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Analog Devices Inc./Maxim Integrated MAX20075DATCA/V+
- Part No.:
- MAX20075DATCA/V+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 12-WFDFN Exposed Pad
- Datasheet:
-
MAX20075DATCA/V+.pdf
- Description:
- IC REG BUCK ADJ 600MA 12TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:115
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Product details
Overview
The MAX20075DATCA/V+ from Analog Devices is a 36V-input, 0.6A synchronous buck converter with integrated high-side and low-side MOSFETs, 2.1MHz fixed switching frequency, ±2% output voltage accuracy (for 5V/3.3V fixed options), and 3.5µA quiescent current in standby mode - designed for automotive power rails requiring high efficiency across wide input ranges and ultra-low sleep-current operation.
For engineers reviewing the MAX20075DATCA/V+ datasheet, MAX20075DATCA/V+ pinout, MAX20075DATCA/V+ application, or MAX20075DATCA/V+ equivalent, this device delivers verified 99% dropout capability, AEC-Q100 qualification, 40V load-dump protection, and spread-spectrum EMI reduction - critical for automotive infotainment, ADAS camera modules, and industrial sensor nodes where board space, thermal headroom, and regulatory emissions compliance are constrained.
Technical Context
This current-mode-controlled buck regulator operates from 3.5V to 36V input, supports fixed 5V/3.3V outputs or externally adjustable 3V–10V via resistor divider, and maintains regulation down to 20ns minimum on-time - enabling direct step-down from automotive battery to sub-3V logic rails without cascaded converters. Its internal 5V BIAS LDO powers control circuitry and enables EN-level compatibility up to 36V.
It features dual operating modes: skip mode (SYNC grounded) for ultra-low IQ at light loads, and forced-PWM (SYNC tied to BIAS) for constant-frequency EMI control. PGOOD monitoring, thermal shutdown at 175°C, and cycle-by-cycle overcurrent protection (1.2A typ limit) are fully integrated - eliminating external fault management components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.5V to 36V - supports cold-crank (4.5V) and load-dump (40V transient) conditions per ISO 7637-2 without external clamping. |
| Output Current | 0.6A continuous - sufficient for powering microcontrollers, CAN transceivers, and image sensors in compact automotive ECUs. |
| Switching Frequency | 2.1MHz (±6% with spread spectrum) - enables use of ≤4.7µH inductors and <22µF ceramic output capacitors for minimal footprint. |
| Quiescent Current | 3.5µA at no load in standby - extends battery life in always-on vehicle systems such as telematics and alarm controllers. |
| Output Accuracy | ±2% for 5V/3.3V fixed outputs - ensures reliable logic-level compliance for 3.3V I/O and 5V analog front-ends without trimming. |
| Minimum On-Time | 66ns - allows direct 12V-to-3.3V conversion at 2.1MHz without pulse-skipping artifacts or instability. |
| Duty Cycle Max | 99% - sustains regulation during automotive brownout (e.g., 5.5V input → 5V output) with minimal voltage drop. |
Pinout & Package
MAX20075DATCA/V+ is housed in a 3mm × 3mm, 12-pin TDFN package with exposed pad (package code TD1233+2C), optimized for thermal dissipation in high-density automotive PCBs. The side-wettable variant supports automated optical inspection (AOI) of solder joints.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 SPS | Spread-spectrum enable | Logic-high activates ±6% frequency modulation to reduce peak EMI emissions; internal 1MΩ pulldown ensures default disable. |
| 2 EN | High-voltage enable input | Accepts 0–36V logic; no internal pullup/pulldown - enables direct connection to MCU GPIO or automotive KEY signal without level-shifting. |
| 3 BST | Bootstrap capacitor node | Requires 0.1µF ceramic cap to LX; sustains gate drive for high-side FET during 99% duty-cycle dropout operation. |
| 4 SUP | Main supply input | Connects to 3.5–36V source; bypassed with 4.7µF ceramic to PGND for stable high-frequency decoupling. |
| 5 LX | Switch node | Drives external 4.7µH inductor; internal clamp diodes protect against inductive kickback during startup/faults. |
| 6 PGND | Power ground | Separate return path for LX current and high-frequency switching noise - must be isolated from AGND except at single-point star ground. |
| 7 AGND | Analog ground | Reference for FB, PGOOD, and internal error amplifier - routed under IC body to minimize noise coupling into feedback loop. |
| 8 FB | Feedback input | 1.0V reference threshold; connects to resistor divider for adjustable outputs or to BIAS for fixed 5V/3.3V configuration. |
| 9 OUT | Regulated output | Bypassed with 22µF ceramic to PGND; supplies downstream logic or analog circuitry with low-noise, tightly regulated DC. |
| 10 BIAS | Internal 5V LDO output | Provides bias for internal circuitry and can source external pullup for PGOOD; requires ≥1µF ceramic to AGND. |
| 11 SYNC | Mode selection/synchronization | Ground = skip mode (low IQ); BIAS = forced PWM (fixed frequency); open = skip mode with internal 1MΩ pulldown. |
| 12 PGOOD | Open-drain power-good flag | Asserts high when VOUT > 93.5% nominal; sinks 1mA at 0.4V - used for processor reset sequencing and system health monitoring. |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous Buck Architecture | Integrated 300mΩ HS / 200mΩ LS MOSFETs eliminate external switch losses and reduce BOM count by 4+ components versus controller-based designs. |
| AEC-Q100 Qualified | Rated for -40°C to +125°C ambient operation with full characterization - meets automotive reliability requirements without derating. |
| 40V Load-Dump Protection | Withstands ISO 7637-2 Pulse 5a (40V/100ms) without latch-up or damage - eliminates need for external TVS in most 12V systems. |
| Fixed 2.5ms Soft-Start | Prevents inrush current into large output capacitors; restarts automatically after short-circuit removal - simplifies system-level fault recovery. |
| PGOOD + High-Voltage EN | Enables robust power sequencing with microcontrollers and supports direct interface to automotive wake-up signals (e.g., CAN bus activity). |
Applications
| Automotive Infotainment Power | ADAS Camera Module Supply |
|---|---|
|
Use Scenario: Powers SoC, DDR memory, and display interface in head-unit systems with variable battery voltage (6–16V) and strict EMC limits. IC Role / Device Role / Timing Role: Primary 5V/3.3V point-of-load regulator delivering clean, sequenced power with PGOOD confirmation before SoC boot. Use Value: 2.1MHz operation avoids AM band interference; spread-spectrum reduces radiated emissions below CISPR 25 Class 5 limits. |
Use Scenario: Supplies image sensor, ISP, and serializer in rear-view or surround-view cameras mounted in hot under-hood environments. IC Role / Device Role / Timing Role: High-efficiency 3.3V rail generator with 99% dropout support for operation during engine cranking (5.5V battery). Use Value: 3.5µA standby IQ preserves battery during vehicle sleep; AEC-Q100 qualification ensures 15-year field reliability. |
| Industrial Sensor Node | Telematics Control Unit (TCU) |
|
Use Scenario: Powers low-power MCU, LoRa/Wi-Fi radio, and analog sensor front-end in battery-operated remote monitoring devices. IC Role / Device Role / Timing Role: Primary DC-DC converter enabling multi-year battery life via ultra-low IQ and adaptive skip-mode operation. Use Value: 66ns min on-time allows direct 12V-to-3.3V conversion without secondary stage - reducing size, cost, and failure points. |
Use Scenario: Generates 3.3V and 5V rails for cellular modem, GNSS receiver, and CAN controller in always-connected fleet management units. IC Role / Device Role / Timing Role: Dual-rail capable buck converter supporting independent enable/control of multiple subsystems via EN and PGOOD. Use Value: 40V transient tolerance eliminates external protection; thermal shutdown prevents thermal runaway in sealed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX20076DATCA/V+ | 1.2A output current, identical pinout and package; shares same 2.1MHz frequency, 3.5µA IQ, and AEC-Q100 rating. | Required where higher load current (e.g., multi-core MCU or dual-sensor payloads) exceeds 0.6A capability of MAX20075DATCA/V+. | Select MAX20076DATCA/V+ only if sustained >600mA load is confirmed; otherwise MAX20075DATCA/V+ offers better light-load efficiency and lower cost. |
| LM61480QRTWRQ1 | 3.5V–36V input, 0.8A output, 2.1MHz, but lacks spread-spectrum and has 10µA IQ; uses different pinout and 10-pin WSON package. | Used in non-EMI-critical automotive modules where layout flexibility outweighs radiated emissions performance. | Choose LM61480QRTWRQ1 only if board redesign is acceptable and spread-spectrum EMI suppression is not required per CISPR 25 testing. |
Compared with MAX20076DATCA/V+, the MAX20075DATCA/V+ trades output current for superior light-load efficiency and smaller solution size; versus LM61480QRTWRQ1, it provides tighter EMI control and lower quiescent current at the cost of pinout compatibility.
Availability
MAX20075DATCA/V+ is available at Aetrix Electronics and suitable for automotive infotainment, ADAS camera modules, and industrial sensor nodes requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant performance.
Supply support for MAX20075DATCA/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
Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving automotive, industrial, communications, and healthcare markets since 1965.
The MAX20075D/MAX20076D family was engineered specifically for automotive power management - delivering ultra-low IQ, high-voltage resilience, and AEC-Q100 reliability in miniature TDFN packages for space-constrained ECU designs.
FAQ
What is the maximum input voltage the MAX20075DATCA/V+ can withstand during load-dump events?
The MAX20075DATCA/V+ is rated for 40V transient input per ISO 7637-2 Pulse 5a. This means it can survive automotive load-dump surges without external protection components - a key advantage over standard 36V-rated buck converters that require TVS diodes. The device remains functional and undamaged during these events, ensuring system uptime in harsh vehicle environments.
Does the MAX20075DATCA/V+ support adjustable output voltages, and what is the supported range?
Yes, the MAX20075DATCA/V+ supports externally adjustable output voltages from 3V to 10V using a resistor divider connected between OUT and FB. For fixed outputs, it ships factory-trimmed to 5V or 3.3V. The FB pin has a precise 1.0V reference with ±1.5% accuracy, enabling stable regulation across temperature and line variations - critical for powering sensitive analog or mixed-signal circuits.
How does the MAX20075DATCA/V+ achieve ultra-low quiescent current, and what is its typical value?
The MAX20075DATCA/V+ achieves 3.5µA typical quiescent current in standby mode by disabling its internal high-voltage LDO and most control circuitry when output load falls below ~5mA. In this state, VBIAS is supplied from the output rail, minimizing input current draw - essential for always-on automotive systems like telematics and alarm controllers where battery drain must be minimized over months of vehicle dormancy.
Is the MAX20075DATCA/V+ pin-compatible with other members of the MAX20075D/MAX20076D family?
Yes, the MAX20075DATCA/V+ shares identical pinout, package (12-pin TDFN), and footprint with MAX20076DATCA/V+ and MAX20075DATCB/V+. This allows direct substitution in existing layouts when upgrading or downgrading output current capability - provided external components (inductor, output capacitor) are validated for the new current rating and thermal profile.
What protection features are integrated into the MAX20075DATCA/V+?
The MAX20075DATCA/V+ integrates cycle-by-cycle overcurrent protection (1.2A typical limit), thermal shutdown at 175°C, input undervoltage lockout (2.73V), and output PGOOD monitoring. It also features built-in 40V transient tolerance and 99% dropout operation - eliminating the need for external fault-handling circuitry in most automotive and industrial applications.
MAX20075DATCA/V+ 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
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 3.5V
- Voltage - Input (Max):
- 40V
- Voltage - Output (Min/Fixed):
- 1V
- Voltage - Output (Max):
- 10V
- Current - Output:
- 600mA
- Frequency - Switching:
- 2.1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 12-TDFN (3x3)
MAX20075DATCA/V+ FAQ
1.How can I place an order for MAX20075DATCA/V+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20075DATCA/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 MAX20075DATCA/V+ reliable?
The price and inventory of MAX20075DATCA/V+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX20075DATCA/V+ is usually 5 days.
3.What payment methods are accepted for MAX20075DATCA/V+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20075DATCA/V+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20075DATCA/V+?
MAX20075DATCA/V+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20075DATCA/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 MAX20075DATCA/V+?
For technical support, including MAX20075DATCA/V+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20075DATCA/V+ requirements.
6.How does Aetrix verify that MAX20075DATCA/V+ is sourced from the original manufacturer or authorized distributors?
All MAX20075DATCA/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 MAX20075DATCA/V+ meets industry standards.
7.What is the process for return or replacement of MAX20075DATCA/V+?
All MAX20075DATCA/V+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX20075DATCA/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 MAX20075DATCA/V+ part is unused and in its original packaging.
Return procedure for MAX20075DATCA/V+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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