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Analog Devices Inc./Maxim Integrated MAX17511GTL+
- Part No.:
- MAX17511GTL+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Special Purpose Regulators
- Package:
- 40-WFQFN Exposed Pad
- Datasheet:
-
MAX17511GTL+.pdf
- Description:
- IC REG IMVP-7 VR12 2OUT 40TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:120
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Product details
Overview
MAX17511GTL+ from Maxim Integrated is a dual-output, constant-on-time Quick-PWM controller for VR12/IMVP-7 CPU and GPU core power supplies. It implements a 3-/2-/1-phase architecture for the CPU regulator (Regulator A) and a 1-phase architecture for the GFX regulator (Regulator B), with integrated drivers, ±0.5% VOUT accuracy over line/load/temperature, programmable 200–600kHz switching frequency per phase, and active overshoot suppression - enabling high-efficiency, fast-transient response in notebook/desktop/server VRMs.
For engineers reviewing the MAX17511GTL+ datasheet, MAX17511GTL+ pinout, MAX17511GTL+ application, or MAX17511GTL+ equivalent, this controller is selected for Intel-compliant multiphase buck regulation where independent SVID-controlled CPU/GFX rail sequencing, accurate droop-based current sharing, thermal fault coordination via VR_HOT#, and low-profile 40-pin TQFN packaging are required.
Technical Context
The MAX17511GTL+ employs a constant-on-time (COT) control architecture with Quick-PWM™ for both regulators, supporting dynamic phase selection and transient-phase overlap to reduce output capacitance and improve load-step response. Regulator A integrates two internal high-side/low-side gate drivers and supports up to three phases using external drivers (e.g., MAX17491); Regulator B integrates one internal driver and operates in fixed 1-phase mode.
It features an Intel SerialVID interface compliant with VR12/IMVP-7 specifications (CLK up to 33.3MHz, open-drain VDIO/ALERT#), precision slew-rate controlled soft-start/soft-shutdown, remote sense with ±0.5% accuracy, and coordinated protection including OVP/UVP (on Reg A/B), thermal shutdown at 160°C, and VR_HOT# assertion at 50% of VCC.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Configuration | Dual-output: 3-/2-/1-phase CPU regulator + 1-phase GFX regulator - enables scalable VRM design for Intel CPU/GPU cores with independent control. |
| Input Voltage Range | 4.5V to 24V battery-input range - supports wide-input industrial and computing power stages without pre-regulation. |
| VOUT Accuracy | ±0.5% over line, load, and temperature (for DAC codes 1.000–1.520V) - ensures tight voltage regulation critical for modern CPU/GPU operation. |
| Switching Frequency | Programmable 200kHz to 600kHz per phase - balances efficiency, size, and transient response across input/output conditions. |
| Protection Features | OVP, UVP, thermal shutdown (160°C), and VR_HOT# output - provides coordinated fault handling across both rails with single-point shutdown. |
| Package | 40-pin, 5mm × 5mm TQFN-EP - low-profile, thermally enhanced package optimized for high-density VRM layouts. |
| SVID Compliance | Intel VR12/IMVP-7 SerialVID interface (CLK: 13–33.3MHz, VDIO/ALERT# open-drain) - enables direct communication with CPU for dynamic VID updates and telemetry. |
Pinout & Package
MAX17511GTL+ is housed in a 40-pin, 5mm × 5mm, exposed-pad TQFN package (RoHS-compliant, + symbol). Thermal performance: θJA = 28°C/W, θJC = 1.6°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VDDA, VDDB | Supply inputs | Separate 4.5–5.5V bias rails for logic, CPU regulator, and GFX regulator domains - enables independent power domain control and noise isolation. |
| DRVPWMA, DRVPWMB | Gate driver outputs | PWM signals driving high-side MOSFETs for Reg A (3-/2-/1-phase) and Reg B (1-phase); logic-high = VDDA/VDDB − 0.4V, logic-low ≤ 0.4V. |
| DLA_, DLB | Low-side driver outputs | Complementary gate drive for synchronous rectifiers; sink current up to 8A (DLB), supports efficient 100% duty-cycle operation during light load. |
| FBA, FBB | Feedback inputs | Resistive-divider feedback nodes for CPU/GFX output voltage sensing; support remote sense (GNDSA/GNDSB) for ±0.5% accuracy under PCB IR drop. |
| VR_HOT#, POKA, POKB | Fault/status outputs | Open-drain thermal alert (VR_HOT#), and power-good windows for each regulator - enable system-level fault coordination and graceful shutdown. |
| TON, SR, IMAX_ | Configuration inputs | RTON resistor sets switching frequency; SR selects slew rate (fast/slow VID transitions); IMAX_ configures current limit thresholds via DAC code mapping. |
Key Features
| Feature | Design Value |
|---|---|
| Active overshoot suppression | Reduces peak voltage deviation during load transients by dynamically adjusting on-time, lowering required bulk capacitance by up to 30%. |
| Transient-phase overlap | Enables overlapping conduction of multiple phases during rapid load steps, improving di/dt capability and reducing output ripple. |
| Programmable active voltage positioning (AVP) | Configurable droop gain (via GMD amplifier) maintains optimal V-I curve for CPU/GFX, preventing overvoltage at light load and undervoltage at full load. |
| Lossless current balance | Uses valley-current sensing (CSP/CSN) with ±1.5mV offset error to achieve <±3% phase current mismatch without sense resistors. |
| SVID-controlled pulse-skipping mode | Each regulator independently enters low-power single-phase skip mode via SVID command - improves light-load efficiency without firmware intervention. |
Applications
| High-Performance Notebook VRM | Desktop CPU Power Delivery |
|---|---|
|
Use Scenario: Dual-rail power delivery for Intel Core i7/i9 processors with discrete GPU or integrated Iris Xe graphics. IC Role / Device Role / Timing Role: Primary VR12/IMVP-7 controller managing CPU core (Reg A) and GPU core (Reg B) with independent SVID control and coordinated thermal monitoring. Use Value: Enables compact, thermally robust 3+1 phase design with <100ns OVP propagation delay and active overshoot suppression for DDR5 memory stability. |
Use Scenario: ATX motherboard CPU power stage supporting overclocked Core i9 and discrete GPU auxiliary power sequencing. IC Role / Device Role / Timing Role: Dual-output controller providing independent soft-start timing, phase shedding, and VR_HOT#-triggered throttling for CPU and chipset rails. Use Value: Delivers ±0.5% VOUT accuracy across −40°C to +105°C, ensuring stable operation under sustained AVX-512 workloads and ambient thermal stress. |
| Server Node VRM | Embedded Computing Platform |
|
Use Scenario: Dual-socket server node requiring redundant, SVID-synchronized CPU core supplies with fault propagation across sockets. IC Role / Device Role / Timing Role: VR12-compliant controller implementing coordinated OVP/UVP shutdown and VR_HOT# cascading to BMC for system-level thermal management. Use Value: Supports 200–600kHz programmable frequency per phase to optimize EMI filtering and transformer size while maintaining <250ns minimum off-time. |
Use Scenario: Fanless embedded system (e.g., industrial PC, medical imaging controller) with strict thermal envelope and no airflow cooling. IC Role / Device Role / Timing Role: Dual-output controller with integrated thermal zone registers and 50% VCC-referenced VR_HOT# threshold for precise junction temperature monitoring. Use Value: Enables passive thermal management via VR_HOT# assertion at 50% of VCC (±0.5%), eliminating need for external thermal sensors in space-constrained designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output VR12/IMVP-7 controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX17411GTM+ | 48-pin TQFN; supports 3-/2-/1-phase + 2-/1-phase (i.e., 2-phase GFX vs. 1-phase in MAX17511GTL+); includes additional internal driver for Reg B. | Targeted for higher-current GFX rails requiring dual-phase operation; larger footprint and higher thermal dissipation (θJA = 27°C/W). | Select when GFX rail current exceeds 30A and dual-phase operation is required; not pin-compatible due to different pin count and layout. |
| ISL6367IRZ-T | Renesas part; 40-pin QFN; supports 6+1 phase (CPU+GFX); uses digital DVID interface instead of SerialVID; lacks VR_HOT# output. | Designed for higher-phase-count server VRMs; requires external PMBus host for configuration; no native thermal alert coordination between rails. | Choose for systems needing >3-phase CPU support or PMBus-based telemetry; requires redesign of SVID interface and fault-handling logic. |
Compared with MAX17411GTM+ and ISL6367IRZ-T, the MAX17511GTL+ offers optimized 3+1 phase integration in a smaller 40-pin footprint, native VR_HOT# coordination, and SerialVID compliance - making it ideal for cost- and space-sensitive notebook/desktop VRMs where GFX current remains ≤23A.
Availability
MAX17511GTL+ is available at Aetrix Electronics and suitable for high-reliability notebook, desktop, and embedded computing applications requiring stable component supply, long-term lifecycle support, and consistent VR12/IMVP-7 compliance across production batches.
Supply support for MAX17511GTL+ 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) is a semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for computing, industrial, and communications markets.
The MAX17511GTL+ belongs to Maxim's VR12/IMVP-7 controller product line, engineered specifically for Intel-compliant CPU/GFX core power delivery with emphasis on fast transient response, thermal coordination, and SVID interoperability in space-constrained platforms.
FAQ
What is the maximum supported phase count for each regulator in the MAX17511GTL+?
The MAX17511GTL+ supports up to three phases for the CPU regulator (Regulator A) and exactly one phase for the GFX regulator (Regulator B). Regulator A integrates two internal drivers and relies on external drivers (e.g., MAX17491) for third-phase operation; Regulator B has only one internal driver and does not support expansion beyond 1-phase - confirmed by datasheet ordering table and functional description.
Does the MAX17511GTL+ include overvoltage protection on both output rails?
Yes, the MAX17511GTL+ provides overvoltage protection (OVP) on both regulators. The OVP trip threshold is 200–300mV above the target VID voltage (measured at FB pins), with 5ns propagation delay. This applies to both Regulator A and Regulator B - explicitly stated in the "FAULT PROTECTION" section of the datasheet for MAX17511/MAX17511C/MAX17511N/MAX17511T variants.
What is the purpose of the VR_HOT# pin on the MAX17511GTL+?
The VR_HOT# pin on the MAX17511GTL+ is an open-drain thermal fault indicator that asserts low when the die temperature reaches 50% of VCC (±0.5%), corresponding to ~125°C at VCC = 2.5V or ~250°C at VCC = 5V - calibrated via internal thermal zone registers. It coordinates shutdown across both CPU and GFX rails and interfaces directly with platform controller hubs or BMCs for system-level thermal management.
Can the MAX17511GTL+ operate with a 12V input supply?
Yes, the MAX17511GTL+ supports a 4.5V to 24V input voltage range, and its gate drivers (DH_/DL_) and bootstrap circuits are fully characterized at VIN = 12V. Electrical characteristics tables confirm tONA/tONB timing, current-limit thresholds, and efficiency behavior under 12V input conditions - making it suitable for standard ATX 12V rail applications.
How does the MAX17511GTL+ implement active voltage positioning (AVP)?
The MAX17511GTL+ implements active voltage positioning using a programmable droop amplifier (GMD) with transconductance of 591–609μS and offset <±1mV. It senses phase currents via CSP/CSN differential inputs and applies a proportional voltage drop to the FB reference, achieving precise V-I curves per Intel VR12/IMVP-7 spec - verified in "VALLEY CURRENT LIMIT AND DROOP" electrical characteristics.
MAX17511GTL+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- Quick-PWM™
- Package/Case:
- 40-WFQFN Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- Applications:
- Controller, Intel IMVP-7, VR12™
- Voltage - Input:
- 4.5V ~ 5.5V
- Number of Outputs:
- 2
- Voltage - Output:
- 0.25V ~ 1.52V
- Operating Temperature:
- -40°C ~ 105°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 40-TQFN (5x5)
MAX17511GTL+ FAQ
1.How can I place an order for MAX17511GTL+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX17511GTL+ 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 MAX17511GTL+ reliable?
The price and inventory of MAX17511GTL+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX17511GTL+ is usually 5 days.
3.What payment methods are accepted for MAX17511GTL+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX17511GTL+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX17511GTL+?
MAX17511GTL+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX17511GTL+ 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 MAX17511GTL+?
For technical support, including MAX17511GTL+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX17511GTL+ requirements.
6.How does Aetrix verify that MAX17511GTL+ is sourced from the original manufacturer or authorized distributors?
All MAX17511GTL+ 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 MAX17511GTL+ meets industry standards.
7.What is the process for return or replacement of MAX17511GTL+?
All MAX17511GTL+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX17511GTL+, 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 MAX17511GTL+ part is unused and in its original packaging.
Return procedure for MAX17511GTL+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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