My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX20412ATJC/V+
- Part No.:
- MAX20412ATJC/V+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- -
- Datasheet:
-
MAX20412ATJC/V+.pdf
- Description:
- IC REG BUCK DL CH FOR SOC CORES
- Quantity:
- Payment:
- Shipping:
Inventory:3,091
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX20412ATJC/V+ from Maxim Integrated is a dual-output, AEC-Q100 qualified synchronous step-down controller IC for automotive point-of-load regulation. It operates from 3.0V to 5.5V input, delivers up to 60A (OUT1 in dual-phase) and 30A (OUT2), and achieves ±2% output voltage accuracy across load, line, and temperature. Used in ADAS domain controllers and infotainment SoC power rails.
For engineers reviewing the MAX20412ATJC/V+ datasheet, MAX20412ATJC/V+ pinout, MAX20412ATJC/V+ application, or MAX20412ATJC/V+ equivalent, key selection criteria include dual-channel independent I²C control, 2.2MHz fixed-frequency PWM mode with spread-spectrum EMI reduction, differential remote sensing per channel, and AEC-Q100 Grade 0 qualification for under-hood deployment.
Technical Context
The MAX20412ATJC/V+ implements current-mode control with programmable compensation per channel, supporting both forced-PWM and skip-mode operation. Its architecture enables phase interleaving (180° OUT2 shift vs. OUT1) and optional second-phase expansion via PWM1X output driving an external MAX15492B controller.
Each channel features independent enable inputs (EN1/EN2), open-drain PGOOD outputs (PG1/PG2), and dedicated current-sense inputs (CS1±/CS2±) with selectable DCR gain (16× or 32×). The I²C interface supports dynamic voltage scaling (DVS) at programmable slew rates and factory-preset VID configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.0V to 5.5V - compatible with automotive 5V rail and post-LDO supplies |
| Output Voltage Range | 0.25V to 1.275V in 6.25mV steps - supports modern low-voltage SoCs and FPGAs |
| Max Output Current | 60A (OUT1 dual-phase), 30A (OUT2 single-phase) - scalable PoL for high-performance processors |
| Switching Frequency | 2.2MHz (or 1.1MHz) - enables all-ceramic output filter design and compact layout |
| Output Accuracy | ±2% over load/line/temp - meets tight regulation requirements of core logic supplies |
| Thermal Rating | -40°C to +125°C ambient, AEC-Q100 Grade 0 - validated for engine bay and transmission control units |
| I²C Interface Speed | Up to 3.4MHz - supports fast DVS transitions during CPU frequency scaling |
Pinout & Package
MAX20412ATJC/V+ uses a 32-pin, 5mm × 5mm TQFN package with exposed thermal pad (EP = GND). The package supports high-power dissipation (θJA = 36°C/W) and requires proper PGND1/PGND2/GND partitioning per layout guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pin 1) | Analog ground reference | Separate from PGND1/PGND2; connects to quiet analog ground plane |
| EN1 / EN2 (Pins 21 / 5) | Active-high enable inputs | Independent channel control; pull low to disable respective DC-DC stage |
| PG1 / PG2 (Pins 26 / 10) | Open-drain power-good outputs | 120µs delay after regulation; require external pull-up for logic-level signaling |
| RS1+/RS1- / RS2+/RS2- (Pins 23,22 / 7,6) | Differential remote sense inputs | Compensates for PCB IR drop; enables accurate regulation at point-of-load |
| CS1+/CS1- / CS2+/CS2- (Pins 25,24 / 9,8) | Current-sense differential inputs | Supports DCR-based sensing with 16× or 32× gain; enables cycle-by-cycle current limiting |
| PWM1X (Pin 18) | Second-phase PWM output | Drives external MAX15492B for 60A OUT1; disabled when shorted to PV |
| SYNC (Pin 17) | Frequency synchronization I/O | Configurable as input (for system clock sync) or output (to daisy-chain other controllers) |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent I²C interfaces | Each channel has unique slave address (e.g., 0x70/0x71 for OUT1, 0x72/0x73 for OUT2), enabling concurrent DVS and telemetry |
| Programmable spread-spectrum modulation | Reduces peak radiated emissions by ±3% frequency dithering - simplifies EMI compliance testing |
| Configurable light-load efficiency mode | Skip-mode operation reduces quiescent current to 570µA (EN1 active, EN2 inactive) - extends battery runtime in sleep states |
| Robust fault protection suite | Includes overtemperature shutdown (165°C), short-circuit detection, and individual channel overcurrent limiting with four VSKIP thresholds |
| Automotive-grade reliability | AEC-Q100 Grade 0 qualified, -40°C to +125°C operation, and 32-pin TQFN with exposed pad for thermal management |
Applications
| ADAS Domain Controller Power | Infotainment SoC Core Rail |
|---|---|
Use Scenario: Powers vision processor SoC (e.g., NVIDIA Orin) requiring dual independent 0.8V/1.0V rails with fast transient response. IC Role / Device Role / Timing Role: Dual-channel buck controller delivering 60A (VDD_CPU) and 30A (VDD_GPU) with phase interleaving and I²C DVS coordination. Use Value: ±2% regulation accuracy and 2.2MHz switching maintain stable core voltage during burst workloads without external LDO post-regulation. |
Use Scenario: Supplies application processor in head-unit systems with dynamic DVFS based on UI workload and thermal conditions. IC Role / Device Role / Timing Role: I²C-programmable step-down controller adjusting output from 0.75V to 1.1V in 6.25mV steps during CPU frequency scaling. Use Value: Programmable slew rate prevents overshoot/undershoot during DVS transitions, eliminating need for additional decoupling capacitance. |
| Automotive Gateway ECU | Electric Power Steering (EPS) MCU Supply |
Use Scenario: Generates isolated 1.0V and 1.2V rails for multi-core communication gateway MCU handling CAN FD, Ethernet, and LIN traffic. IC Role / Device Role / Timing Role: Dual-output controller with independent EN/PG signals enabling staggered power-up sequencing and fault isolation. Use Value: Differential remote sensing compensates for voltage drop across long PCB traces between controller and MCU VDD pins. |
Use Scenario: Provides safety-critical 1.2V core supply for ASIL-B compliant EPS microcontroller with strict startup timing and fault reporting. IC Role / Device Role / Timing Role: AEC-Q100 Grade 0 controller with PGOOD assertion within 120µs and thermal shutdown at 165°C. Use Value: Independent channel enable/disable allows safe power cycling of MCU cores during functional safety diagnostics without affecting auxiliary rails. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel automotive buck controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPQ8633BGLE-Z | Single-chip dual-output converter (integrated MOSFETs); max 30A total; no I²C DVS; 500kHz–2.2MHz adjustable frequency | Lacks independent channel control and remote sensing; suited for cost-sensitive non-SoC applications | Select when board space is constrained and integrated FETs are acceptable; not suitable for 60A or DVS-critical designs |
| TPS546D24RQFT | Single-channel 60A PMBus controller; supports AVSBus; 400kHz–1.5MHz; no spread-spectrum; -40°C to +125°C | Requires two devices for dual-rail; lacks AEC-Q100 qualification and automotive-specific protections | Choose for datacenter-style PMBus ecosystems where AVSBus telemetry is required; not automotive-qualified |
Compared with MPQ8633BGLE-Z and TPS546D24RQFT, the MAX20412ATJC/V+ uniquely combines AEC-Q100 Grade 0 qualification, dual independent I²C interfaces, 60A expandable output, and spread-spectrum EMI reduction - making it the only option for high-reliability automotive SoC power with dynamic voltage scaling.
Availability
MAX20412ATJC/V+ is available at Aetrix Electronics and suitable for automotive ADAS domain controllers, infotainment SoC power rails, and electric power steering ECUs requiring stable component supply with full AEC-Q100 traceability and long-term lifecycle support.
Supply support for MAX20412ATJC/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
Maxim Integrated (now part of Analog Devices) designs precision analog, mixed-signal, and power management ICs for automotive, industrial, and communications markets.
The MAX20412 product line delivers high-current, low-voltage DC-DC control for automotive SoCs and MCUs, emphasizing AEC-Q100 compliance, EMI robustness, and digital configurability in harsh environments.
FAQ
What is the maximum supported output current for each channel of the MAX20412ATJC/V+?
The MAX20412ATJC/V+ supports up to 60A on OUT1 when configured in dual-phase mode using the PWM1X output to drive an external MAX15492B controller, and up to 30A on OUT2 in single-phase mode. Each channel's current capability is limited by external MOSFET selection, PCB layout, and thermal management - the IC itself provides gate drive signals and current sensing but does not integrate power FETs.
Does the MAX20412ATJC/V+ support differential remote voltage sensing?
Yes, the MAX20412ATJC/V+ supports differential remote voltage sensing on both channels via dedicated RS1+/RS1- and RS2+/RS2- pins. This feature compensates for IR drop across PCB traces between the controller and load, ensuring ±2% output accuracy at the point-of-load - critical for low-voltage SoC core rails.
How is the switching frequency configured on the MAX20412ATJC/V+?
The MAX20412ATJC/V+ supports two fixed-frequency modes: 2.2MHz (CONFIG.FSW = 0) and 1.1MHz (CONFIG.FSW = 1), selected via internal configuration bits. Frequency can also be synchronized externally via the SYNC pin, or set to skip-mode by leaving SYNC unconnected or grounded - enabling optimal efficiency trade-offs across load conditions.
Is the MAX20412ATJC/V+ qualified for automotive use?
Yes, the MAX20412ATJC/V+ is AEC-Q100 qualified (Grade 0: -40°C to +125°C ambient), with built-in protections including overtemperature shutdown (165°C), short-circuit detection, and robust ESD tolerance. Its 32-pin TQFN package with exposed pad meets automotive thermal and vibration requirements for under-hood and cabin applications.
Can the MAX20412ATJC/V+ adjust output voltage dynamically during operation?
Yes, the MAX20412ATJC/V+ supports real-time dynamic voltage scaling (DVS) via its I²C interface, allowing output voltage adjustment from 0.25V to 1.275V in 6.25mV steps. Slew rate is programmable per channel, preventing overshoot/undershoot during transitions - essential for CPU DVFS in automotive SoCs.
MAX20412ATJC/V+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- -
- Packaging:
- Strip
- Product Status:
- Active
- Function:
- -
- Output Configuration:
- -
- Topology:
- -
- Output Type:
- -
- Number of Outputs:
- -
- Voltage - Input (Min):
- -
- Voltage - Input (Max):
- -
- Voltage - Output (Min/Fixed):
- -
- Voltage - Output (Max):
- -
- Current - Output:
- -
- Frequency - Switching:
- -
- Synchronous Rectifier:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
MAX20412ATJC/V+ FAQ
1.How can I place an order for MAX20412ATJC/V+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20412ATJC/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 MAX20412ATJC/V+ reliable?
The price and inventory of MAX20412ATJC/V+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX20412ATJC/V+ is usually 5 days.
3.What payment methods are accepted for MAX20412ATJC/V+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20412ATJC/V+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20412ATJC/V+?
MAX20412ATJC/V+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20412ATJC/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 MAX20412ATJC/V+?
For technical support, including MAX20412ATJC/V+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20412ATJC/V+ requirements.
6.How does Aetrix verify that MAX20412ATJC/V+ is sourced from the original manufacturer or authorized distributors?
All MAX20412ATJC/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 MAX20412ATJC/V+ meets industry standards.
7.What is the process for return or replacement of MAX20412ATJC/V+?
All MAX20412ATJC/V+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX20412ATJC/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 MAX20412ATJC/V+ part is unused and in its original packaging.
Return procedure for MAX20412ATJC/V+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX20412ATJC/V+ Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
