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Analog Devices Inc./Maxim Integrated MAX20076EATCB/VY+
- Part No.:
- MAX20076EATCB/VY+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 12-WFDFN Exposed Pad
- Datasheet:
-
MAX20076EATCB/VY+.pdf
- Description:
- IC REG BUCK ADJ 1.2A 12TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,403
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Product details
Overview
MAX20076EATCB/VY+ from Analog Devices is a 36V-input, 1.2A synchronous buck converter with integrated high-side and low-side MOSFETs, fixed 3.3V output (±2% accuracy), 2.1MHz switching frequency, 3.5µA quiescent current in standby mode, and AEC-Q100 qualification for automotive power rails. It delivers regulated 3.3V at up to 1.2A from 3.5V–36V input, supporting load-dump transients up to 40V.
For engineers reviewing the MAX20076EATCB/VY+ datasheet, MAX20076EATCB/VY+ pinout, MAX20076EATCB/VY+ application, or MAX20076EATCB/VY+ equivalent, this page provides verified technical context, validated pin functions, confirmed 3.3V fixed-output behavior, AEC-Q100 compliance status, and real-world EMI mitigation via spread-spectrum enable (SPS pin).
Technical Context
This device implements current-mode control with 20ns minimum on-time, enabling direct step-down from automotive battery (e.g., 12V or 24V) to sub-3V rails without cascaded conversion. Its 99% maximum duty cycle supports operation in dropout, while internal soft-start (2.5ms typ) and PGOOD monitoring simplify power sequencing in safety-critical systems.
The IC integrates a 5V BIAS LDO, uses an exposed-pad 12-pin TDFN package (3mm × 3mm), and features dual-mode operation: skip mode (EN high, SYNC grounded) for ultra-low IQ at light loads, and forced-PWM mode (SYNC tied to BIAS) for constant-frequency EMI control. Spread-spectrum modulation (±6% around 2.1MHz) is enabled via the SPS pin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3V ±2% over 6V–18V input range; confirmed for MAX20076EATCB/VY+ per Electrical Characteristics table |
| Max Output Current | 1.2A continuous; matches MAX20076D/MAX25276D family rating and is validated for this exact part number |
| Input Voltage Range | 3.5V to 36V operating; withstands 40V load-dump transients - critical for automotive front-end power |
| Quiescent Current | 3.5µA typical at no load in standby mode; enables always-on systems with minimal battery drain |
| Switching Frequency | 2.1MHz typical (1.925–2.275MHz range); enables compact 4.7µH inductor and low-ESR ceramic output capacitors |
| Operating Temperature | −40°C to +125°C ambient; qualified per AEC-Q100 Grade 1 for under-hood automotive use |
| Package | 12-pin side-wettable TDFN (3mm × 3mm), exposed pad; supports automated optical inspection (AOI) and thermal reliability |
Pinout & Package
MAX20076EATCB/VY+ uses a 12-pin side-wettable TDFN package (package code TD1233Y+2C, outline 21-100176) with exposed thermal pad connected to PGND. Pin numbering follows standard TDFN top-view layout (pin 1 = SPS, pin 12 = PGOOD, EP = exposed pad).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (SPS) | Spread-spectrum enable input | Logic-high enables ±6% frequency dithering to reduce EMI peaks; internal 1MΩ pulldown ensures default disable |
| 2 (EN) | High-voltage enable input | Active-high, compatible with 3.3V logic or automotive battery; no internal pullup/pulldown preserves ultra-low IQ |
| 3 (BST) | Bootstrap supply for high-side gate driver | Requires 0.1µF ceramic capacitor to LX; enables efficient high-side FET drive without external charge pump |
| 4 (SUP) | Main input supply rail | Accepts 3.5V–36V; requires 4.7µF ceramic bypass to PGND; handles 40V transient surges |
| 5 (LX) | Switch node | Connects to 4.7µH inductor; carries high di/dt switching current; internal clamp diodes protect against inductive kickback |
| 6 (PGND) | Power ground return | Low-impedance path for high-current switch node and input/output capacitors; separate from AGND |
| 7 (AGND) | Analog ground reference | Return for FB, SYNC, PGOOD, and bias circuitry; must be star-connected to PGND at single point |
| 8 (FB) | Feedback voltage sense | Internally tied to BIAS for fixed 3.3V output; externally configurable for 1V–10V using resistor divider |
| 9 (OUT) | Regulated output voltage | 3.3V output node; bypassed with 22µF ceramic capacitor to PGND; monitored by PGOOD |
| 10 (BIAS) | Internal 5V LDO output | Supplies internal circuitry; requires ≥1µF ceramic cap to AGND; powers SYNC/SPS logic when not in standby |
| 11 (SYNC) | Mode selection and synchronization input | Ground = skip mode; BIAS = forced PWM; open = skip mode; internal 1MΩ pulldown ensures defined state |
| 12 (PGOOD) | Open-drain power-good indicator | Active-high signal asserting VOUT ≥93.5% of nominal; requires external 20kΩ pullup; debounced 6ms for rising edge |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous buck with integrated FETs | Eliminates external MOSFETs and drivers; 300mΩ HS / 200mΩ LS RDS(on) enables >90% efficiency at 1.2A |
| AEC-Q100 Grade 1 qualification | Validated for −40°C to +125°C operation with 150°C junction limit; meets automotive reliability and stress test requirements |
| Ultra-low 3.5µA standby IQ | Extends battery life in always-on modules (e.g., telematics, ADAS sensors); achieved by disabling internal LDO in light-load skip mode |
| 20ns minimum on-time | Enables direct 12V→3.3V conversion without pre-regulator; avoids complexity and losses of two-stage designs |
| 99% max duty cycle in dropout | Maintains regulation during cold-crank (e.g., 6V input → 3.3V out); BST capacitor recharged every 20µs to sustain gate drive |
| Programmable spread-spectrum (SPS) | Reduces peak radiated emissions by spreading 2.1MHz fundamental across ±6% bandwidth; no external components required |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC I/O Power Supply |
|---|---|
Use Scenario: Powering microcontroller, CAN transceiver, and sensor interface in door module or lighting controller. IC Role / Device Role / Timing Role: Primary 3.3V rail generator from 12V battery; provides clean, sequenced, and monitored output. Use Value: AEC-Q100 qualification and 40V load-dump tolerance ensure uninterrupted operation during automotive transients. |
Use Scenario: Generating isolated 3.3V logic supply for digital I/O expansion cards in harsh factory environments. IC Role / Device Role / Timing Role: Compact, high-efficiency DC-DC stage replacing linear regulators to minimize heat buildup. Use Value: 3.5µA standby current extends uptime in battery-backed controllers; wide VIN accommodates unregulated industrial supplies. |
| ADAS Camera Power Management | Automotive Infotainment Display Backlight Bias |
Use Scenario: Supplying image sensor and ISP core voltage in rear-view or surround-view camera modules. IC Role / Device Role / Timing Role: Low-noise, fast-transient 3.3V source with PGOOD assertion for system boot validation. Use Value: 2.1MHz switching minimizes interference with image sensor analog signals; small 3mm×3mm footprint saves PCB area. |
Use Scenario: Providing stable 3.3V bias for display timing controller and touch interface in head-unit displays. IC Role / Device Role / Timing Role: Secondary power rail derived from main 5V or 12V domain; supports hot-plug and sleep/wake cycles. Use Value: Soft-start (2.5ms) prevents inrush current during display wake-up; spread-spectrum reduces EMI coupling into sensitive video lines. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX20076DATCB/V+ | Same 3.3V fixed output, identical 12-pin TDFN package, but rated for −40°C to +105°C (not AEC-Q100 qualified) | Targeted at industrial or commercial systems without automotive qualification requirements | Select MAX20076DATCB/V+ only if AEC-Q100 is not mandated and ambient temperature stays ≤+105°C |
| LM61480QRTWRQ1 | Texas Instruments' AEC-Q100 Grade 1 3.3V 1.5A buck; 2.1MHz fixed freq; 4.5µA IQ; different pinout and 16-pin WQFN package | Offers higher current and integrated compensation, but requires PCB redesign due to non-pin-compatible layout | Choose LM61480QRTWRQ1 when >1.2A output or enhanced fault diagnostics (e.g., thermal foldback) are required |
Compared with MAX20076DATCB/V+, the MAX20076EATCB/VY+ adds AEC-Q100 qualification and extended +125°C operation, making it suitable for under-hood deployment; versus LM61480QRTWRQ1, it offers smaller footprint and lower IQ but lacks built-in current-sense amplifiers and thermal warning flags.
Availability
MAX20076EATCB/VY+ is available at Aetrix Electronics and suitable for automotive body electronics, industrial programmable logic controllers, and ADAS camera power systems requiring stable component supply, AEC-Q100 compliance, and long-term production continuity.
Supply support for MAX20076EATCB/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. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving automotive, industrial, communications, and healthcare markets.
The MAX20076E series belongs to Analog Devices' automotive-grade power management portfolio, designed specifically for reliable, low-EMI DC-DC conversion in demanding vehicle subsystems such as body control, infotainment, and driver-assistance systems.
FAQ
What output voltage does the MAX20076EATCB/VY+ deliver?
The MAX20076EATCB/VY+ delivers a factory-trimmed fixed 3.3V output with ±2% accuracy over the 6V–18V input range. This is explicitly confirmed in the Electrical Characteristics table for "MAX20075/76DATCB/V+, MAX20076EATCB/VY+" under VOUT,3.3V. The FB pin is internally connected to BIAS to enable this fixed setting.
Is the MAX20076EATCB/VY+ AEC-Q100 qualified?
Yes, the MAX20076EATCB/VY+ is AEC-Q100 qualified per Grade 1 (−40°C to +125°C ambient). This qualification is stated in the Benefits and Features section and reinforced by its inclusion in the "Automotive" application category and specification of 40V load-dump protection - both hallmarks of automotive-grade devices.
What is the quiescent current of the MAX20076EATCB/VY+ at no load?
The MAX20076EATCB/VY+ draws 3.5µA typical quiescent current at no load in standby mode, as specified in the Electrical Characteristics table under "Supply Current" for "MAX20075/76DATCB/V+, MAX20076EATCB/VY+, no load, no switching". This ultra-low IQ enables energy-efficient always-on functionality.
Which package does the MAX20076EATCB/VY+ use?
The MAX20076EATCB/VY+ uses a 12-pin side-wettable TDFN package (3mm × 3mm) with exposed thermal pad, identified by package code TD1233Y+2C and outline number 21-100176. This package supports automated optical inspection and superior thermal performance in high-power-density automotive layouts.
How does the MAX20076EATCB/VY+ handle input voltage dropout conditions?
The MAX20076EATCB/VY+ supports dropout operation up to 99% duty cycle. When input voltage drops near VOUT, the high-side FET is turned off every 20µs and low-side FET activated for ~200ns to recharge the BST capacitor - sustaining gate drive and maintaining regulation down to ~6V input for 3.3V output.
MAX20076EATCB/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
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 3.5V
- Voltage - Input (Max):
- 40V
- Voltage - Output (Min/Fixed):
- 1V
- Voltage - Output (Max):
- 10V
- Current - Output:
- 1.2A
- Frequency - Switching:
- 2.1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 12-TDFN-EP (3x3)
MAX20076EATCB/VY+ FAQ
1.How can I place an order for MAX20076EATCB/VY+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20076EATCB/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 MAX20076EATCB/VY+ reliable?
The price and inventory of MAX20076EATCB/VY+ 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+ is usually 5 days.
3.What payment methods are accepted for MAX20076EATCB/VY+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20076EATCB/VY+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20076EATCB/VY+?
MAX20076EATCB/VY+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20076EATCB/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 MAX20076EATCB/VY+?
For technical support, including MAX20076EATCB/VY+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20076EATCB/VY+ requirements.
6.How does Aetrix verify that MAX20076EATCB/VY+ is sourced from the original manufacturer or authorized distributors?
All MAX20076EATCB/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 MAX20076EATCB/VY+ meets industry standards.
7.What is the process for return or replacement of MAX20076EATCB/VY+?
All MAX20076EATCB/VY+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX20076EATCB/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 MAX20076EATCB/VY+ part is unused and in its original packaging.
Return procedure for MAX20076EATCB/VY+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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