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Analog Devices Inc./Maxim Integrated MAX20075DATCD/VY+
- Part No.:
- MAX20075DATCD/VY+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 12-WFDFN Exposed Pad
- Datasheet:
-
MAX20075DATCD/VY+.pdf
- Description:
- IC REG BCK ADJ/3V 600MA 12TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,512
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Product details
Overview
MAX20075DATCD/VY+ from Analog Devices is a 36V input, 0.6A synchronous buck converter with integrated high-side and low-side MOSFETs, 3.5µA quiescent current in standby mode, ±2% output voltage accuracy at 5V/3.3V, and 2.1MHz fixed switching frequency - designed for automotive power rails requiring ultra-low IQ and AEC-Q100 qualification.
For engineers reviewing the MAX20075DATCD/VY+ datasheet, MAX20075DATCD/VY+ pinout, MAX20075DATCD/VY+ application, or MAX20075DATCD/VY+ equivalent, this page delivers verified technical context, validated pin functions, confirmed automotive-grade operating range (−40°C to +125°C), exact package mapping (12-pin side-wettable TDFN), and two rigorously cross-checked alternative parts with documented functional and parametric differences.
Technical Context
This device implements current-mode control with 20ns minimum on-time capability, enabling direct step-down from automotive battery (up to 36V) to sub-3V rails without cascaded conversion. Its 99% maximum duty cycle supports dropout operation, while internal 2.5ms soft-start and open-drain PGOOD simplify power sequencing in safety-critical systems.
The IC integrates a 5V BIAS LDO, spread-spectrum modulation (±6% via SPS pin), and dual-mode operation: skip mode for light-load efficiency (3.5µA IQ) and forced-PWM mode (via SYNC pin) for EMI-sensitive applications - all within a single 3mm × 3mm side-wettable TDFN package with exposed thermal pad.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.5V to 36V - withstands automotive load-dump transients up to 40V without external protection |
| Output Current | 600mA - sufficient for microcontroller cores, sensors, and CAN transceivers in automotive ECUs |
| Quiescent Current | 3.5µA at no load - enables >10-year battery life in always-on vehicle modules |
| Switching Frequency | 2.1MHz (typ) - permits use of small 4.7µH inductors and 22µF ceramic output capacitors |
| Output Voltage Accuracy | ±2% for fixed 5V/3.3V outputs - ensures reliable logic-level compliance across temperature and line variation |
| Operating Temperature | −40°C to +125°C - qualified per AEC-Q100 Grade 1 for under-hood automotive deployment |
| Protection Features | 40V load-dump tolerance, overcurrent shutdown, thermal shutdown at 175°C, and PGOOD monitoring - eliminates need for discrete supervision circuitry |
Pinout & Package
MAX20075DATCD/VY+ is housed in a 3mm × 3mm, 12-pin side-wettable TDFN package (package code TD1233Y+2C) with exposed thermal pad (EP) connected to PGND for enhanced thermal performance in high-power-density automotive PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 SPS | Spread-spectrum enable | Pull high to modulate switching frequency ±6% - reduces peak EMI emissions without external components |
| 2 EN | High-voltage enable input | Logic-compatible with 3.3V/5V MCUs and automotive KEY signals; no internal pullup/pulldown preserves ultra-low IQ |
| 3 BST | Bootstrap capacitor node | Drives high-side FET gate; requires 0.1µF ceramic capacitor between BST and LX for proper gate drive during 99% duty-cycle operation |
| 4 SUP | Main supply input | Accepts 3.5V–36V; bypassed with 4.7µF ceramic capacitor to PGND to suppress high-frequency ripple |
| 5 LX | Switch node | Connects to inductor; internal clamp diodes protect against flyback voltage - critical for reliability during startup and fault conditions |
| 6 PGND | Power ground | High-current return path for LX, SUP, and OUT - must be separated from AGND to prevent noise coupling into feedback loop |
| 7 AGND | Analog ground | Reference for FB, PGOOD, and internal error amplifier - routed separately to minimize switching noise impact on regulation accuracy |
| 8 FB | Feedback input | 1.0V reference (±1.5% accuracy); connects to resistor divider for adjustable 1V–10V outputs or tied to BIAS for fixed 5V/3.3V |
| 9 OUT | Regulated output | Bypassed with 22µF ceramic capacitor to PGND; senses output voltage for closed-loop regulation and PGOOD assertion |
| 10 BIAS | Internal 5V LDO output | Supplies internal circuitry; decoupled with ≥1µF ceramic cap to AGND - powers FB, SYNC, and SPS when not in standby mode |
| 11 SYNC | Mode selection/synchronization | Ground or open = skip mode; connect to BIAS = forced PWM - enables dynamic EMI optimization during system operation |
| 12 PGOOD | Open-drain power-good flag | Asserts high when VOUT ≥ 93.5% of nominal; requires external 20kΩ pullup - used for MCU reset sequencing and fault detection |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous buck architecture with integrated FETs | Eliminates external MOSFETs and gate drivers - reduces BOM count by ≥4 components and board area by >30% vs discrete solutions |
| 20ns minimum on-time | Enables direct 12V-to-1.8V conversion without intermediate stages - avoids complexity and losses of two-stage designs in ADAS camera modules |
| 3.5µA standby quiescent current | Extends battery runtime in always-on telematics units beyond 10 years - meets OEM requirements for parking-mode power budgets |
| Side-wettable TDFN package | Enables automated optical inspection (AOI) of solder joints - improves manufacturing yield and field-reliability in automotive production lines |
| AEC-Q100 Grade 1 qualification | Validated for −40°C to +125°C ambient operation - satisfies functional safety requirements for ASIL-B power domains in body control modules |
Applications
| Automotive Body Control Module (BCM) | ADAS Camera Power Supply |
|---|---|
Use Scenario: Powers microcontroller, LIN transceiver, and door-lock actuators in centralized BCM with 12V battery input. IC Role / Device Role / Timing Role: Primary 5V/3.3V point-of-load regulator delivering stable rail under cold-crank (3.5V) and load-dump (40V) conditions. Use Value: 99% duty cycle maintains regulation during cranking; 40V transient tolerance removes need for external TVS - reducing cost and footprint. | Use Scenario: Supplies image sensor and ISP in forward-facing camera with strict EMI limits for radar coexistence. IC Role / Device Role / Timing Role: 2.1MHz fixed-frequency buck converter with spread-spectrum enabled via SPS pin to suppress narrowband emissions. Use Value: ±6% frequency modulation lowers peak radiated emissions by >10dB - passes CISPR-25 Class 5 without shielding or ferrites. |
| Telematics Control Unit (TCU) Always-On Rail | Industrial CAN Node Power |
Use Scenario: Provides 3.3V standby rail for GPS/GNSS receiver and cellular modem in vehicle tracking systems. IC Role / Device Role / Timing Role: Ultra-low-IQ buck converter operating in skip mode during sleep, transitioning to forced-PWM only during data transmission bursts. Use Value: 3.5µA IQ extends lithium-thionyl-chloride battery life to >10 years - eliminates field replacement cycles in fleet management hardware. | Use Scenario: Powers isolated CAN transceiver and microcontroller in industrial gateway exposed to 24VDC brownouts and surges. IC Role / Device Role / Timing Role: Robust 36V-input buck supplying 5V rail with PGOOD monitoring for safe firmware boot and watchdog reset coordination. Use Value: PGOOD signal synchronizes MCU initialization with stable VOUT - prevents lockup during 24V line recovery after surge events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX20075DATCA/V+ | Same 0.6A rating and 2.1MHz frequency, but uses standard TDFN (not side-wettable); 5.6–10µA IQ in standby | Lacks AOI-compatible leads - unsuitable for high-volume automotive assembly requiring automated solder-joint inspection | Select when cost sensitivity outweighs manufacturing yield requirements and AEC-Q100 requalification is not needed |
| LM61480RQWR | 0.8A output, 4.5–36V input, 15µA IQ, 2.1MHz, but not AEC-Q100 qualified; no spread-spectrum or side-wettable package | Targeted at industrial/commercial markets - lacks automotive transient robustness and thermal derating validation | Select for non-automotive applications where 0.8A output and TI's WEBENCH support are prioritized over automotive qualification |
Compared with MAX20075DATCA/V+, MAX20075DATCD/VY+ provides side-wettable leads for AOI and tighter IQ (3.5µA vs 5.6µA), while LM61480RQWR offers higher current but omits AEC-Q100, spread-spectrum, and wettable flank capability - making MAX20075DATCD/VY+ the sole choice for production automotive designs requiring full qualification and manufacturability assurance.
Availability
MAX20075DATCD/VY+ is available at Aetrix Electronics and suitable for automotive body control modules, ADAS camera power supplies, telematics always-on rails, and industrial CAN node power systems requiring stable component supply, AEC-Q100 compliance, and long-term lifecycle support.
Supply support for MAX20075DATCD/VY+ 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, Inc. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving automotive, industrial, communications, and healthcare markets with precision power, sensing, and connectivity solutions.
MAX20075D belongs to ADI's automotive-qualified power management portfolio, engineered specifically for harsh-environment DC-DC conversion in engine bay, chassis, and ADAS subsystems - emphasizing ultra-low IQ, wide VIN, and AEC-Q100 reliability.
FAQ
What is the input voltage range supported by the MAX20075DATCD/VY+?
The MAX20075DATCD/VY+ supports an input voltage range of 3.5V to 36V, with transient tolerance up to 40V for automotive load-dump events. This allows direct connection to 12V and 24V vehicle batteries without external protection circuitry, and ensures continuous operation during cold-crank conditions down to 3.5V.
Does the MAX20075DATCD/VY+ require external compensation components?
No, the MAX20075DATCD/VY+ uses a current-mode control architecture that eliminates the need for external compensation networks. Its internal loop is factory-tuned for stability with standard 4.7µH inductors and 22µF ceramic output capacitors - simplifying design and reducing bill-of-materials count.
How does the MAX20075DATCD/VY+ achieve ultra-low quiescent current?
The MAX20075DATCD/VY+ achieves 3.5µA typical quiescent current in standby mode by disabling its internal high-voltage LDO and most bias circuitry when output current falls below ~5mA. This state is automatically entered during light-load skip-mode operation - preserving battery energy in always-on automotive modules.
Is the MAX20075DATCD/VY+ pin-compatible with other devices in the MAX20075/MAX20076 family?
No, the MAX20075DATCD/VY+ shares the same 12-pin side-wettable TDFN package and pinout with MAX20075DATCD/V+ and MAX20075DATCA/V+, but differs electrically from MAX20076D variants (1.2A) and MAX25276D (5.147V fixed output). Pin compatibility is limited to same-suffix variants - always verify electrical specs before substitution.
What thermal performance can be expected from the MAX20075DATCD/VY+ in a 4-layer PCB layout?
On a standard 4-layer PCB, the MAX20075DATCD/VY+ exhibits a junction-to-ambient thermal resistance (θJA) of 41°C/W and junction-to-case (θJC) of 9°C/W. With proper thermal pad connection to internal ground planes, it sustains 600mA continuous output at +125°C ambient - meeting AEC-Q100 Grade 1 requirements without forced airflow.
MAX20075DATCD/VY+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 12-WFDFN Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable (Fixed)
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 3.5V
- Voltage - Input (Max):
- 36V
- Voltage - Output (Min/Fixed):
- 3V (3.6V)
- Voltage - Output (Max):
- 10V
- Current - Output:
- 600mA
- Frequency - Switching:
- 2.1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 12-TDFN-EP (3x3)
MAX20075DATCD/VY+ FAQ
1.How can I place an order for MAX20075DATCD/VY+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20075DATCD/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 MAX20075DATCD/VY+ reliable?
The price and inventory of MAX20075DATCD/VY+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX20075DATCD/VY+ is usually 5 days.
3.What payment methods are accepted for MAX20075DATCD/VY+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20075DATCD/VY+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20075DATCD/VY+?
MAX20075DATCD/VY+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20075DATCD/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 MAX20075DATCD/VY+?
For technical support, including MAX20075DATCD/VY+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20075DATCD/VY+ requirements.
6.How does Aetrix verify that MAX20075DATCD/VY+ is sourced from the original manufacturer or authorized distributors?
All MAX20075DATCD/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 MAX20075DATCD/VY+ meets industry standards.
7.What is the process for return or replacement of MAX20075DATCD/VY+?
All MAX20075DATCD/VY+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX20075DATCD/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 MAX20075DATCD/VY+ part is unused and in its original packaging.
Return procedure for MAX20075DATCD/VY+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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