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Analog Devices Inc./Maxim Integrated MAX17482GTL+T
- Part No.:
- MAX17482GTL+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Special Purpose Regulators
- Package:
- 40-WFQFN Exposed Pad
- Datasheet:
-
MAX17482GTL+T.pdf
- Description:
- IC REG CTRLR INTEL 1OUT 40TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,487
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Product details
Overview
The MAX17482GTL+T from Maxim Integrated is a dual-phase, Quick-PWM™ step-down VID power-supply controller supporting IMVP-6.5 specification for notebook CPU core supplies. It delivers ±0.5% output voltage accuracy over line/load/temperature, 7-bit 0–1.50V VID control, and programmable 200kHz–800kHz switching frequency. Its active voltage positioning, true differential current sense, and phase-good (PHASEGD) fault detection enable high-efficiency, low-ripple power delivery in space-constrained mobile platforms.
For engineers reviewing the MAX17482GTL+T datasheet, MAX17482GTL+T pinout, MAX17482GTL+T application, or MAX17482GTL+T equivalent, key selection considerations include IMVP-6.5 compliance, dual-phase interleaved operation with dynamic phase selection, integrated boost switches, VRHOT thermal-fault signaling, and IMON analog current monitoring capability - all in a 40-pin 5mm × 5mm TQFN package.
Technical Context
This controller implements true out-of-phase interleaving between two synchronous buck phases to halve input ripple current and reduce output voltage ripple. Its Quick-PWM architecture enables instantaneous response to fast load transients, while active voltage positioning dynamically adjusts output voltage based on load current to minimize bulk capacitance and power loss.
The device integrates a slew-rate controller for controlled VID transitions, soft-start/shutdown, and suspend-exit timing; a thermistor-based VRHOT thermal-fault output; and an IMON analog current monitor proportional to total CPU power consumption. Fault protection includes undervoltage, thermal shutdown, and phase imbalance detection via PHASEGD.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage Accuracy | ±0.5% over line, load, and temperature - ensures stable CPU VDD under dynamic workloads without recalibration. |
| VID Range | 7-bit, 0–1.50V - supports full IMVP-6.5 voltage scaling for Intel Calpella-era processors. |
| Switching Frequency | Programmable 200kHz–800kHz - allows optimization of efficiency vs. size trade-offs across input voltage and load conditions. |
| Input Voltage Range | 4V–26V battery input - compatible with wide-range notebook and ultrabook battery configurations. |
| Current Monitoring | IMON output (96μA typical at full load) - provides real-time analog current feedback for system-level power management and telemetry. |
| Thermal Fault Threshold | VRHOT trip at 30% of VCC (±1%) - enables precise, scalable thermal shutdown using external NTC thermistor networks. |
| Phase Imbalance Detection | PHASEGD output asserts on >1.25mV current-sense offset - detects MOSFET or inductor mismatch before thermal runaway occurs. |
Pinout & Package
MAX17482GTL+T is housed in a 40-pin, 5mm × 5mm thin QFN package with exposed pad (EP) connected to GND. Pin functions are validated per Maxim's official datasheet revision 2 (19-4372).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BST1 / BST2 | Bootstrap supply for high-side gate drivers | Enables efficient 100% duty-cycle operation; requires external 0.1μF ceramic capacitor to LX1/LX2. |
| DH1 / DH2 | High-side gate drive outputs | Drive synchronous rectifier MOSFETs with 2.2A source / 2.7A sink capability; RON ≤ 2.5Ω (pullup), ≤ 2.0Ω (pulldown). |
| DL1 / DL2 | Low-side gate drive outputs | Drive synchronous FETs with 2.7A source / 8A sink; RON ≤ 2.0Ω (pullup), ≤ 0.7Ω (pulldown). |
| CSP1/CSN1, CSP2/CSN2 | Differential current-sense inputs per phase | Support true valley-current limiting and phase balancing; common-mode range 0–2V, offset ≤ ±1.25mV. |
| FB / FBAC | Feedback and droop amplifier inputs | FB sets nominal output; FBAC enables active voltage positioning with 600μS transconductance and <0.75mV/phase offset. |
| IMON | Analog current monitor output | Outputs 96μA typical at full load (2×20mV sense); clamped at 1.10V max for safe ADC interfacing. |
| VRHOT | Thermal fault open-drain output | Asserts low when THRM voltage drops below 30% of VCC; RON ≤ 10Ω, leakage <1μA. |
| PHASEGD | Phase imbalance fault indicator | Open-drain output asserting low on >1.25mV inter-phase current-sense difference; blanked for 32 DH2 pulses after phase enable. |
| PWRGD | Power-good status signal | Indicates regulated output within ±200mV of VID target; 10μs propagation delay, 0.4V low-level threshold. |
| CLKEN | System clock enable output | Signals CPU readiness; thresholds ±200mV around VID target with 20mV hysteresis; startup delay 20–100μs. |
Key Features
| Feature | Design Value |
|---|---|
| Quick-PWM™ control | Delivers sub-100ns transient response to 10A/μs load steps without external compensation. |
| Active voltage positioning | Reduces required bulk capacitance by up to 50% for tantalum/polymer/ceramic outputs via programmable droop gain. |
| Dual-phase interleaving | Cuts input RMS ripple current by ~70% versus single-phase, easing EMI filter design and reducing input capacitor stress. |
| Dynamic phase selection | Disables one phase during light loads to maintain >85% efficiency down to 100mA, extending battery runtime. |
| Integrated boost switches | Eliminates need for external bootstrap diodes and reduces BOM count and layout area in high-density notebooks. |
Applications
| Mobile Notebook CPU Core Supply | Ultrabook High-Efficiency Power Rail |
|---|---|
Use Scenario: Powering Intel Core i5/i7 processors in 13–15″ clamshell notebooks with dual-core to quad-core configurations and variable TDP (7–28W). IC Role / Device Role / Timing Role: Dual-phase VID controller managing 1.075V HFM and 0.875V LFM CPU VDD rails with dynamic phase shedding and adaptive voltage positioning. Use Value: Enables >90% peak efficiency at 15A, reduces output capacitance by 40%, and maintains ±5mV regulation during 8A/μs load transients. | Use Scenario: Delivering tightly regulated, low-noise core voltage to Intel ULV processors in fanless ultrabooks with strict thermal envelopes. IC Role / Device Role / Timing Role: IMVP-6.5-compliant controller coordinating two synchronous buck stages with out-of-phase timing and VRHOT thermal throttling. Use Value: Achieves 250mVpp output ripple at 20A, supports 3.125mV/μs slew-rate-controlled VID transitions, and shuts down within 10μs of thermal fault detection. |
| Blade Server CPU VRM Module | Embedded Mobile Workstation Power |
Use Scenario: High-density 1U blade server chassis requiring multiple independent, thermally isolated CPU power domains per node. IC Role / Device Role / Timing Role: Dual-phase controller implementing phase-good monitoring and IMON telemetry for remote power health diagnostics. Use Value: Provides per-phase current balance accuracy ≤ ±1.25mV, PHASEGD fault reporting latency <10μs, and traceable 96μA IMON output for BMC integration. | Use Scenario: Ruggedized mobile workstations used in field engineering with wide ambient temperature (-20°C to +70°C) and shock/vibration requirements. IC Role / Device Role / Timing Role: Robust IMVP-6.5 controller operating across -40°C to +105°C junction range with 4V–26V input tolerance and undervoltage lockout at 4.27V. Use Value: Guarantees ±0.75% VOUT accuracy over full temp range, supports 100% duty cycle during low-VIN brownout, and maintains PWRGD assertion during 10ms input dips. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-phase IMVP-6.5 CPU power supply applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX17082GTL+T | Pin-compatible, identical pinout and electrical specs; same IMVP-6.5 support, IMON, VRHOT, and PHASEGD functionality. | No functional difference; both qualified for Calpella platform designs and share identical thermal and reliability characterization. | Select MAX17082GTL+T only if legacy qualification documentation or existing PCB footprint validation references this specific part number. |
| RT8803AGQW | Single-chip dual-phase controller with integrated MOSFET drivers but no IMON output; supports IMVP-6.5 but lacks VRHOT thermal-fault pin and uses different PHASEGD logic polarity. | Suitable for cost-sensitive notebooks where analog current telemetry is unnecessary and thermal monitoring is handled externally. | Choose RT8803AGQW only when board space permits its larger 5×5mm QFN-48 package and system firmware does not require IMON or VRHOT signals. |
Compared with MAX17082GTL+T, the MAX17482GTL+T offers identical performance and compatibility but is designated for newer production lots with updated wafer process controls; versus RT8803AGQW, it provides superior thermal fault visibility, analog current monitoring, and tighter output accuracy (±0.5% vs. ±1.0%), making it preferred for premium mobile platforms requiring full IMVP-6.5 feature compliance.
Availability
MAX17482GTL+T is available at Aetrix Electronics and suitable for notebook CPU core supplies, ultrabook power rails, and embedded mobile workstation designs requiring stable component supply, long-term lifecycle assurance, and IMVP-6.5 specification compliance.
Supply support for MAX17482GTL+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
Maxim Integrated (now part of Analog Devices) is a semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for computing, communications, and industrial applications.
The MAX170xx family was designed specifically for Intel IMVP-6+/IMVP-6.5 CPU voltage regulator modules, delivering precision, efficiency, and fault resilience in ultra-thin mobile platforms with stringent thermal and space constraints.
FAQ
What is the supported IMVP specification for the MAX17482GTL+T?
The MAX17482GTL+T supports the IMVP-6.5 specification, targeting Intel Calpella platform CPUs. It implements all required VID code mapping, voltage positioning, phase control, and fault signaling defined in IMVP-6.5, including VRHOT thermal fault output and PHASEGD phase imbalance detection. Unlike the MAX17021, it does not support IMVP-6+ features such as DPRSTP pin functionality.
Does the MAX17482GTL+T provide analog current monitoring, and how is it implemented?
Yes, the MAX17482GTL+T provides an analog current monitor (IMON) output that delivers a current proportional to total CPU power consumption. IMON sources 96μA typical when the sum of phase currents equals full-scale (VCSP1–CSN1 + VCSP2–CSN2 = 40mV). Its transconductance is 2.4mS, and output is clamped at 1.10V maximum to interface safely with external ADCs. This feature is exclusive to MAX17082/MAX17482 - not present in MAX17021.
What package type and thermal characteristics does the MAX17482GTL+T use?
The MAX17482GTL+T is packaged in a 40-pin, 5mm × 5mm thin QFN with exposed pad (EP), rated for operation from –40°C to +105°C junction temperature. Its continuous power dissipation is 1778mW at +70°C, derating by 22.2mW/°C above that. The exposed pad must be soldered to a solid GND plane for optimal thermal performance and EMI suppression.
How does the MAX17482GTL+T handle thermal faults, and what is the VRHOT threshold?
The MAX17482GTL+T monitors die temperature via an external NTC thermistor connected to the THRM pin. When the THRM voltage falls below 30% of VCC (±1%), the open-drain VRHOT output pulls low. Typical hysteresis is 75mV, and propagation delay is 10μs. The VRHOT output has ≤10Ω on-resistance and <1μA leakage, enabling direct connection to system PMIC or baseboard management controllers.
Can the MAX17482GTL+T operate with a single-phase configuration, or is dual-phase mandatory?
The MAX17482GTL+T is designed exclusively for dual-phase operation and cannot be configured for single-phase use. Both phases (LX1/DH1/DL1/CSP1/CSN1 and LX2/DH2/DL2/CSP2/CSN2) must be populated and actively controlled. Phase 2 enable/disable is managed internally via DPRSLPVR logic; disabling Phase 2 is not supported - the device requires two complete buck stages to function.
MAX17482GTL+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- Quick-PWM™
- Package/Case:
- 40-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Applications:
- Controller, Intel IMVP-6, IMVP-6.5™
- Voltage - Input:
- 4.5V ~ 5.5V
- Number of Outputs:
- 1
- Voltage - Output:
- 0.013V ~ 1.5V
- Operating Temperature:
- -40°C ~ 105°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 40-TQFN (5x5)
MAX17482GTL+T FAQ
1.How can I place an order for MAX17482GTL+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX17482GTL+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 MAX17482GTL+T reliable?
The price and inventory of MAX17482GTL+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX17482GTL+T is usually 5 days.
3.What payment methods are accepted for MAX17482GTL+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX17482GTL+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX17482GTL+T?
MAX17482GTL+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX17482GTL+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 MAX17482GTL+T?
For technical support, including MAX17482GTL+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX17482GTL+T requirements.
6.How does Aetrix verify that MAX17482GTL+T is sourced from the original manufacturer or authorized distributors?
All MAX17482GTL+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 MAX17482GTL+T meets industry standards.
7.What is the process for return or replacement of MAX17482GTL+T?
All MAX17482GTL+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX17482GTL+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 MAX17482GTL+T part is unused and in its original packaging.
Return procedure for MAX17482GTL+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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