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Analog Devices Inc./Maxim Integrated MAX20830AFE+T
- Part No.:
- MAX20830AFE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-PowerVFQFN
- Datasheet:
-
MAX20830AFE+T.pdf
- Description:
- IC REG BUCK ADJ 30A 16FC2QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,023
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Product details
Overview
MAX20830AFE+T from Analog Devices is a fully integrated 30A, 2MHz synchronous step-down DC-DC switching regulator with PMBus interface, operating from 2.7V to 16V input and delivering 0.4V–5.8V output. It features fixed-frequency current-mode control, internal compensation, selectable Advanced Modulation Scheme (AMS), and integrated 1.8V LDO for gate drive and analog circuitry-designed for high-density point-of-load power in data center and networking equipment.
For engineers reviewing the MAX20830AFE+T datasheet, MAX20830AFE+T pinout, MAX20830AFE+T application, or MAX20830AFE+T equivalent, key selection considerations include its 30A continuous load capability at +125°C junction, 500kHz–2MHz configurable switching frequency, differential remote sense, PMBus telemetry (IOUT/VOUT/VIN/temperature), and programmable overcurrent thresholds via PGM0/PGM1 resistors.
Technical Context
The MAX20830AFE+T implements fixed-frequency peak current-mode control with internal voltage-loop compensation and slope compensation. Its PWM modulator drives high-side and low-side MOSFETs using a clock aligned to either a fixed or phase-shifted signal when AMS is enabled.
AMS dynamically modulates both leading and trailing edges during fast load transients to extend closed-loop bandwidth without phase-margin penalty, reducing output capacitance requirements. DCM operation is optional and disabled by default, entering only after 56 consecutive cycles of inductor valley current below threshold.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7V to 16V - supports wide industrial and server rail inputs including 3.3V, 5V, 12V, and 15V systems. |
| Output Current | 30A continuous - rated at TJ = +125°C with 200LFM airflow; enables single-regulator solutions for high-power ASIC/FPGA cores. |
| Switching Frequency | 500kHz to 2MHz - configurable via PGM1 resistor or PMBus to optimize size (higher fSW → smaller inductors/caps) vs. efficiency. |
| Feedback Reference | 0.4V to 0.8V adjustable via PMBus - supports adaptive voltage scaling (AVS) for dynamic core voltage control in processors. |
| PMBus Telemetry | READ_IOUT, READ_VOUT, READ_VIN, READ_TEMPERATURE - real-time monitoring with ±4°C temp accuracy and ±3A current accuracy up to 38A range. |
| Protection Features | POCP (23–38A selectable), FPOCP (52A latched), NOCP (−83% of POCP), OVP, OTP (+155°C), BST UVLO - robust fault handling with hiccup or latch-off behavior per fault type. |
| Package | 16-pin FC2QFN (4.3mm × 6.55mm) - thermally enhanced exposed-pad package with θJC = 0.33°C/W for high-power density layout. |
Pinout & Package
MAX20830AFE+T is housed in a 4.3mm × 6.55mm, 16-pin FC2QFN package with exposed thermal pad. The package supports −40°C to +125°C junction temperature operation and is footprint-compatible with MAX20840T, MAX20815, and MAX20810.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| LX | Switching node | Direct connection to output inductor; carries full AC switching current and must be routed with minimal loop area. |
| BST | Bootstrap supply | Connects 0.47μF capacitor to LX to generate gate drive voltage for high-side MOSFET. |
| VCC | Internal 1.8V LDO output | Powers gate drivers; requires ≥4.7μF ceramic decoupling to PGND. |
| LDOIN | Optional external bias input | Accepts 2.5V–5.5V supply to improve efficiency by bypassing VDDH-derived LDO path. |
| AVDD | Analog 1.8V supply | Powered via 2.2Ω–4.7Ω resistor from VCC; supplies analog core and requires ≥1μF decoupling to AGND. |
| SNSP/SNSN | Differential remote sense inputs | Enable precise regulation at load by sensing output voltage directly at point-of-load; reject IR drop in PCB traces. |
| PGM0/PGM1 | Configuration strapping pins | Set POCP level (38/33/28/23A), switching frequency (500–2000kHz), scenario, and PMBus address via resistor-to-AGND. |
| CLK/DATA | PMBus interface | SMBus-compliant 1000kHz serial interface for configuration, telemetry, and fault logging; supports hot-plug and multi-device addressing. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated power stage | Monolithic 30A buck converter with internal high- and low-side MOSFETs eliminates external power switches and reduces BOM count. |
| AMS transient enhancement | Enables dual-edge modulation during load steps to reduce output voltage deviation and minimize required bulk capacitance. |
| Programmable protection thresholds | Four selectable POCP levels (23–38A) and configurable OVP/UVP allow tailoring to specific load profiles and safety margins. |
| Differential remote sensing | Compensates for PCB trace resistance between regulator and load, ensuring ±0.6% feedback accuracy under varying current conditions. |
| Internal LDO with bias option | Reduces system-level supply complexity: VCC powers gate drivers, while optional LDOIN improves efficiency at light-to-moderate loads. |
Applications
| Data Center Power | Communications Equipment |
|---|---|
Use Scenario: Core voltage regulation for AI accelerators and high-performance CPUs in rack-scale servers. IC Role / Device Role / Timing Role: Primary point-of-load regulator delivering dynamically scaled 0.6V–1.2V at up to 30A with AVS support via PMBus VOUT_COMMAND. Use Value: AMS and 2MHz operation enable <500ns response to 10A/μs load steps while maintaining <±15mV regulation window. | Use Scenario: Intermediate bus conversion in 5G baseband units and packet-optical transport systems. IC Role / Device Role / Timing Role: Step-down from 48V intermediate bus (via intermediate converter) to 3.3V/5V rails powering FPGAs, SerDes, and PHYs. Use Value: 94.5% peak efficiency at 12VIN/1.8VOUT and thermal robustness to +125°C ensure reliability in sealed, fanless enclosures. |
| Networking Equipment | Servers and Storage |
Use Scenario: Powering switch fabric ASICs and network processors in enterprise switches and routers. IC Role / Device Role / Timing Role: High-current POL regulator with PMBus telemetry for real-time health monitoring and predictive maintenance. Use Value: READ_IOUT and READ_TEMPERATURE reporting every 1.64ms/3.13ms enables accurate power budgeting and thermal derating algorithms. | Use Scenario: Memory subsystem regulation (DDR4/DDR5 VDDQ, VPP) in dual-socket servers and NVMe storage controllers. IC Role / Device Role / Timing Role: Precision 1.1V/1.8V regulator with differential remote sense to maintain tight voltage tolerance across memory DIMMs. Use Value: ±0.6% feedback accuracy and -40°C to +125°C operation guarantee stable memory timing margins across environmental stress tests. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-current buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX20840T | Same 16-pin FC2QFN footprint, 40A rating, 2MHz max fSW, but requires external bootstrap capacitor and lacks integrated LDO for VCC. | Targeted at higher-current applications where 40A headroom is needed; no internal 1.8V LDO means external bias required for gate drive. | Select MAX20840T only if >30A continuous load or higher peak current margin is required; MAX20830AFE+T offers lower BOM count and simpler biasing. |
| TPS546D24A | 40A, 2.2MHz, 2.9V–16V input, PMBus 1.3 compliant; uses external compensation and requires separate VDD bias supply. | Designed for ultra-fast transient response in AI/ML accelerators; supports higher VIN max and faster clock rate but needs more external components. | Choose TPS546D24A when 2.2MHz operation or tighter PMBus 1.3 compliance is mandatory; MAX20830AFE+T provides better integration and thermal performance in space-constrained layouts. |
Compared with MAX20840T and TPS546D24A, the MAX20830AFE+T delivers optimal balance of integration (internal LDO, compensation), thermal performance (0.33°C/W θJC), and programmability (AMS, multi-threshold POCP) for 30A-class server and networking POL designs-without requiring external gate-drive bias or complex loop tuning.
Availability
MAX20830AFE+T is available at Aetrix Electronics and suitable for data center power, communications infrastructure, networking equipment, servers and storage, and point-of-load voltage regulators requiring stable component supply across extended product lifecycles.
Supply support for MAX20830AFE+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 precision instrumentation, industrial automation, communications, and automotive markets.
The MAX20830AFE+T belongs to Analog Devices' Power by Linear™ family of high-efficiency, digitally enhanced DC-DC converters-engineered specifically for high-density, thermally demanding point-of-load applications in cloud infrastructure and 5G systems.
FAQ
What is the maximum continuous output current supported by the MAX20830AFE+T?
The MAX20830AFE+T supports 30A continuous output current at TJ = +125°C with 200LFM airflow. At TA = +85°C with no airflow, it delivers 28A. These ratings are validated per the Safe Operating Area curves in the datasheet and assume proper PCB thermal design with the exposed pad soldered to a thermal plane.
Does the MAX20830AFE+T require external compensation components?
No, the MAX20830AFE+T features internal voltage-loop compensation. Its fixed-frequency current-mode architecture eliminates the need for external Type-II or Type-III compensation networks. Loop stability is maintained across all PGM1-selected scenarios (A–F), each with pre-tuned RVGA values ranging from 10.1kΩ to 26.8kΩ.
How is the overcurrent protection threshold configured on the MAX20830AFE+T?
The MAX20830AFE+T's positive overcurrent protection (POCP) threshold is set via a resistor from PGM0 to AGND, selecting one of four levels: 38A, 33A, 28A, or 23A. Table 1 in the datasheet maps resistor values (95.3Ω to 115kΩ) to each POCP level and corresponding PMBus address. Fast POCP (52A) is fixed and non-configurable.
Can the MAX20830AFE+T operate with an external bias supply on the LDOIN pin?
Yes, the MAX20830AFE+T accepts a 2.5V–5.5V external bias on the LDOIN pin to power the internal 1.8V LDO (VCC), improving efficiency-especially at light-to-moderate loads. When LDOIN is used, the VCC supply is derived from LDOIN instead of VDDH, reducing power loss in the input-stage LDO. The pin may be left floating if unused.
What is the purpose of the Advanced Modulation Scheme (AMS) in the MAX20830AFE+T?
The Advanced Modulation Scheme (AMS) in the MAX20830AFE+T enhances load-transient response by enabling dual-edge (leading and trailing) PWM modulation during large current steps. This extends closed-loop bandwidth without sacrificing phase margin, allowing faster recovery (<500ns) and reduced output voltage deviation-critical for powering modern high-dV/dt ASICs and CPUs.
MAX20830AFE+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 16-PowerVFQFN
- Packaging:
- Tape & Reel (TR)
- 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):
- 16V
- Voltage - Output (Min/Fixed):
- 0.4V
- Voltage - Output (Max):
- 5.8V
- Current - Output:
- 30A
- Frequency - Switching:
- 500kHz ~ 2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-FC2QFN (4.3x6.55)
MAX20830AFE+T FAQ
1.How can I place an order for MAX20830AFE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20830AFE+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 MAX20830AFE+T reliable?
The price and inventory of MAX20830AFE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX20830AFE+T is usually 5 days.
3.What payment methods are accepted for MAX20830AFE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20830AFE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20830AFE+T?
MAX20830AFE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20830AFE+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 MAX20830AFE+T?
For technical support, including MAX20830AFE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20830AFE+T requirements.
6.How does Aetrix verify that MAX20830AFE+T is sourced from the original manufacturer or authorized distributors?
All MAX20830AFE+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 MAX20830AFE+T meets industry standards.
7.What is the process for return or replacement of MAX20830AFE+T?
All MAX20830AFE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX20830AFE+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 MAX20830AFE+T part is unused and in its original packaging.
Return procedure for MAX20830AFE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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