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Analog Devices Inc./Maxim Integrated MAX20830TAFE+T
- Part No.:
- MAX20830TAFE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-PowerWFQFN
- Datasheet:
-
MAX20830TAFE+T.pdf
- Description:
- IC REG BUCK ADJ 30A 16FC2QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,106
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Product details
Overview
MAX20830TAFE+T from Analog Devices is a fully integrated, PMBus-enabled 30A step-down DC-DC switching regulator with fixed-frequency current-mode control, operating from 2.7V to 16V input and delivering 0.4V–5.8V output. It features internal compensation, selectable advanced modulation scheme (AMS) for fast load transients, differential remote sensing, and integrated 1.8V LDO for gate drive and analog circuitry - deployed in high-density data center point-of-load applications.
For engineers reviewing the MAX20830TAFE+T datasheet, MAX20830TAFE+T pinout, MAX20830TAFE+T application, or MAX20830TAFE+T equivalent, key selection considerations include its 2MHz configurable switching frequency, -40°C to +125°C junction temperature rating, 94.5% peak efficiency at 12VIN/1.8VOUT, PMBus telemetry of IOUT, VOUT, VIN, and TJ, and FC2QFN-16 package with exposed thermal pad.
Technical Context
The MAX20830TAFE+T implements fixed-frequency peak current-mode control with internal voltage-loop compensation and programmable slope compensation. Its control architecture supports both conventional trailing-edge PWM and AMS-enabled leading/trailing-edge modulation to extend closed-loop bandwidth without phase-margin penalty during large load steps.
It integrates dual overcurrent protection: cycle-by-cycle positive overcurrent protection (POCP) with four selectable thresholds (23A–38A via PGM0), and fast POCP (52A latched fault), plus negative overcurrent protection (NOCP) at -83% of POCP. Faults trigger hiccup-mode recovery (20ms restart delay) except for FPOCP, which requires power cycle.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 30A continuous (at TA = +55°C, 200LFM airflow); derates to 28A at +85°C no airflow - defines maximum sustained load capability under thermal constraints. |
| Input Voltage Range | 2.7V to 16V - supports wide-range industrial and server supply rails including 3.3V, 5V, 12V, and 15V inputs. |
| Output Voltage Range | 0.4V to 5.8V, adjustable via external resistor divider or PMBus VOUT_COMMAND (0.4V–0.8V reference range) - enables precise core, I/O, and memory rail regulation. |
| Switching Frequency | 500kHz to 2MHz, pin-strappable via PGM1 - higher frequencies reduce external inductor/capacitor size; lower frequencies improve light-load efficiency. |
| Efficiency | 94.5% peak at VIN = 12V, VOUT = 1.8V, full load - reflects optimized power stage integration and low RDS(on) MOSFETs. |
| Thermal Performance | θJA = 44.3°C/W (closed-top FC2QFN), θJC = 7.5°C/W - enables direct thermal coupling to PCB copper or heatsink for high-power operation. |
| PMBus Interface | Full SMBus v3.0 compliance; supports READ_IOUT, READ_VOUT, READ_VIN, READ_TEMPERATURE, OPERATION, VOUT_COMMAND - enables real-time telemetry and dynamic voltage scaling in intelligent power systems. |
Pinout & Package
MAX20830TAFE+T is housed in a 4.3mm × 6.55mm, 16-pin FC2QFN package with exposed thermal pad (package code F164A6F+2), rated for -40°C to +125°C junction temperature operation. The closed-top variant (T-suffix) provides enhanced thermal resistance to case (θJC = 7.5°C/W) versus open-top MAX20830.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| LX | Switching node | Connects directly to inductor; carries high di/dt pulsed current - requires short, low-inductance layout to minimize ringing and EMI. |
| BST | Bootstrap supply | Drives high-side MOSFET gate; requires 0.47μF ceramic capacitor to LX - critical for reliable high-side conduction. |
| VCC | Internal 1.8V LDO output | Powers gate drivers; requires ≥4.7μF decoupling to PGND - ensures stable drive strength across load and temperature. |
| LDOIN | Optional external bias input | Accepts 2.5V–5.5V supply to improve efficiency; floating if unused - enables optimization when auxiliary bias rail is available. |
| AVDD | Analog 1.8V supply | Powered via 2.2Ω–4.7Ω resistor from VCC; requires ≥1μF decoupling to AGND - isolates noise-sensitive analog circuitry. |
| SNSP/SNSN | Differential remote sense inputs | Enable accurate load-point regulation by compensating for IR drop in PCB traces - improves output voltage accuracy under dynamic load. |
| PGM0/PGM1 | Configuration strapping inputs | Set POCP threshold (PGM0) and switching frequency/predefined scenario (PGM1) via resistor-to-ground - enables hardware-configurable startup behavior. |
| CLK/DATA | PMBus interface | SMBus-compatible serial bus (1000kHz max); supports telemetry, configuration, and fault reporting - enables system-level power management. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated high-current power stage | 30A output with internal MOSFETs, drivers, and bootstrap circuit - eliminates external discrete FETs and gate drivers, reducing BOM count and layout area. |
| Advanced Modulation Scheme (AMS) | Enables leading/trailing-edge modulation during load transients - reduces output voltage deviation and minimizes required bulk capacitance. |
| Programmable protection thresholds | Four POCP levels (23A–38A) and selectable DCM entry via PGM pins - allows tuning protection and light-load efficiency to match specific application requirements. |
| Differential remote sensing | Compensates for up to ±100mV sense line drop - maintains ±0.6% output voltage accuracy at the load, critical for CPU/GPU core rails. |
| Internal LDO with dual bias options | 1.8V VCC generated from VDDH or optional LDOIN (2.5V–5.5V) - improves conversion efficiency by >2% when external bias is used. |
Applications
| Data Center Point-of-Load | AI Accelerator Power |
|---|---|
Use Scenario: Regulating 0.75V–1.2V core supplies for high-performance ASICs in GPU/AI training servers with rapid load steps up to 20A/μs. IC Role / Device Role / Timing Role: Primary step-down regulator with AMS-enhanced transient response and PMBus telemetry for dynamic voltage/frequency scaling (DVFS). Use Value: Maintains <±15mV output deviation during 30A load steps; enables real-time current/voltage monitoring for thermal and power budgeting. |
Use Scenario: Delivering 3.3V I/O and 0.8V memory rails to multi-die AI accelerators with strict sequencing and fault logging requirements. IC Role / Device Role / Timing Role: Dual-rail POL converter with independent PMBus addressability and synchronized soft-start via OPERATION command. Use Value: Supports adaptive voltage scaling (0.4V–0.8V reference) and provides per-rail telemetry for system-level power integrity analysis. |
| 5G Baseband Processing | Enterprise Networking Switches |
Use Scenario: Powering FPGA-based baseband units requiring 1.0V/12A and 1.8V/8A rails with tight ripple (<10mVpp) and fast transient recovery. IC Role / Device Role / Timing Role: High-density, thermally optimized POL regulator with differential remote sense and programmable loop gain (via PGM1 scenarios A–F). Use Value: Achieves <5μs recovery time from 50%–100% load step; θJA = 44.3°C/W enables operation on compact 4-layer PCBs without heatsinks. |
Use Scenario: Supplying 1.2V/20A processor cores and 3.3V/5A PHY interfaces in 1RU switches with constrained board space and airflow. IC Role / Device Role / Timing Role: Single-chip 30A solution replacing multi-phase controllers + DrMOS, with PMBus fault logging for field diagnostics. Use Value: Reduces component count by >40%; reports overtemperature, OVP, and POCP events via PMBus for predictive maintenance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-current, PMBus-enabled step-down regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX20840T | 40A rating, identical FC2QFN-16 footprint and pinout; supports same 2.7V–16V input and 0.4V–5.8V output range but with higher current capability and updated AMS algorithm. | Targeted at next-gen AI/ML processors requiring >30A per rail; shares same evaluation kit (MAX20840EVKIT#) and firmware compatibility. | Select MAX20840T when >30A continuous output or higher peak current headroom is required; pin-compatible upgrade path. |
| MP2965GQZ-0000-P | 30A Monolithic DC/DC with PMBus; 2.7V–16V input, 0.5V–5.5V output; uses different control architecture (adaptive on-time) and lacks AMS; θJA = 52°C/W (higher thermal resistance). | Designed for cost-sensitive telecom infrastructure; offers fewer PMBus telemetry registers and no differential remote sense. | Choose MP2965GQZ-0000-P only if AMS and SNSP/SNSN precision are not required and thermal margin permits higher θJA. |
Compared with MAX20840T, MAX20830TAFE+T delivers proven 30A performance with superior transient response via AMS and tighter output accuracy via differential sensing; versus MP2965GQZ-0000-P, it provides higher thermal efficiency, richer telemetry, and robust fault handling essential for mission-critical infrastructure.
Availability
MAX20830TAFE+T is available at Aetrix Electronics and suitable for data center power, AI accelerator boards, 5G baseband units, and enterprise networking switches requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MAX20830TAFE+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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and data center markets with precision power, signal chain, and RF solutions.
The MAX20830TAFE+T belongs to Analog Devices' Power by Linear™ family of high-density, digitally controlled DC-DC regulators - engineered specifically for demanding point-of-load applications in AI, cloud computing, and 5G infrastructure where efficiency, telemetry, and thermal performance are critical.
FAQ
What is the maximum continuous output current of the MAX20830TAFE+T under standard conditions?
The MAX20830TAFE+T delivers 30A continuous output current at TA = +55°C with 200LFM airflow. At higher ambient temperatures - such as +85°C with no airflow - the rated output drops to 28A. These values are validated per the Safe Operating Area (SOA) curves in the datasheet and assume proper PCB thermal design with the exposed pad soldered to a thermal plane.
Does the MAX20830TAFE+T support differential remote voltage sensing, and how is it implemented?
Yes, the MAX20830TAFE+T supports true differential remote sensing via dedicated SNSP and SNSN pins. SNSP connects to the load's positive output node, while SNSN connects to the load's ground reference - enabling compensation for IR drop across PCB traces. This configuration maintains ±0.6% output voltage accuracy at the load, critical for low-voltage, high-current rails like CPU cores.
How does the Advanced Modulation Scheme (AMS) in the MAX20830TAFE+T improve transient response?
The AMS in the MAX20830TAFE+T dynamically modulates both leading and trailing edges of the switching waveform during large load transients - unlike conventional fixed-frequency PWM. This increases effective switching frequency temporarily, accelerating inductor current slew rate and reducing reliance on output capacitance. As a result, output voltage deviation is minimized, and recovery time from 50%–100% load steps is typically under 5μs.
Can the MAX20830TAFE+T operate without an external LDOIN supply, and what is the impact on efficiency?
Yes, the MAX20830TAFE+T operates fully functional with LDOIN left floating - in this mode, the internal 1.8V VCC LDO is powered from VDDH. However, connecting a 2.5V–5.5V external bias to LDOIN improves conversion efficiency by up to 2.5% (e.g., at 12VIN/1.8VOUT), as it avoids regulating down from the higher input voltage. The device seamlessly transitions between bias sources without interruption.
What protection features are integrated into the MAX20830TAFE+T, and how do they behave during fault conditions?
The MAX20830TAFE+T integrates positive/negative overcurrent protection (POCP/NOCP), output overvoltage protection (OVP), input UVLO/OVLO, BST UVLO, and overtemperature protection (OTP). POCP, NOCP, OVP, and OTP trigger hiccup-mode recovery (20ms restart delay), while Fast POCP (52A) causes latched shutdown requiring power cycle. All faults assert the open-drain PGOOD pin low for system-level fault signaling.
MAX20830TAFE+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 16-PowerWFQFN
- 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)
MAX20830TAFE+T FAQ
1.How can I place an order for MAX20830TAFE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20830TAFE+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 MAX20830TAFE+T reliable?
The price and inventory of MAX20830TAFE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX20830TAFE+T is usually 5 days.
3.What payment methods are accepted for MAX20830TAFE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20830TAFE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20830TAFE+T?
MAX20830TAFE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20830TAFE+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 MAX20830TAFE+T?
For technical support, including MAX20830TAFE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20830TAFE+T requirements.
6.How does Aetrix verify that MAX20830TAFE+T is sourced from the original manufacturer or authorized distributors?
All MAX20830TAFE+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 MAX20830TAFE+T meets industry standards.
7.What is the process for return or replacement of MAX20830TAFE+T?
All MAX20830TAFE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX20830TAFE+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 MAX20830TAFE+T part is unused and in its original packaging.
Return procedure for MAX20830TAFE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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