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Analog Devices Inc./Maxim Integrated MAX20015ATBA/V+
- Part No.:
- MAX20015ATBA/V+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 10-DFN
- Datasheet:
-
MAX20015ATBA/V+.pdf
- Description:
- IC REG BUCK ADJ 3A 10TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,300
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Product details
Overview
MAX20015ATBA/V+ from Analog Devices is an ASIL B-compliant, 2.2MHz synchronous step-down DC-DC converter delivering up to 3A output current with ±1.5% output voltage accuracy over load, line, and temperature, operating from 2.7V–5.5V input for automotive safety-critical point-of-load regulation.
For engineers reviewing the MAX20015ATBA/V+ datasheet, MAX20015ATBA/V+ pinout, MAX20015ATBA/V+ application, or MAX20015ATBA/V+ equivalent, key selection considerations include its fixed 2.2MHz switching frequency, factory-preset or resistor-adjustable VOUT, integrated RESET output with shorted-pin detection, spread-spectrum enable capability, and TDFN-10 (3mm × 3mm) package with exposed thermal pad.
Technical Context
The MAX20015ATBA/V+ implements a current-mode PWM controller with forced-PWM and skip-mode operation, enabling stable regulation under light and heavy loads while maintaining low output ripple. Its 2.2MHz switching frequency supports all-ceramic output filtering and minimizes inductor size without compromising transient response.
ASIL B compliance is achieved through redundant internal reference, shorted-pin detection on the RESET output, and built-in diagnostics including overtemperature shutdown, cycle-by-cycle overcurrent limiting, and programmable OV/UV thresholds with ±1.5% accuracy - all validated across –40°C to +125°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | Up to 3A continuous; enables single-chip PoL supply for ADAS sensors or microcontrollers without external current boosting. |
| Input Voltage Range | 2.7V to 5.5V; compatible with automotive battery rails (cold-crank down to 2.7V) and post-LDO 3.3V/5V domains. |
| Switching Frequency | Fixed 2.2MHz; allows use of ≤1µH inductors and 10µF–22µF ceramic output capacitors, reducing board area by >40% vs. 500kHz solutions. |
| Output Voltage Accuracy | ±1.5% over full load, line, and temperature; eliminates need for precision 0.1% feedback resistors in factory-preset configurations. |
| Operating Temperature | –40°C to +125°C ambient; qualified for under-hood automotive modules per AEC-Q100 Grade 0 requirements. |
| Protection Features | Thermal shutdown, cycle-by-cycle overcurrent limit, short-circuit protection, and RESET output with shorted-pin detection - no external fault monitoring required. |
Pinout & Package
MAX20015ATBA/V+ is housed in a 3mm × 3mm × 0.85mm, 10-pin TDFN package with exposed thermal pad (pin 10), optimized for high-power density and thermal performance in space-constrained automotive modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Input power supply connection | Accepts 2.7V–5.5V; requires local 10µF ceramic decoupling adjacent to pin for EMI suppression and stability. |
| SW | Switch node | Connects to external inductor; high dv/dt node requiring tight layout and minimal trace length to reduce switching losses and radiated noise. |
| FB | Feedback input | Monitors output via resistor divider; internal 0.5V reference enables precise VOUT setting (e.g., 1.2V = 2.4:1 divider) or factory preset. |
| EN | Enable control | Active-high logic input; pulls low to disable converter and reduce quiescent current to <1µA - critical for always-on automotive systems. |
| SS | Soft-start timing | Connects to capacitor to set ramp time; factory-programmable option available to eliminate external component. |
| RESET | Power-good indicator | Open-drain output asserting low during undervoltage or startup; includes shorted-pin detection to flag PCB-level faults. |
| SSEN | Spread-spectrum enable | Activates frequency dithering to reduce peak EMI emissions - essential for CISPR 25 Class 5 compliance in infotainment ECUs. |
| GND | Power and signal ground | Must be connected to exposed thermal pad (pin 10); shared ground plane required for thermal dissipation and noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| ASIL B Compliance | Validated diagnostic coverage includes redundant reference, shorted-pin detection on RESET, and fault reporting - meets ISO 26262 requirements for safety-related subsystems. |
| 2.2MHz Fixed-Frequency PWM | Enables compact magnetics and ceramic-only output filter design, reducing solution size by ≥35% versus 500kHz alternatives without sacrificing transient response. |
| Factory-Preset Output Voltage | Eliminates external feedback resistors and associated placement/tolerance errors; delivers ±1.5% accuracy out-of-box for common rails (e.g., 1.2V, 1.8V, 3.3V). |
| Integrated RESET with Diagnostics | Provides power-good signaling plus shorted-pin detection - detects solder bridges or PCB shorts during manufacturing test and field operation. |
| Forced-PWM + Skip Mode | Maintains constant frequency under load for predictable EMI, while skipping pulses at light load to achieve >90% efficiency at 1mA output current. |
Applications
| Radar Sensor Power Supply | ADAS Camera Module Core Rail |
|---|---|
Use Scenario: Powers 77GHz radar transceiver SoCs requiring clean, low-noise 1.2V/1.8V supplies in compact front-bumper modules. IC Role / Device Role / Timing Role: Primary point-of-load regulator delivering regulated core voltage with fast load-transient response to handle burst-mode RF transmission. Use Value: 2.2MHz operation minimizes inductor size and avoids AM-band interference; ±1.5% accuracy ensures ADC/DAC reference stability across temperature. | Use Scenario: Supplies image signal processor (ISP) and MIPI interface in automotive surround-view cameras mounted in side mirrors or bumpers. IC Role / Device Role / Timing Role: High-efficiency buck converter providing 3.3V I/O rail and 1.2V core rail with independent RESET assertion for safe boot sequencing. Use Value: Factory-preset outputs eliminate resistor networks; spread-spectrum enable reduces EMI coupling into analog video paths and MIPI lanes. |
| Automotive Infotainment Processor Core | Body Control Module (BCM) Microcontroller Supply |
Use Scenario: Regulates core voltage for quad-core ARM Cortex-A53 processors in head-unit systems with strict thermal and EMI constraints. IC Role / Device Role / Timing Role: Synchronous buck converter with forced-PWM mode ensuring deterministic switching noise for audio codec isolation. Use Value: 3A capability supports dynamic CPU load steps; RESET output coordinates safe reset of companion PMICs and memory controllers. | Use Scenario: Powers 32-bit automotive MCU (e.g., S32K144) in door modules or lighting controllers where space and reliability are critical. IC Role / Device Role / Timing Role: Primary DC-DC regulator with ASIL B diagnostics feeding MCU VDD and CAN transceiver rails. Use Value: Overtemperature and overcurrent protection prevent latch-up during load dump; shorted-pin detection on RESET flags assembly defects pre-deployment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down DC-DC converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62933RQYR (TI) | 3A, 2.25MHz, ±1% accuracy, no ASIL B certification; lacks RESET shorted-pin detection and spread-spectrum enable. | Targeted at non-safety infotainment or telematics; not qualified for ASIL B sensor or actuator power rails. | Select when highest output accuracy is prioritized over functional safety diagnostics and EMI reduction features. |
| MPQ4433AGRE-A (Monolithic Power) | 3A, 2.2MHz, AEC-Q100 Grade 1 (–40°C to +125°C), no ASIL B compliance; no integrated RESET or spread-spectrum capability. | Suitable for body electronics or HVAC control where safety integrity level is not mandated. | Choose for cost-sensitive, non-ASIL applications needing similar efficiency and footprint but without diagnostic overhead. |
Compared with TPS62933RQYR and MPQ4433AGRE-A, the MAX20015ATBA/V+ uniquely integrates ASIL B diagnostics (redundant reference, RESET shorted-pin detection), spread-spectrum EMI reduction, and factory-preset accuracy - making it the only option qualified for safety-critical ADAS power rails without adding external monitoring circuitry.
Availability
MAX20015ATBA/V+ is available at Aetrix Electronics and suitable for automotive radar systems, ADAS camera modules, and infotainment processor core supplies requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.
Supply support for MAX20015ATBA/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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving automotive, industrial, communications, and healthcare markets.
The MAX20015–MAX20018 family targets ASIL B-compliant power conversion in automotive safety systems, delivering high-efficiency, small-footprint DC-DC regulation with integrated diagnostics for radar, camera, and domain controller applications.
FAQ
What is the switching frequency of the MAX20015ATBA/V+ and why is it significant?
The MAX20015ATBA/V+ operates at a fixed 2.2MHz switching frequency. This high frequency enables the use of small-value inductors (≤1µH) and all-ceramic output capacitors, significantly reducing solution size and weight. It also moves switching noise above the AM radio band (0.53–1.71MHz), easing EMI filtering requirements in automotive environments where the MAX20015ATBA/V+ is commonly deployed.
Does the MAX20015ATBA/V+ support factory-preset output voltages?
Yes, the MAX20015ATBA/V+ supports factory-preset output voltages with ±1.5% accuracy across load, line, and temperature - eliminating the need for external 0.1% feedback resistors. This feature simplifies BOM, improves manufacturing yield, and enhances long-term stability. The MAX20015ATBA/V+ can also be configured with external resistors using its 0.5V internal reference for custom output values.
What safety certifications does the MAX20015ATBA/V+ hold?
The MAX20015ATBA/V+ is ASIL B-compliant per ISO 26262, with diagnostics including redundant internal reference, shorted-pin detection on the RESET output, and programmable overvoltage/undervoltage thresholds. It is also AEC-Q100 Grade 0 qualified (–40°C to +125°C ambient), making it suitable for under-hood and safety-critical automotive applications where the MAX20015ATBA/V+ serves as primary power for radar or camera SoCs.
How does the RESET output of the MAX20015ATBA/V+ differ from standard power-good signals?
The RESET output of the MAX20015ATBA/V+ is an open-drain signal with integrated shorted-pin detection - a diagnostic feature that identifies PCB-level solder shorts or connector faults during startup or runtime. Unlike basic power-good outputs, this function enables early fault detection in automated test and field operation, enhancing system reliability in automotive deployments where the MAX20015ATBA/V+ powers safety-critical subsystems.
Can the MAX20015ATBA/V+ be synchronized to an external clock?
No, the MAX20015ATBA/V+ does not support external clock synchronization. It operates in fixed-frequency PWM mode at 2.2MHz and includes a spread-spectrum enable (SSEN) input to reduce peak EMI emissions. While it cannot be synchronized to an external source, its high-frequency operation and spread-spectrum capability provide robust EMI control - a key requirement for automotive applications where the MAX20015ATBA/V+ is used in radar and camera power supplies.
MAX20015ATBA/V+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 10-DFN
- Packaging:
- Tray
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.7V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.5V
- Voltage - Output (Max):
- 3.8V
- Current - Output:
- 3A
- Frequency - Switching:
- 2.2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-TDFN (3x3)
MAX20015ATBA/V+ FAQ
1.How can I place an order for MAX20015ATBA/V+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20015ATBA/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 MAX20015ATBA/V+ reliable?
The price and inventory of MAX20015ATBA/V+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX20015ATBA/V+ is usually 5 days.
3.What payment methods are accepted for MAX20015ATBA/V+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20015ATBA/V+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20015ATBA/V+?
MAX20015ATBA/V+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20015ATBA/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 MAX20015ATBA/V+?
For technical support, including MAX20015ATBA/V+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20015ATBA/V+ requirements.
6.How does Aetrix verify that MAX20015ATBA/V+ is sourced from the original manufacturer or authorized distributors?
All MAX20015ATBA/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 MAX20015ATBA/V+ meets industry standards.
7.What is the process for return or replacement of MAX20015ATBA/V+?
All MAX20015ATBA/V+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX20015ATBA/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 MAX20015ATBA/V+ part is unused and in its original packaging.
Return procedure for MAX20015ATBA/V+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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