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Analog Devices Inc./Maxim Integrated MAX20010CATPX/V+
- Part No.:
- MAX20010CATPX/V+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 20-WFQFN Exposed Pad
- Datasheet:
-
MAX20010CATPX/V+.pdf
- Description:
- IC REG BUCK PROG 6A 20TQFN
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MAX20010CATPX/V+ from Analog Devices is a high-efficiency, synchronous 6A step-down DC-DC converter for automotive point-of-load regulation, operating from 3.0V to 5.5V input and delivering 0.5V–1.5875V output with ±2% accuracy over load, line, and temperature. It integrates low RDS(ON) pMOS (31mΩ typ) and nMOS (18mΩ typ) switches, supports I²C-based dynamic voltage scaling (DVS), and features 2.2MHz fixed-frequency PWM operation with spread-spectrum modulation.
For engineers reviewing the MAX20010CATPX/V+ datasheet, MAX20010CATPX/V+ pinout, MAX20010CATPX/V+ application, or MAX20010CATPX/V+ equivalent, key selection considerations include its AEC-Q100 qualification, differential remote sensing capability, programmable soft-start slew rate (5.5–44 mV/μs), PGOOD output with 256-clock timeout, and factory-preset output voltage with I²C override.
Technical Context
The MAX20010CATPX/V+ implements current-mode control with integrated peak-current sensing and a 7-bit DAC for precise VID-based output voltage setting. Its dual-mode operation-forced-PWM (FPWM) and skip-mode-enables stable light-load efficiency while maintaining fast transient response via 36ns minimum on-time and 7.76A–11.64A programmable current-limit threshold.
Internal block architecture includes dedicated error amplifier (EAMP), power-good comparator (PGOOD COMP), spread-spectrum oscillator (SS OSC), and configurable SYNC I/O supporting system-level clock synchronization or external frequency forcing between 1.8MHz and 2.6MHz. The device uses differential remote sense (RS+/RS−) to reject PCB IR drop and maintain ±2% regulation at the load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.0V to 5.5V - Supports direct connection to automotive 5V rail or post-LDO supply without external pre-regulation. |
| Output Current | Up to 6A continuous - Enables single-chip power delivery for high-performance ADAS SoCs and microcontrollers. |
| Output Voltage Accuracy | ±2% over full load/line/temp - Ensures reliable core voltage regulation for sensitive processors across -40°C to +125°C. |
| Switching Frequency | 2.2MHz (typ), 2.0–2.4MHz range - Allows use of compact all-ceramic output capacitors and minimizes solution footprint. |
| I²C Interface | Up to 3.4MHz clock, 7-bit slave address with ADDR pin select - Enables real-time DVS and telemetry in safety-critical automotive systems. |
| Thermal Protection | 165°C thermal shutdown with 15°C hysteresis - Prevents permanent damage during sustained overload or poor heatsinking. |
| Package Thermal Resistance | θJA = 33°C/W (4-layer board) - Supports high-power operation with standard PCB layout and exposed pad grounding. |
Pinout & Package
MAX20010CATPX/V+ is housed in a 20-pin TQFN-EP package (4mm × 4mm, 0.5mm pitch) with an exposed thermal pad (EP) that must be soldered to a solid ground plane for optimal thermal performance and EMI reduction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| LX (Pins 1–4) | Switch node connection | Drives external inductor; all four pins must be shorted together to minimize parasitic inductance and switching losses. |
| PGND (Pins 5–7) | Power ground return | Low-impedance path for high di/dt currents; separate from analog ground (GND) to prevent noise coupling into control circuitry. |
| SDA / SCL | I²C bidirectional data / clock | Supports up to 3.4MHz operation; requires ≥500Ω pull-up resistors; immune to bus noise via built-in spike suppression. |
| RS+ / RS− | Differential remote sense inputs | Compensates for PCB trace resistance by measuring voltage directly at the load, improving regulation accuracy under dynamic load. |
| PG | Open-drain power-good indicator | Asserts low for 256 internal clocks after VOUT enters regulation window; requires external pull-up for logic-level interfacing. |
| SYNC | Configurable sync I/O | Factory-set as input or output; when input, enables FPWM mode with external clock (1.8–2.6MHz); when output, provides internal 2.2MHz clock. |
| EN | Active-high enable | Triggers soft-start on rising edge; initiates controlled 5.5mV/μs shutdown ramp when pulled low for ≥1ms. |
| AV / PV / GND | Analog supply / power supply / analog ground | AV filtered via 100Ω + 1μF to GND; PV decoupled with ≥4.7μF ceramic to PGND; GND isolated from PGND to reduce noise injection. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade-1 qualification | Validated for automotive operation from -40°C to +125°C ambient, meeting stringent reliability and stress-test requirements. |
| Programmable DVS slew rate | Configurable from 5.5 to 44 mV/μs via SLEW register - Enables optimized trade-off between transient response and inrush current during voltage transitions. |
| Spread-spectrum modulation | +3% frequency dither around 2.2MHz - Reduces peak radiated emissions by spreading energy across a narrow band, easing EMC compliance. |
| Differential remote sensing | RS+/RS− inputs reject up to 100mV of IR drop - Maintains ±2% output accuracy even with long PCB traces between IC and load. |
| Integrated current-limit protection | 7.76A–11.64A threshold with auto-retry - Detects short-circuit conditions and initiates 4ms shutdown + soft-start cycle until fault clears. |
Applications
| ADAS Domain Controller Power | Automotive Infotainment SoC Core Rail |
|---|---|
|
Use Scenario: Supplies core voltage to NVIDIA DRIVE Orin or Qualcomm SA8155P SoCs in camera radar fusion units. IC Role / Device Role / Timing Role: Primary 6A buck regulator with I²C-controlled DVS for dynamic performance scaling and thermal management. Use Value: ±2% accuracy and differential sensing ensure stable operation under rapid load transients from AI accelerators, while 2.2MHz switching enables compact 1210-size inductors. |
Use Scenario: Powers CPU/GPU cores in head-unit systems requiring multiple voltage rails with tight sequencing. IC Role / Device Role / Timing Role: High-precision point-of-load regulator with PGOOD signaling for safe power-up sequencing and fault reporting. Use Value: Factory-preset VOUT with I²C override allows flexible BOM reuse across platforms; spread-spectrum reduces interference with AM/FM radio receivers. |
| Automotive Telematics Control Unit (TCU) | Electric Power Steering (EPS) MCU Supply |
|
Use Scenario: Delivers 1.1V @ 4A to cellular modem and GNSS processor in LTE/5G telematics modules. IC Role / Device Role / Timing Role: Automotive-grade synchronous buck with robust ESD immunity and wide input range for battery-supplied operation. Use Value: 3.0V–5.5V input range tolerates cold-crank dips and load-dump surges; -40°C to +125°C rating ensures reliability in under-hood mounting. |
Use Scenario: Provides 1.2V @ 5A to 32-bit safety MCU (e.g., Infineon TC3xx) in EPS motor control units. IC Role / Device Role / Timing Role: Safety-critical power stage with overtemperature and overcurrent protection, PGOOD monitoring, and fail-safe shutdown. Use Value: Thermal shutdown with 15°C hysteresis prevents latch-up during prolonged stall events; SYNC output enables multi-rail synchronization for deterministic timing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-current automotive buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPQ4436-AEC1 | 4A rated, 2.2MHz, no I²C interface, fixed-output only; lacks remote sensing and spread-spectrum. | Suitable for cost-sensitive non-DVS applications where voltage is static and layout space permits larger inductors. | Select when I²C control and differential sensing are unnecessary and lower current capacity suffices. |
| TPS62933-Q1 | 3A rated, 2.2MHz, I²C-compatible but no spread-spectrum or remote sense; uses different register map and VID encoding. | Fits lower-power domains like instrument clusters or gateway ECUs where 6A headroom is excessive. | Choose if TI ecosystem integration is preferred and full 6A capability is not required. |
Compared with MPQ4436-AEC1 and TPS62933-Q1, the MAX20010CATPX/V+ uniquely combines 6A output, I²C-programmable DVS, differential remote sensing, and AEC-Q100 Grade-1 qualification in a single 4mm × 4mm package-making it the only option for high-dynamic-range automotive SoC core rails requiring both precision and flexibility.
Availability
MAX20010CATPX/V+ is available at Aetrix Electronics and suitable for automotive ADAS domain controllers, infotainment SoC core rails, and electric power steering MCU supplies requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.
Supply support for MAX20010CATPX/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 technologies, serving automotive, industrial, communications, and healthcare markets with precision power, sensing, and signal chain solutions.
The MAX20010 series belongs to Analog Devices' automotive power management portfolio, designed specifically for demanding point-of-load applications in ADAS, infotainment, and chassis control systems where reliability, accuracy, and EMI robustness are critical.
FAQ
What is the factory-preset output voltage for MAX20010CATPX/V+?
The MAX20010CATPX/V+ has a factory-preset output voltage determined by its ordering code suffix; the /V+ variant corresponds to a nominal 1.0V output. This value is stored in OTP and can be dynamically adjusted via I²C using the VID register (0x07) with 10mV or 12.5mV step resolution depending on the VSTEP bit setting. The MAX20010CATPX/V+ maintains ±2% accuracy across temperature and load when configured accordingly.
Does MAX20010CATPX/V+ support synchronization with external clock sources?
Yes, the MAX20010CATPX/V+ supports external clock synchronization through its multifunction SYNC pin. When configured as an input (factory-default for /V+), applying a 1.8MHz–2.6MHz clock signal forces the device into forced-PWM mode and locks its switching frequency to the external source. This capability enables phase alignment across multiple regulators in complex automotive power trees, reducing beat frequencies and conducted EMI.
How does the differential remote sensing (RS+/RS−) function in MAX20010CATPX/V+?
The MAX20010CATPX/V+ uses RS+ and RS− pins to measure output voltage directly at the load terminals, rejecting voltage drop across PCB traces and connectors. This feedback path bypasses the main output capacitor and connects to the load-side of the output filter, enabling ±2% regulation accuracy even with up to 100mV of IR loss. Proper routing requires matched-length, tightly coupled differential traces away from noisy switching nodes.
What protection features are integrated into MAX20010CATPX/V+?
The MAX20010CATPX/V+ integrates overcurrent protection (OCP) with 7.76A–11.64A programmable threshold, overtemperature shutdown at 165°C with 15°C hysteresis, undervoltage lockout (UVLO) at 2.85V (rising), and open-drain PGOOD monitoring with 256-clock timeout. All protections trigger automatic recovery or require EN cycling, and status bits (OC, UV, OV, VRHOT) are readable via I²C register 0x03 for system diagnostics.
Can MAX20010CATPX/V+ operate in skip mode, and how is it enabled?
Yes, the MAX20010CATPX/V+ operates in skip mode by default when the SYNC pin is left floating or pulled to GND. In this mode, the controller skips switching cycles under light loads to improve efficiency, reducing quiescent current to 300µA typical. Skip mode is disabled when SYNC is driven high (to AV or external clock), forcing continuous PWM operation-ideal for noise-sensitive applications like audio or RF subsystems.
MAX20010CATPX/V+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 20-WFQFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Programmable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 3V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.5V
- Voltage - Output (Max):
- 1.5875V
- Current - Output:
- 6A
- 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:
- 20-TQFN (4x4)
MAX20010CATPX/V+ FAQ
1.How can I place an order for MAX20010CATPX/V+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20010CATPX/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 MAX20010CATPX/V+ reliable?
The price and inventory of MAX20010CATPX/V+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX20010CATPX/V+ is usually 5 days.
3.What payment methods are accepted for MAX20010CATPX/V+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20010CATPX/V+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20010CATPX/V+?
MAX20010CATPX/V+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20010CATPX/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 MAX20010CATPX/V+?
For technical support, including MAX20010CATPX/V+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20010CATPX/V+ requirements.
6.How does Aetrix verify that MAX20010CATPX/V+ is sourced from the original manufacturer or authorized distributors?
All MAX20010CATPX/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 MAX20010CATPX/V+ meets industry standards.
7.What is the process for return or replacement of MAX20010CATPX/V+?
All MAX20010CATPX/V+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX20010CATPX/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 MAX20010CATPX/V+ part is unused and in its original packaging.
Return procedure for MAX20010CATPX/V+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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