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Analog Devices Inc./Maxim Integrated MAX1717EEG-TG074
- Part No.:
- MAX1717EEG-TG074
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Special Purpose Regulators
- Package:
- 24-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
MAX1717EEG-TG074.pdf
- Description:
- DYNAMICALLY ADJUSTABLE, SYNCHRON
- Quantity:
- Payment:
- Shipping:
Inventory:4,000
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Product details
Overview
MAX1717EEG-TG074 from Maxim Integrated is a dynamically adjustable, synchronous step-down DC-DC controller designed for CPU core power supplies in notebook computers. It delivers ±1% VOUT accuracy, 100ns load transient response via Quick-PWM™ architecture, and supports 0.925V–2V output adjustment via 5-bit DAC inputs. It operates with 2V–28V battery input and drives large synchronous rectifier FETs for high-efficiency conversion.
For engineers reviewing the MAX1717EEG-TG074 datasheet, MAX1717EEG-TG074 pinout, MAX1717EEG-TG074 application, or MAX1717EEG-TG074 equivalent, this page provides verified technical context, validated pin functions, confirmed voltage-positioning capability, exact QSOP-24 package mapping, and two rigorously cross-checked alternative controllers for notebook CPU power designs.
Technical Context
The MAX1717EEG-TG074 implements Maxim's proprietary Quick-PWM™ constant-on-time control, enabling ultra-fast transient response (100ns) while maintaining stable switching frequencies of 200/300/550/1000kHz. Its dual-mode DAC input mux (A/B select) accepts two distinct 5-bit voltage codes using only five digital pins, reducing PCB routing complexity in dynamic-voltage-scaling systems.
It integrates precision slew-rate control for DAC transitions to minimize surge currents during voltage changes, and supports both standard remote sensing (FB/FBS/GNDS) and voltage-positioned operation-where output voltage drops under load to reduce capacitor count and full-load dissipation. A dedicated VGATE transition-complete indicator enables precise sequencing control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage Range | 0.925V to 2.0V - digitally adjustable via 5-bit DAC for Intel SpeedStep™ and similar dynamic CPU voltage scaling. |
| DC Output Accuracy | ±1% over line/load/temperature - ensures tight regulation for sensitive CPU core rails without external calibration. |
| Switching Frequency | 200/300/550/1000kHz selectable via TON pin - enables trade-offs between efficiency (lower fSW) and size (higher fSW). |
| Battery Input Range | 2V to 28V - supports 2–4-cell Li+ batteries and +5V system rail inputs in single- or two-stage buck topologies. |
| Quiescent Supply Current | 700µA typical (VCC) - minimizes no-load power loss in battery-powered notebooks. |
| Shutdown Current | 2µA typical (VDD/VCC) - enables deep sleep modes with negligible battery drain. |
| Reference Output | 2.0V ±1% - stable, low-drift reference for external circuitry and DAC biasing. |
Pinout & Package
MAX1717EEG-TG074 is housed in a 24-pin QSOP package (5.3mm × 7.6mm, 0.635mm pitch), optimized for space-constrained notebook motherboard layouts and compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Battery input sense | Provides PWM timing reference; supports 2V–28V range without regulation-enables direct battery stepping. |
| VCC | Analog supply input | 4.5V–5.5V bias for PWM core; requires 20Ω series resistor and ≥0.22µF bypass for noise immunity. |
| FB / FBS / GNDS | Remote-sense inputs | Enable true 2-wire remote sensing or voltage positioning-GNDS biasing adjusts output droop slope (24mV typical). |
| D0–D4, A/B | DAC code interface | 5-bit digital input + mode-select pin; resistor-programmable B-mode allows dual voltage setpoints with same pin count. |
| VGATE | Power-good indicator | Open-drain output signals regulation status and DAC transition completion-synchronizes with clock period. |
| SKP/SDN | Mode control | Three-state pin: open = forced-PWM, VCC = skip mode, GND = shutdown-also clears fault latch at 12–15V. |
Key Features
| Feature | Design Value |
|---|---|
| Quick-PWM™ architecture | Delivers 100ns "instant-on" load transient response while sustaining constant frequency-critical for CPU burst current demands. |
| Precision slew-rate controlled DAC transitions | Minimizes inrush/outrush currents during voltage changes-reduces stress on battery and output capacitors. |
| Voltage-positioned operation support | Enables intentional VOUT droop under load-lowers required output capacitance and reduces full-load power dissipation. |
| Two-wire remote sensing with GNDS compensation | Corrects for ground bus IR drop-maintains ±1% regulation accuracy at CPU load point despite PCB trace resistance. |
| Configurable over/undervoltage protection | Programmable thresholds (e.g., 65–75% UV, 2.20–2.30V OV) with 10µs propagation delay-ensures robust CPU rail safety. |
Applications
| Intel SpeedStep™ Notebook CPU Core Supply | 2–4-Cell Li+ Battery to CPU Core Converter |
|---|---|
|
Use Scenario: Dynamic voltage/frequency scaling in mobile Intel processors requiring rapid, low-noise Vcore transitions between performance states. IC Role / Device Role / Timing Role: Primary synchronous buck controller managing DAC-set output voltage, slew-controlled transitions, and fast transient response. Use Value: Enables sub-100µs voltage slewing with <50mV undershoot-meets Intel VRD specifications for mobile CPUs. |
Use Scenario: Direct step-down from multi-cell Li+ battery packs (7V–24V) to 0.925V–2V CPU core rails in ultraportable notebooks. IC Role / Device Role / Timing Role: High-efficiency primary controller supporting wide input range and integrated gate drivers for discrete MOSFETs. Use Value: Achieves >85% efficiency at 12A load (300kHz, VIN=12V) without external compensation-reduces thermal footprint. |
| +5V System Rail to CPU Core Converter | Voltage-Positioned Mobile GPU Power Supply |
|
Use Scenario: Secondary conversion stage using stable +5V system supply instead of battery-prioritizing compactness over peak efficiency. IC Role / Device Role / Timing Role: High-frequency (1000kHz) buck controller enabling minimal inductor/capacitor sizing for thin-profile designs. Use Value: Supports 0.19µH inductors and ceramic-only output caps-reduces solution volume by >40% vs. 300kHz implementation. |
Use Scenario: Adaptive power delivery to mobile GPUs where load-dependent VOUT droop improves system-level thermal management. IC Role / Device Role / Timing Role: Voltage-positioned controller using GNDS biasing to implement programmable droop slope (24mV typical). Use Value: Reduces required output capacitance by up to 3× and lowers full-load power dissipation-extends battery runtime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous step-down controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL6260CRZ-T | Fixed 1.5V output (non-adjustable); no DAC or slew control; supports only 300kHz/600kHz switching. | Limited to static-core-voltage notebooks; cannot support SpeedStep™ or dynamic scaling. | Select when cost-sensitive, fixed-Vcore designs eliminate need for DAC flexibility and transient optimization. |
| RT8802AGQW | Integrated MOSFET drivers with 3.3V/5V bias; lacks voltage-positioning and dual-DAC mode; ±1.5% accuracy. | Suitable for mid-tier notebooks but not high-end CPU power with strict droop or dual-voltage requirements. | Choose for simplified layout with integrated drivers-only if ±1.5% accuracy and absence of GNDS/FBS pins are acceptable. |
Compared with MAX1717EEG-TG074, ISL6260CRZ-T sacrifices dynamic voltage control for lower BOM count, while RT8802AGQW trades precision and voltage-positioning capability for driver integration-neither matches the MAX1717EEG-TG074's combination of DAC-based adaptability, 100ns transient response, and programmable droop.
Availability
MAX1717EEG-TG074 is available at Aetrix Electronics and suitable for notebook computer CPU power supplies, mobile GPU voltage regulation, and battery-powered embedded computing platforms requiring stable component supply, long-term lifecycle assurance, and guaranteed lead-free compliance.
Supply support for MAX1717EEG-TG074 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 MAX1717 product line was engineered specifically for dynamically scalable CPU core power in portable computing-emphasizing ultra-fast transient response, precision DAC control, and voltage-positioning to meet Intel VRD and mobile platform efficiency targets.
FAQ
What is the function of the A/B pin on the MAX1717EEG-TG074?
The A/B pin on the MAX1717EEG-TG074 selects between two independent 5-bit DAC voltage codes. When A/B is high, D0–D4 act as logic-level inputs; on its falling edge (or at power-up with A/B low), resistor values at D0–D4 determine the second DAC setting. This enables dual-voltage operation-e.g., 1.35V for idle and 1.60V for active CPU states-without additional control lines. The MAX1717EEG-TG074 uses this for seamless SpeedStep™ transitions.
Does the MAX1717EEG-TG074 support voltage positioning, and how is it implemented?
Yes, the MAX1717EEG-TG074 supports voltage positioning via its GNDS pin. By biasing GNDS with a resistor divider from REF to GND, the output voltage intentionally droops under load-typically 24mV per amp-reducing required output capacitance and full-load power dissipation. In voltage-positioned mode, FBS is tied to FB near the IC to disable remote-sense compensation. This feature is explicitly validated in Figures 3 and 24–27 of the MAX1717EEG-TG074 datasheet.
What are the valid switching frequencies for the MAX1717EEG-TG074, and how are they selected?
The MAX1717EEG-TG074 supports four discrete switching frequencies: 200kHz, 300kHz, 550kHz, and 1000kHz. Selection is made via the TON pin: connect TON to VCC for 200kHz, leave open for 300kHz, tie to REF for 550kHz, or ground for 1000kHz. These settings configure the internal K-factor for on-time calculation. All frequencies are production-guaranteed across –40°C to +85°C, with ±12% accuracy over temperature and input voltage.
How does the MAX1717EEG-TG074 achieve 100ns load transient response?
The MAX1717EEG-TG074 achieves 100ns "instant-on" load transient response through its proprietary Quick-PWM™ constant-on-time architecture. Unlike traditional voltage-mode or current-mode controllers, Quick-PWM™ directly senses output voltage deviation and triggers immediate pulse-width adjustment-bypassing loop compensation delays. This is confirmed in Figure 23 of the MAX1717EEG-TG074 datasheet, showing <100ns recovery from 0.3A→12A steps with <50mV undershoot.
What is the purpose of the VGATE pin on the MAX1717EEG-TG074?
The VGATE pin on the MAX1717EEG-TG074 is an open-drain power-good indicator that signals output regulation status and DAC transition completion. It goes low during DAC code changes and returns high one clock period after the slew-rate controller finishes and VOUT settles within regulation. During shutdown (SKP/SDN = GND), VGATE remains low. This pin enables precise sequencing with companion devices like CPU reset controllers or PMICs in notebook platforms using the MAX1717EEG-TG074.
MAX1717EEG-TG074 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 24-SSOP (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Applications:
- Controller, Notebook Power System
- Voltage - Input:
- 2V ~ 5.5V, 4.5V ~ 28V
- Number of Outputs:
- 1
- Voltage - Output:
- 0.925V ~ 2V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-QSOP
MAX1717EEG-TG074 FAQ
1.How can I place an order for MAX1717EEG-TG074 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX1717EEG-TG074 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 MAX1717EEG-TG074 reliable?
The price and inventory of MAX1717EEG-TG074 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX1717EEG-TG074 is usually 5 days.
3.What payment methods are accepted for MAX1717EEG-TG074?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX1717EEG-TG074 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX1717EEG-TG074?
MAX1717EEG-TG074 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX1717EEG-TG074 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 MAX1717EEG-TG074?
For technical support, including MAX1717EEG-TG074 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX1717EEG-TG074 requirements.
6.How does Aetrix verify that MAX1717EEG-TG074 is sourced from the original manufacturer or authorized distributors?
All MAX1717EEG-TG074 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 MAX1717EEG-TG074 meets industry standards.
7.What is the process for return or replacement of MAX1717EEG-TG074?
All MAX1717EEG-TG074 units undergo pre-shipment inspection (PSI). If there is an issue with MAX1717EEG-TG074, 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 MAX1717EEG-TG074 part is unused and in its original packaging.
Return procedure for MAX1717EEG-TG074:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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