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Analog Devices Inc./Maxim Integrated MAX20030BATMB/V+
- Part No.:
- MAX20030BATMB/V+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- -
- Datasheet:
-
MAX20030BATMB/V+.pdf
- Description:
- IC REG BUCK-BOOST
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Inventory:2,279
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Product details
Overview
MAX20030BATMB/V+ 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. It operates from 3.5V to 42V input, sustains regulation down to 2V battery during cold-crank, delivers fixed 5V/3.3V outputs with ±1% feedback accuracy, and achieves 17µA quiescent current with only Buck1 enabled - designed for instrument cluster and head-unit power rails in harsh automotive environments.
For engineers reviewing the MAX20030BATMB/V+ datasheet, MAX20030BATMB/V+ pinout, MAX20030BATMB/V+ application, or MAX20030BATMB/V+ equivalent, key selection considerations include cold-crank resilience (2V VIN support), resistor-programmable switching frequency (220kHz–2.2MHz), spread-spectrum EMI reduction, thermally enhanced 48-pin TQFN package, and integrated protection including cycle-by-cycle current limit and thermal shutdown.
Technical Context
The MAX20030BATMB/V+ implements three independent current-mode controllers: two out-of-phase buck channels (180° phase shift) for reduced input ripple and EMI, and a dedicated synchronous boost controller activated below ~6V to maintain VOUT1/VOUT2 regulation. Its preboost architecture uses TERM-switched feedback and CS3P/CS3N sensing to sustain operation at 2V input while delivering up to 10A per buck channel.
Control logic includes three operating modes selectable via FSYNC: forced PWM for low-noise applications, skip mode for ultra-low IQ (25µA with Buck2 + LDO active), and external synchronization. The IC integrates a 5V BIAS LDO, EXTVCC input for alternate biasing, and PGOOD monitoring with 95% rising threshold and 20µs debounce - all qualified for -40°C to +125°C automotive operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.5V to 42V normal operation; extends to 2V with preboost enabled - ensures uninterrupted power during automotive cold-crank events. |
| Quiescent Current (IQ) | 17µA with 3.3V Buck enabled; 65µA with all controllers active - enables always-on systems meeting OEM standby power budgets. |
| Switching Frequency | Resistor-programmable 220kHz to 2.2MHz; ±6% spread-spectrum option - avoids AM band interference and allows compact 2.2µH inductors. |
| Output Accuracy | ±1% over temperature for VOUT1 (5V) and VOUT2 (3.3V); 0.99V–1.01V FB reference - guarantees stable microcontroller and display rail voltages. |
| Thermal Performance | θJA = 23.3°C/W on 4-layer board; thermal shutdown at 170°C with 20°C hysteresis - supports high-power density layouts in confined automotive enclosures. |
| Protection Features | Cycle-by-cycle current limiting, overvoltage lockout (109% nominal), undervoltage lockout (BIAS UVLO at 3.25V rising), short-circuit and thermal shutdown - eliminates need for external fault-handling circuitry. |
Pinout & Package
MAX20030BATMB/V+ is housed in a thermally enhanced 7mm × 7mm, 48-pin TQFN package with exposed pad (EP = GND), outline number 21-0144, land pattern 90-0464. The package supports high-current routing and efficient heat dissipation in automotive PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Main supply input | Accepts 3.5V–42V; connects to preboost output to feed dual buck controllers - critical for cold-crank continuity. |
| EN1, EN2, EN3, EN4 | Digital enable inputs | Active-high, HV-tolerant (up to 42V); EN3 supports precision threshold for boost activation; EN4 controls 200mA LDO - enables flexible power sequencing. |
| FB1, FB2, FB3, FB4 | Feedback inputs | FB1/FB2 set 5V/3.3V outputs (or adjustable 1V–10V); FB3 regulates preboost to 1.005V; FB4 programs LDO output (5V/3.3V factory-set) - provides precise closed-loop control per rail. |
| LX1, LX2, LX3 | Power switch nodes | Connect to buck/boost inductor switches; each serves as return path for respective DH gate driver - requires low-inductance layout to minimize switching loss. |
| PGOOD1, PGOOD2 | Open-drain power-good outputs | Assert low during soft-start, fault, or undervoltage; 95% rising threshold with 20µs debounce - enables safe system boot and fault reporting. |
| FOSC, FSYNC, SPS | Frequency control pins | FOSC sets switching frequency via resistor; FSYNC enables sync-to-external-clock or mode selection; SPS enables/disables spread spectrum - central to EMI compliance strategy. |
Key Features
| Feature | Design Value |
|---|---|
| Preboost controller with TERM switch | Enables regulation at 2V input by dynamically adjusting feedback divider - essential for engine stop-start and cold-crank survival without external boost IC. |
| 180° out-of-phase dual buck operation | Reduces RMS input current ripple by ~30% vs. in-phase design - lowers bulk capacitor stress and EMI filter size in distributed power systems. |
| 50ns minimum on-time (buck) | Guarantees stable 3.3V output from 12V battery at 2.2MHz without pulse-skipping - preserves constant-frequency operation for noise-sensitive radio bands. |
| Integrated 5V BIAS LDO + EXTVCC option | Eliminates need for external bias supply; EXTVCC bypasses internal LDO when 3.25V–5.5V is available - improves efficiency in multi-rail systems. |
| Thermally optimized 48-pin TQFN | θJC = 1°C/W enables direct heat transfer to PCB ground plane - sustains full load at +125°C ambient without derating in instrument cluster modules. |
Applications
| Instrument Cluster Power Supply | Navigation Head Unit Front-End |
|---|---|
Use Scenario: Powering MCU, TFT display, CAN transceiver, and backlight drivers in digital dashboards subjected to 2V cold-crank and load-dump transients. IC Role / Device Role / Timing Role: Quad-output PMIC providing isolated, sequenced 5V (MCU core), 3.3V (peripherals), boosted 8–10V (backlight), and 5V/3.3V LDO (low-noise analog). Use Value: Preboost maintains 5V/3.3V regulation during cranking; PGOOD signals enable safe MCU reset; thermal robustness prevents shutdown in sealed enclosures. |
Use Scenario: Supplying SoC, audio codec, GPS receiver, and touch controller in infotainment head units requiring low EMI and wide VIN range. IC Role / Device Role / Timing Role: Dual-phase buck regulators deliver 5V/3.3V system rails; spread-spectrum and 2.2MHz operation suppress AM-band interference near FM radio front-end. Use Value: Resistor-programmable frequency avoids sensitive bands; 17µA IQ extends battery backup time; integrated OVP/UVP protects against alternator faults. |
| Distributed Automotive DC System | ADAS Camera Module Power |
Use Scenario: Centralized power node distributing regulated rails to multiple ECUs (e.g., body control, HVAC, lighting) across vehicle wiring harness. IC Role / Device Role / Timing Role: High-efficiency front-end converter feeding downstream point-of-load regulators; preboost ensures continuous operation during battery voltage sag. Use Value: 97% max duty cycle supports dropout operation; 42V absolute max rating withstands 36V load-dump pulses; dual-buck phase interleaving reduces input capacitance. |
Use Scenario: Compact power solution for 5MP camera modules mounted behind rearview mirror, exposed to under-hood temperature extremes. IC Role / Device Role / Timing Role: Single-chip source for image sensor (3.3V), ISP (1.2V via external regulator), and interface (1.8V) - leveraging LDO and buck outputs. Use Value: -40°C to +125°C qualification ensures reliability; 200mA LDO powers low-noise analog circuits; minimal external components reduce board area in space-constrained modules. |
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 |
|---|---|---|---|
| MAX20031BATMB/V+ | Same pinout and feature set; differs only in EN3 logic polarity (active-low vs. MAX20030's active-high) and minor BIAS UVLO hysteresis. | Requires matching EN3 control signal polarity; otherwise drop-in compatible in cold-crank designs using preboost. | Select MAX20031BATMB/V+ only if hardware-level EN3 inversion is preferred for fail-safe boost enable behavior. |
| TPS65321C-Q1 | Triple-output (2 buck + LDO), no preboost; 2.2MHz max frequency; 35µA IQ with all rails active; 40-pin QFN. | Lacks 2V cold-crank capability; suitable for non-critical loads where preboost is unnecessary. | Choose TPS65321C-Q1 for cost-sensitive, lower-power modules without stringent crank requirements - but verify cold-crank margin externally. |
Compared with MAX20031BATMB/V+, the original MAX20030BATMB/V+ offers deterministic active-high EN3 control ideal for simple microcontroller GPIO drive, while TPS65321C-Q1 trades preboost capability for smaller footprint and lower cost in less demanding automotive domains.
Availability
MAX20030BATMB/V+ is available at Aetrix Electronics and suitable for instrument cluster, navigation head unit, and ADAS camera module designs requiring stable component supply across extended automotive temperature and voltage ranges.
Supply support for MAX20030BATMB/V+ 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, designs high-performance analog and mixed-signal ICs for automotive, industrial, and communications markets - emphasizing reliability, integration, and power efficiency.
The MAX20030/MAX20031 product line targets automotive front-end power conversion, integrating preboost, dual buck, and LDO functions into a single thermally robust package to simplify compliance with OEM cold-crank, EMI, and footprint requirements.
FAQ
What is the minimum input voltage supported by MAX20030BATMB/V+ during cold-crank conditions?
The MAX20030BATMB/V+ maintains regulation down to 2V input when the preboost controller is enabled - verified across -40°C to +125°C. This capability is achieved through dynamic feedback adjustment via the TERM pin and synchronous boost operation, ensuring uninterrupted power to critical 5V and 3.3V rails during automotive cranking events.
How does the spread-spectrum feature of MAX20030BATMB/V+ reduce EMI in automotive radio systems?
The MAX20030BATMB/V+ implements ±6% frequency modulation on its switching clock via the SPS pin, spreading energy across a 120kHz bandwidth around the base frequency. This directly lowers peak radiated emissions in the AM band (530–1710kHz), enabling compliance without additional shielding or ferrite beads - especially effective when combined with 2.2MHz operation to avoid the band entirely.
Can MAX20030BATMB/V+ generate a 3.3V output from the LDO, or is it fixed at 5V?
The MAX20030BATMB/V+ LDO output is factory-configured as either 5V or 3.3V - the "B" suffix in MAX20030BATMB/V+ indicates the 3.3V LDO variant. Output voltage is set by internal resistor divider; FB4 is provided for external adjustment if required, supporting 1.5V–10V range with external resistors.
What is the purpose of the TERM pin on MAX20030BATMB/V+, and how must it be connected?
The TERM pin on MAX20030BATMB/V+ is a ground-switch terminal used exclusively by the preboost controller's feedback network. When EN3 is low, TERM opens to disconnect the lower leg of the boost feedback divider; when EN3 is high, TERM closes to GND. It must be connected to PGND3 (not AGND) and routed with low-inductance layout to ensure accurate boost voltage regulation during cold-crank.
Does MAX20030BATMB/V+ support external synchronization of its switching frequency, and what are the valid input ranges?
Yes, MAX20030BATMB/V+ supports external synchronization via the FSYNC pin. Valid sync frequencies are 1.8–2.6MHz (with RFOSC = 12kΩ) or 250–550kHz (with RFOSC = 70kΩ), requiring minimum pulse width of 150ns. FSYNC also selects operating mode: high = forced PWM, low = skip mode, and toggling = sync mode - enabling dynamic EMI/noise optimization.
MAX20030BATMB/V+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- *
- Package/Case:
- -
- Packaging:
- Strip
- 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:
- -
MAX20030BATMB/V+ FAQ
1.How can I place an order for MAX20030BATMB/V+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20030BATMB/V+ 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 MAX20030BATMB/V+ reliable?
The price and inventory of MAX20030BATMB/V+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX20030BATMB/V+ is usually 5 days.
3.What payment methods are accepted for MAX20030BATMB/V+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20030BATMB/V+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20030BATMB/V+?
MAX20030BATMB/V+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20030BATMB/V+ 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 MAX20030BATMB/V+?
For technical support, including MAX20030BATMB/V+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20030BATMB/V+ requirements.
6.How does Aetrix verify that MAX20030BATMB/V+ is sourced from the original manufacturer or authorized distributors?
All MAX20030BATMB/V+ 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 MAX20030BATMB/V+ meets industry standards.
7.What is the process for return or replacement of MAX20030BATMB/V+?
All MAX20030BATMB/V+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX20030BATMB/V+, 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 MAX20030BATMB/V+ part is unused and in its original packaging.
Return procedure for MAX20030BATMB/V+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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