use Value: Maintains regulation during 2V battery dips; 17µA IQ extends battery hold-up time; spread-spectrum minimizes noise coupling into analog gauges. |
Use Scenario: Supplying SoC core, DDR memory, audio codec, and touch controller in infotainment head units with wide input voltage tolerance. IC Role / Device Role / Timing Role: Dual-phase buck controller generating clean 1.1V/1.8V/3.3V rails; preboost sustains operation during engine cranking. Use Value: 180° phase shift reduces input capacitance requirement by 75%; 2.2MHz switching allows <10mm² total inductor footprint. |
| Distributed DC Power System | ADAS Camera Module |
Use Scenario: Centralized power management for zone controllers in E/E architectures, feeding multiple downstream point-of-load converters. IC Role / Device Role / Timing Role: Primary regulator providing stable 5V/3.3V backbone rails; LDO supplies isolated sensor interface power. Use Value: 42V max input handles load-dump transients; PGOOD1/PGOOD2 enable cascaded power sequencing across zones. |
Use Scenario: Powering image sensor, ISP, and serializer in automotive camera modules requiring low-noise, compact, and crank-ready supply. IC Role / Device Role / Timing Role: Dual-buck controller with tight output accuracy (±1.5%) and fast transient response (<200µs) for pixel clock stability. Use Value: 50ns min on-time supports 2.2MHz operation at 12V→3.3V conversion; thermal resistance (θJA = 23.3°C/W) prevents derating at 85°C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multi-rail automotive power controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX20031BATMD/V+T | Same pinout and electrical specs; differs only in EN3 threshold (0.95V vs. 0.92V for MAX20030) and CDM ESD rating (475V vs. 425V). | Identical use cases; selected when tighter EN3 hysteresis or higher CDM robustness is required. | Drop-in replacement where EN3 activation voltage tolerance is relaxed; verify EN3 logic compatibility in existing design. |
| MPQ4332GSD-AEC1 | Single 2.2MHz buck controller (no preboost, no LDO); 3.5V–36V input; 5A output; smaller 16-pin QFN. | Suitable only for single-rail applications; lacks cold-crank capability and integrated LDO - requires external boost/LDO for equivalent functionality. | Choose when only one high-current rail is needed and board space is constrained; not a functional substitute for MAX20030BATMD/V+T's quad-output architecture. |
Compared with MAX20030BATMD/V+T, MAX20031BATMD/V+T offers identical functionality with minor EN3 threshold and ESD differences, while MPQ4332GSD-AEC1 provides cost-optimized single-rail conversion but omits preboost, LDO, and dual-phase capability - making it unsuitable for full front-end replacement.
Availability
MAX20030BATMD/V+T is available at Aetrix Electronics and suitable for instrument cluster, navigation head unit, and distributed DC power systems requiring stable component supply across automotive production lifecycles.
Supply support for MAX20030BATMD/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 leader in high-performance analog, mixed-signal, and power-management ICs, serving automotive, industrial, and communications markets with AEC-Q100–qualified solutions.
The MAX20030/MAX20031 product line was engineered specifically for automotive front-end power domains - integrating dual buck, preboost, and HV LDO to replace discrete power trees in crank-ready ECUs and infotainment systems.
FAQ
What is the minimum input voltage supported by MAX20030BATMD/V+T during cold-crank operation?
The MAX20030BATMD/V+T supports operation down to 2V input when the preboost controller is enabled - verified per datasheet Section "Electrical Characteristics" and Typical Operating Characteristic toc27 (Cold Crank with Boost Enabled). This ensures continuous regulation of both Buck1 and Buck2 outputs during severe automotive battery sag events.
Does MAX20030BATMD/V+T require external components to set its switching frequency?
Yes - MAX20030BATMD/V+T uses an external resistor connected to the FOSC pin to set switching frequency from 220kHz to 2.2MHz. The value is calculated using RFOSC = (1.25 × 10⁶)/fSW (Ω); for example, 12kΩ yields ~104MHz nominal, adjusted to 2.2MHz per datasheet Table "Switching-Frequency Accuracy".
Can MAX20030BATMD/V+T power both a 5V microcontroller and a 3.3V peripheral rail simultaneously?
Yes - MAX20030BATMD/V+T integrates two independent synchronous buck controllers: Buck1 delivers a factory-trimmed 5V output (±1.5%), and Buck2 delivers a factory-trimmed 3.3V output (±1.5%). Both operate at up to 2.2MHz with 180° phase shift, enabling concurrent, low-noise, high-efficiency regulation.
What is the purpose of the TERM pin on MAX20030BATMD/V+T?
The TERM pin on MAX20030BATMD/V+T serves as a ground switch for the preboost feedback divider. When the preboost controller is disabled, TERM opens to disconnect the feedback network - preventing leakage current and ensuring accurate regulation of Buck1/Buck2 outputs during normal operation.
Is MAX20030BATMD/V+T qualified for automotive applications?
Yes - MAX20030BATMD/V+T is AEC-Q100 Grade 1 qualified (-40°C to +125°C), features 2.5kV HBM ESD rating, and includes automotive-specific protections: thermal shutdown at 170°C, overvoltage/undervoltage lockout, and cycle-by-cycle current limiting - all documented in the "Absolute Maximum Ratings" and "Protection Features" sections of the datasheet.
MAX20030BATMD/V+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- *
- Package/Case:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- -
- Output Configuration:
- -
- Topology:
- -
- Output Type:
- -
- Number of Outputs:
- -
- Voltage - Input (Min):
- -
- Voltage - Input (Max):
- -
- Voltage - Output (Min/Fixed):
- -
- Voltage - Output (Max):
- -
- Current - Output:
- -
- Frequency - Switching:
- -
- Synchronous Rectifier:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
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MAX20030BATMD/V+T FAQ
1.How can I place an order for MAX20030BATMD/V+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20030BATMD/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 MAX20030BATMD/V+T reliable?
The price and inventory of MAX20030BATMD/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 MAX20030BATMD/V+T is usually 5 days.
3.What payment methods are accepted for MAX20030BATMD/V+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20030BATMD/V+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20030BATMD/V+T?
MAX20030BATMD/V+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20030BATMD/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 MAX20030BATMD/V+T?
For technical support, including MAX20030BATMD/V+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20030BATMD/V+T requirements.
6.How does Aetrix verify that MAX20030BATMD/V+T is sourced from the original manufacturer or authorized distributors?
All MAX20030BATMD/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 MAX20030BATMD/V+T meets industry standards.
7.What is the process for return or replacement of MAX20030BATMD/V+T?
All MAX20030BATMD/V+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX20030BATMD/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 MAX20030BATMD/V+T part is unused and in its original packaging.
Return procedure for MAX20030BATMD/V+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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