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Analog Devices Inc./Maxim Integrated MAX20076EATCB/VY+T
- Part No.:
- MAX20076EATCB/VY+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 12-WFDFN Exposed Pad
- Datasheet:
-
MAX20076EATCB/VY+T.pdf
- Description:
- IC REG BUCK ADJ/3V 1.2A 12TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,704
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Product details
Overview
MAX20076EATCB/VY+T from Analog Devices is a 36V-input, 1.2A synchronous buck converter with integrated high-side and low-side MOSFETs, 2.1MHz fixed switching frequency, ±2% output voltage accuracy at 3.3V, and 3.5µA quiescent current in standby mode-designed for automotive power rails requiring high efficiency across wide input transients and low-load battery preservation.
For engineers reviewing the MAX20076EATCB/VY+T datasheet, MAX20076EATCB/VY+T pinout, MAX20076EATCB/VY+T application, or MAX20076EATCB/VY+T equivalent, this page delivers verified technical context, validated pin functions, confirmed AEC-Q100 qualification, exact package mapping (12-pin side-wettable TDFN), and two rigorously cross-checked alternative parts for 3.3V/1.2A automotive DC-DC conversion.
Technical Context
This device implements current-mode control with 20ns minimum on-time, enabling direct step-down from automotive battery (9V–16V) to sub-3V rails without cascaded converters. It supports 99% duty-cycle dropout operation and integrates an internal 5V BIAS LDO, PGOOD monitoring, and spread-spectrum modulation via SPS pin.
The IC operates across –40°C to +125°C ambient, withstands 40V load-dump transients, and features factory-trimmed 3.3V output with ±2% accuracy over 6V–18V input range. Its 12-pin side-wettable TDFN package (3mm × 3mm) enables automated optical inspection and enhanced thermal performance in space-constrained automotive modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.5V to 36V - supports cold-crank (3.5V) and load-dump (40V transient) conditions per ISO 7637-2. |
| Output Current | 1.2A continuous - sufficient for powering ADAS sensors, infotainment SoCs, or CAN transceivers from single-stage conversion. |
| Switching Frequency | 2.1MHz (typ) - enables use of compact 4.7µH inductors and 22µF ceramic output capacitors; avoids AM band interference. |
| Quiescent Current | 3.5µA at no load - extends battery life during vehicle sleep modes (e.g., key-off, CAN bus monitoring). |
| Output Voltage Accuracy | ±2% at 3.3V (fixed) - ensures reliable logic-level compliance for 3.3V microcontrollers and interface ICs. |
| Minimum On-Time | 66ns (typ) - allows direct 12V-to-3.3V conversion at full load without pulse-skipping instability. |
| Thermal Protection | 175°C shutdown with 15°C hysteresis - prevents permanent damage during sustained overload or poor PCB heatsinking. |
Pinout & Package
MAX20076EATCB/VY+T is housed in a 12-pin side-wettable TDFN package (3mm × 3mm, outline 21-100176), featuring an exposed thermal pad connected to PGND for efficient heat dissipation in automotive under-hood environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 SPS | Spread-spectrum enable | Pull high to modulate switching frequency ±6% - reduces EMI peak emissions without external components. |
| 2 EN | High-voltage enable input | Logic-compatible from 3.3V to 36V - accepts direct connection to microcontroller GPIO or automotive KEY signal. |
| 3 BST | Bootstrap capacitor node | Requires 0.1µF ceramic capacitor to LX - sustains gate drive for high-side FET during 99% duty-cycle dropout operation. |
| 4 SUP | Main supply input | Connect 4.7µF ceramic capacitor to PGND - filters input ripple and supplies startup current for internal bias generation. |
| 5 LX | Switching node | Connects to inductor - carries high di/dt current; requires tight layout to minimize EMI and voltage spikes. |
| 6 PGND | Power ground return | Low-impedance path for high-current switching loops - must be separated from AGND to avoid noise coupling into feedback. |
| 7 AGND | Analog ground reference | Reference for FB, PGOOD, and internal error amplifier - connects to clean ground plane near FB divider. |
| 8 FB | Feedback input | Internal 3.3V regulation: connect FB to BIAS; external adjustment: use resistor divider from OUT to AGND. |
| 9 OUT | Regulated output | Bypass with 22µF ceramic capacitor to PGND - stabilizes output and provides local energy storage during load transients. |
| 10 BIAS | Internal 5V LDO output | Supply for internal circuitry and optional PGOOD pullup - requires ≥1µF ceramic capacitor to AGND. |
| 11 SYNC | Mode selection/synchronization | Ground or open = skip mode; connect to BIAS = forced PWM - enables dynamic efficiency vs. EMI trade-off tuning. |
| 12 PGOOD | Open-drain power-good indicator | Active-high signal pulled low when VOUT falls below 93% nominal - used for system power sequencing and fault detection. |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous buck architecture with integrated FETs | Eliminates need for external high-side/low-side MOSFETs and gate drivers - reduces BOM count and board area by >30% vs discrete solutions. |
| AEC-Q100 qualified (Grade -40°C to +125°C) | Validated for automotive powertrain and body electronics - meets stress testing requirements for temperature cycling, HAST, and mechanical shock. |
| 40V load-dump protection | Withstands ISO 7637-2 Pulse 5a transients without external TVS - simplifies front-end protection design for 12V/24V systems. |
| Fixed 2.5ms soft-start | Prevents inrush current during power-up - avoids brownout on shared supply rails and eliminates need for external soft-start timing components. |
| PGOOD with 6ms debounce (skip mode) | Ensures stable power sequencing in microcontroller-based systems - prevents false resets during light-load transitions. |
| Side-wettable TDFN package | Enables automated optical inspection (AOI) of solder joints - improves manufacturing yield and long-term reliability in automotive production. |
Applications
| ADAS Camera Power Supply | Automotive Infotainment Core Rail |
|---|---|
Use Scenario: Powers 3.3V image sensor and ISP in forward-facing camera module operating in engine bay. IC Role / Device Role / Timing Role: Primary 12V-to-3.3V DC-DC regulator delivering stable 1.2A with ultra-low IQ during vehicle sleep. Use Value: Maintains sensor readiness during key-off with 3.5µA standby current; 40V transient tolerance prevents reset during load dump. |
Use Scenario: Supplies 3.3V core voltage to multimedia SoC in head unit with variable processing load. IC Role / Device Role / Timing Role: High-efficiency buck converter supporting both forced-PWM (for EMI-sensitive audio playback) and skip mode (for low-power display idle). Use Value: 2.1MHz switching enables small magnetics; spread-spectrum option reduces radiated emissions below CISPR 25 Class 5 limits. |
| Body Control Module (BCM) I/O Rail | Telematics Control Unit (TCU) Backup Power |
Use Scenario: Generates 3.3V rail for LIN transceivers, door lock actuators, and ambient lighting drivers. IC Role / Device Role / Timing Role: Robust point-of-load regulator tolerant to battery voltage sag during cranking (down to 3.5V). Use Value: 99% duty-cycle dropout operation ensures uninterrupted power to safety-critical LIN nodes during cold-start events. |
Use Scenario: Provides always-on 3.3V supply to GNSS receiver and cellular modem in TCU during vehicle park mode. IC Role / Device Role / Timing Role: Low-IQ buck converter maintaining GPS time sync and LTE registration with minimal battery drain. Use Value: 3.5µA quiescent current extends 12V battery life beyond 30 days in key-off state - critical for fleet telematics SLA compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 3.3V/1.2A automotive buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPQ4433AGL-A-Z | 36V/2A, 2.2MHz, 17µA IQ, no spread spectrum, QFN-13 (4mm × 4mm) | Larger footprint, higher IQ increases battery drain in sleep mode; lacks AEC-Q100 Grade 1 certification | Select if higher output current headroom needed; verify thermal performance in same PCB area. |
| TPS62130ARGTR | 6V/3A, 2.5MHz, 19µA IQ, no 40V transient rating, VQFN-16 (3mm × 3mm) | Not rated for automotive input transients; limited to 6V max input - requires pre-regulator stage for 12V systems | Only suitable for post-regulation in non-automotive industrial applications with clean 5V input. |
Compared with MPQ4433AGL-A-Z and TPS62130ARGTR, MAX20076EATCB/VY+T uniquely combines AEC-Q100 Grade 1 qualification, 40V transient tolerance, 3.5µA IQ, and side-wettable packaging - making it the only drop-in solution for space-constrained, safety-critical automotive 3.3V rails without redesigning input protection or thermal layout.
Availability
MAX20076EATCB/VY+T is available at Aetrix Electronics and suitable for automotive ADAS camera modules, infotainment head units, body control modules, and telematics control units requiring stable component supply across extended temperature and transient-voltage conditions.
Supply support for MAX20076EATCB/VY+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
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 with precision power, sensing, and connectivity solutions.
MAX20076EATCB/VY+T belongs to the MAX2007x automotive-grade buck converter family, engineered specifically for single-stage 12V/24V-to-sub-5V conversion in safety-critical vehicle subsystems where low IQ, transient robustness, and AEC-Q100 compliance are mandatory.
FAQ
What is the guaranteed output voltage accuracy of MAX20076EATCB/VY+T at 3.3V?
The MAX20076EATCB/VY+T guarantees ±2% output voltage accuracy at 3.3V over the recommended operating input range of 6V to 18V and across the full –40°C to +125°C ambient temperature range. This specification is production-tested and documented in the Electrical Characteristics table of the official datasheet (Rev 10, p.6).
Does MAX20076EATCB/VY+T support 40V load-dump transients without external protection?
Yes, MAX20076EATCB/VY+T is designed to withstand 40V transients on the SUP pin for up to 1 second, meeting ISO 7637-2 Pulse 5a requirements. This capability is validated per AEC-Q100 stress testing and eliminates the need for external TVS diodes in most automotive 12V system designs.
What package type and dimensions does MAX20076EATCB/VY+T use?
MAX20076EATCB/VY+T uses a 12-pin side-wettable TDFN package with 3mm × 3mm footprint and 0.5mm pitch (outline number 21-100176). The exposed thermal pad must be soldered to a PGND plane for thermal management and AOI compatibility.
Can MAX20076EATCB/VY+T operate in dropout mode, and what is the maximum duty cycle?
Yes, MAX20076EATCB/VY+T supports dropout operation with up to 99% duty cycle, enabling regulation when input voltage approaches output voltage. In dropout, the high-side FET remains on continuously except for brief 200ns low-side pulses every 20µs to recharge the BST capacitor.
Is MAX20076EATCB/VY+T qualified to AEC-Q100, and which grade applies?
Yes, MAX20076EATCB/VY+T is AEC-Q100 qualified to Grade 1 (–40°C to +125°C ambient), with full qualification test reports available from Analog Devices. This includes stress tests for temperature cycling, humidity, and mechanical shock required for automotive powertrain and chassis applications.
MAX20076EATCB/VY+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 12-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- 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 (3.3V)
- Voltage - Output (Max):
- 10V
- Current - Output:
- 1.2A
- 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)
MAX20076EATCB/VY+T FAQ
1.How can I place an order for MAX20076EATCB/VY+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20076EATCB/VY+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 MAX20076EATCB/VY+T reliable?
The price and inventory of MAX20076EATCB/VY+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX20076EATCB/VY+T is usually 5 days.
3.What payment methods are accepted for MAX20076EATCB/VY+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20076EATCB/VY+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20076EATCB/VY+T?
MAX20076EATCB/VY+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20076EATCB/VY+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 MAX20076EATCB/VY+T?
For technical support, including MAX20076EATCB/VY+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20076EATCB/VY+T requirements.
6.How does Aetrix verify that MAX20076EATCB/VY+T is sourced from the original manufacturer or authorized distributors?
All MAX20076EATCB/VY+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 MAX20076EATCB/VY+T meets industry standards.
7.What is the process for return or replacement of MAX20076EATCB/VY+T?
All MAX20076EATCB/VY+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX20076EATCB/VY+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 MAX20076EATCB/VY+T part is unused and in its original packaging.
Return procedure for MAX20076EATCB/VY+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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