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Analog Devices Inc./Maxim Integrated MAX20076ATCC/V+T
- Part No.:
- MAX20076ATCC/V+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 12-WFDFN Exposed Pad
- Datasheet:
-
MAX20076ATCC/V+T.pdf
- Description:
- IC REG BUCK PROG/1V 1.2A 12TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
MAX20076ATCC/V+T from Analog Devices is a 36V, 1.2A synchronous buck converter with integrated high-side and low-side MOSFETs, 20ns minimum on-time, fixed 2.1MHz switching frequency, ±2% output voltage accuracy (for fixed outputs), and AEC-Q100 qualification for automotive power rails. It supports externally adjustable 1V–3.6V output via resistor divider and operates across -40°C to +125°C.
For engineers reviewing the MAX20076ATCC/V+T datasheet, MAX20076ATCC/V+T pinout, MAX20076ATCC/V+T application, or MAX20076ATCC/V+T equivalent, key selection considerations include its 20ns min-on-time enabling direct 1V–3.6V regulation from automotive battery, 40V load-dump tolerance, PGOOD monitoring, spread-spectrum EMI reduction, and side-wettable TDFN-EP package for automated optical inspection.
Technical Context
This current-mode-controlled buck regulator uses internal slope compensation and requires no external loop compensation. Its 2.1MHz fixed-frequency FPWM operation eliminates subharmonic oscillation and ensures stable regulation even at ultra-low duty cycles enabled by the 20ns minimum on-time.
The device integrates high-side (300–550mΩ) and low-side (200–350mΩ) MOSFETs, features 99% dropout capability, and delivers precise output voltage via internal 1V reference (±1.5% FB accuracy) with programmable feedback. Thermal shutdown (175°C) and overcurrent protection (1.9A typ) are built-in.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.5V to 36V - supports wide automotive battery range including cold-crank (3.5V) and load-dump transients (40V) |
| Output Current | 1.2A continuous - sufficient for powering microcontrollers, sensors, and interface ICs in ADAS and body control modules |
| Switching Frequency | 2.1MHz (fixed) - enables use of small 4.7µH inductor and 22µF ceramic output capacitor, avoids AM band interference |
| Min On-Time | 20ns - allows direct 1V–3.6V output from 12V/24V rail without intermediate conversion stages |
| Output Voltage Range | 1V to 3.6V (externally adjustable) - configured via resistor divider on FB pin; not factory-trimmed |
| Accuracy (FB) | ±1.5% - ensures tight regulation stability across temperature and line/load variations for sensitive analog loads |
| Operating Temperature | -40°C to +125°C - qualified per AEC-Q100 Grade 1 for under-hood automotive applications |
| Package | 12-pin TDFN-EP (3mm × 3mm, side-wettable) - supports automated optical inspection and enhanced thermal dissipation via exposed pad |
Pinout & Package
MAX20076ATCC/V+T is housed in a 3mm × 3mm, 12-pin side-wettable TDFN package with exposed pad (EP), optimized for thermal performance and automated optical inspection in automotive PCB assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 SPS | Spread-spectrum enable input | Logic-high enables ±6% frequency modulation to reduce EMI peaks; internal 1MΩ pulldown ensures default disable |
| 2 EN | High-voltage enable input | Accepts 3.3V–36V logic; no internal pullup/pulldown minimizes quiescent current; enables system-level power sequencing |
| 3 BST | Bootstrap supply for high-side gate driver | Requires 0.1µF ceramic capacitor to LX; critical for maintaining HS FET gate drive during 99% duty-cycle dropout operation |
| 4 SUP | Main input supply input | Connect 4.7µF ceramic capacitor to PGND; handles up to 40V transient with internal protection |
| 5 LX | Switch node | Drives external 4.7µH inductor; contains internal clamp diodes to PGND/AGND/SUP - must avoid forward-biasing beyond power limits |
| 6 PGND | Power ground return | Low-impedance path for high-current/high-frequency switching currents; must be connected to EP and output capacitor ground |
| 7 AGND | Analog ground reference | Return for quiet signals (FB, SYNC, BIAS); joined to PGND only at single point - typically output capacitor cathode |
| 8 FB | Feedback input | Connects to resistor divider for 1V–3.6V output setting; 0.02µA bias current enables high-resistor values (≤500kΩ) |
| 9 OUT | Regulated output sense | Bypassed with 22µF ceramic capacitor to PGND; serves as output voltage sensing point and inductor connection |
| 10 BIAS | Internal 5V bias supply | Provides regulated 5V for internal circuitry; requires ≥1µF ceramic capacitor to AGND; used as pullup for PGOOD |
| 11 SYNC | Oscillator synchronization input | Connect to BIAS to enable internal 2.1MHz clock; internal 1MΩ pulldown disables sync by default |
| 12 PGOOD | Open-drain power-good indicator | Active-high signal asserting when VOUT ≥93.5% nominal; requires external 20kΩ pullup to BIAS or system rail |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous buck with integrated FETs | Eliminates external MOSFETs and drivers - reduces BOM count, layout area, and design risk for space-constrained automotive modules |
| 20ns minimum on-time | Enables direct 1V–3.6V output from 12V/24V battery without pre-regulator - cuts cost and improves efficiency vs. two-stage solutions |
| Fixed 2.1MHz FPWM operation | Guarantees constant switching frequency across all loads - simplifies EMI filtering and avoids audible noise in vehicle cabins |
| PGOOD with 93.5% threshold | Provides reliable power-rail monitoring for MCU reset sequencing and fault detection in safety-critical systems |
| AEC-Q100 Grade 1 qualification | Validated for -40°C to +125°C ambient operation with 40V load-dump immunity - meets automotive functional safety requirements |
| Side-wettable TDFN package | Enables automated optical inspection of solder joints - improves manufacturing yield and field reliability in high-volume automotive production |
Applications
| ADAS Camera Power Supply | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: Powers image sensor, ISP, and serial interface in rear-view or surround-view camera modules operating directly from 12V battery. IC Role / Device Role / Timing Role: Primary 3.3V or configurable 1.8V/2.8V buck regulator delivering clean, low-noise power with fast transient response. Use Value: 20ns min-on-time enables direct low-voltage rail generation; PGOOD ensures safe boot sequence; 40V load-dump rating protects against alternator transients. |
Use Scenario: Supplies 3.3V or 5V to microcontroller, CAN transceiver, and LED drivers in door module or lighting control unit. IC Role / Device Role / Timing Role: Main DC-DC converter providing isolated, sequenced power with EN-controlled startup and thermal protection. Use Value: AEC-Q100 qualification ensures reliability in under-hood environments; side-wettable package supports AOI-based quality assurance; 99% dropout maintains operation during cranking. |
| Infotainment System PMIC Sub-Block | Automotive Telematics Unit (TCU) |
Use Scenario: Generates auxiliary 1.2V or 1.8V rail for DSP or audio codec within infotainment head unit powered from 12V main rail. IC Role / Device Role / Timing Role: Secondary buck converter supporting dynamic voltage scaling and low-quiescent operation during sleep modes. Use Value: 2.1MHz switching allows compact 4.7µH inductor and 22µF output cap; spread-spectrum (SPS pin) lowers radiated emissions near RF-sensitive receivers. |
Use Scenario: Provides stable 3.3V supply to cellular modem, GNSS receiver, and secure element in embedded telematics gateway. IC Role / Device Role / Timing Role: High-reliability power stage with PGOOD monitoring and thermal shutdown for always-connected connectivity subsystems. Use Value: -40°C to +125°C operation ensures functionality in extreme cabin temperatures; 3.5V–36V input accommodates stop-start and battery recovery conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX20076ATCB/V+ | Factory-trimmed 3.3V fixed output; same 1.2A rating, package, and specs except FB pin tied internally to BIAS | Eliminates external resistor divider; suitable where 3.3V is required without adjustment | Select when fixed 3.3V simplifies design and reduces component count - no reconfiguration needed |
| LM61480QRTWRQ1 | 3.5V–36V input, 1.2A, 2.1MHz, but uses external compensation and lacks side-wettable package or 20ns min-on-time | Requires additional loop compensation components; less suited for ultra-low-VOUT or AOI-dependent production | Choose if design flexibility (e.g., custom compensation) outweighs board space and manufacturability benefits of MAX20076ATCC/V+T |
Compared with MAX20076ATCB/V+, the MAX20076ATCC/V+T offers programmable 1V–3.6V output at the cost of one resistor divider, while LM61480QRTWRQ1 trades integrated simplicity for external tuning - making MAX20076ATCC/V+T optimal for compact, AOI-compatible automotive rails requiring flexible low-voltage outputs.
Availability
MAX20076ATCC/V+T is available at Aetrix Electronics and suitable for automotive ADAS camera power supplies, body control modules, infotainment subsystems, and telematics units requiring stable component supply across extended temperature and high-reliability automotive programs.
Supply support for MAX20076ATCC/V+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 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 signal chain solutions.
The MAX20076ATCC/V+T belongs to Analog Devices' automotive-grade power management portfolio, designed specifically for robust, space-efficient DC-DC conversion in safety-critical vehicle subsystems operating under harsh electrical and thermal conditions.
FAQ
What output voltage range does the MAX20076ATCC/V+T support?
The MAX20076ATCC/V+T supports an externally adjustable output voltage range of 1V to 3.6V using a resistor divider connected between OUT and FB pins. Unlike fixed-output variants (e.g., ATCA/V+ for 5V), this version has no internal voltage reference tied to BIAS - enabling precise low-voltage rails for modern SoCs and sensors without requiring additional regulators.
Does the MAX20076ATCC/V+T support forced PWM (FPWM) mode only?
Yes, the MAX20076ATCC/V+T is specified for Forced-PWM operation only. SYNC must be connected to BIAS to enable the internal 2.1MHz oscillator. Skip-mode or DCM operation is not supported - ensuring constant frequency for predictable EMI behavior and eliminating low-frequency ripple in noise-sensitive applications like camera imaging or RF subsystems.
How is thermal performance managed in the MAX20076ATCC/V+T?
The MAX20076ATCC/V+T incorporates thermal shutdown at 175°C (typ) with 15°C hysteresis and relies on its side-wettable 3mm × 3mm TDFN-EP package for heat dissipation. The exposed pad must be soldered to a large PGND copper plane with multiple vias. With θJA = 41°C/W on a 4-layer board, it sustains 1.2A output continuously at +85°C ambient when properly laid out.
What is the purpose of the SPS pin on the MAX20076ATCC/V+T?
The SPS (Spread-Spectrum) pin on the MAX20076ATCC/V+T enables optional ±6% frequency modulation of the 2.1MHz internal oscillator when pulled high. This reduces peak radiated EMI emissions without affecting regulation performance. SPS is inactive when SYNC is driven externally, and the pin features a 1MΩ internal pulldown to disable spread spectrum by default.
Can the MAX20076ATCC/V+T operate during automotive cold-crank conditions?
Yes, the MAX20076ATCC/V+T operates down to 3.5V input, covering automotive cold-crank scenarios where battery voltage dips to ~3.8V. Its 99% maximum duty cycle and 20ns minimum on-time maintain regulation of 1V–3.6V outputs even at ultra-low VIN. Undervoltage lockout (UVLO) releases at 2.73V (typ), ensuring controlled startup after deep discharge recovery.
MAX20076ATCC/V+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:
- Programmable (Fixed)
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 3.5V
- Voltage - Input (Max):
- 36V
- Voltage - Output (Min/Fixed):
- 1V
- Voltage - Output (Max):
- 10V
- Current - Output:
- 1.2A
- Frequency - Switching:
- -
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 12-TDFN (3x3)
MAX20076ATCC/V+T FAQ
1.How can I place an order for MAX20076ATCC/V+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20076ATCC/V+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 MAX20076ATCC/V+T reliable?
The price and inventory of MAX20076ATCC/V+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX20076ATCC/V+T is usually 5 days.
3.What payment methods are accepted for MAX20076ATCC/V+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20076ATCC/V+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20076ATCC/V+T?
MAX20076ATCC/V+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20076ATCC/V+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 MAX20076ATCC/V+T?
For technical support, including MAX20076ATCC/V+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20076ATCC/V+T requirements.
6.How does Aetrix verify that MAX20076ATCC/V+T is sourced from the original manufacturer or authorized distributors?
All MAX20076ATCC/V+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 MAX20076ATCC/V+T meets industry standards.
7.What is the process for return or replacement of MAX20076ATCC/V+T?
All MAX20076ATCC/V+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX20076ATCC/V+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 MAX20076ATCC/V+T part is unused and in its original packaging.
Return procedure for MAX20076ATCC/V+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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