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Renesas ISL6217ACVZA-T
- Part No.:
- ISL6217ACVZA-T
- Manufacturer:
- Renesas
- Category:
- Special Purpose Regulators
- Package:
- 38-TFSOP (0.173", 4.40mm Width)
- Datasheet:
-
ISL6217ACVZA-T.pdf
- Description:
- IC REG CTRLR INTEL 1OUT 38TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,602
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Product details
Overview
ISL6217ACVZA-T from Renesas (formerly Intersil) is a precision two-phase buck PWM controller IC with integrated half-bridge gate drivers, designed specifically for Intel Pentium IV mobile microprocessor CORE voltage regulation under IMVP-IV™ and IMVP-IV+™ specifications. It delivers 0.700V–1.708V output via 6-bit VID DAC, supports 250kHz–1MHz per-phase switching, enables diode emulation in deep/deeper sleep modes, and features lossless rDS(ON) current sensing for notebook power systems.
For engineers reviewing the ISL6217ACVZA-T datasheet, ISL6217ACVZA-T pinout, ISL6217ACVZA-T application, or ISL6217ACVZA-T equivalent, this page provides verified technical context, confirmed pin functions, real-world timing and protection thresholds, IMVP-IV-compliant mode transitions, and validated alternative options for mobile CPU core regulator design.
Technical Context
The ISL6217ACVZA-T implements average current mode control combined with input voltage feed-forward to achieve fast dynamic response during CPU load transients. Its proprietary "Droop" architecture uses a programmable 27–30µA current source and external resistor to generate load-line compensation aligned with IMVP-IV™ requirements.
It supports three operational modes-Active (two-phase PWM), Deep Sleep (single-phase diode emulation, regulated to DSV), and Deeper Sleep (single-phase diode emulation, regulated to DRSV)-each with distinct VID capture behavior, PGOOD masking, and slew-rate control via SOFT pin current sourcing (30µA + 100µA).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage Range | 0.700V to 1.708V in 16mV steps; matches IMVP-IV™/IMVP-IV+™ VID code table for precise mobile CPU core regulation. |
| Switching Frequency | 250kHz to 1MHz per phase; set by FSET-to-ground resistor; enables optimization of efficiency vs. size in notebook VRMs. |
| System Accuracy | ±0.8% over temperature; ensures stable CORE voltage delivery across -10°C to 85°C ambient range. |
| Overvoltage Threshold | 112% of VID/DSV/DRSV setpoint; latches off converter and holds PGOOD low to protect CPU during fault. |
| Undervoltage Threshold | 84% of VID/DSV/DRSV setpoint; triggers shutdown if sensed VSEN drops below regulation window. |
| PGOOD Activation Window | Held low until CORE voltage reaches within ±12% of boot voltage during soft-start; masked during VID/mode changes. |
| Gate Drive Capability | UGATE/LGATE: 2A source / 4A sink; supports high-performance MOSFETs with minimal external drive circuitry. |
Pinout & Package
ISL6217ACVZA-T is housed in a 38-lead Pb-free TSSOP (M38.173) package with exposed thermal pad; RoHS compliant and compatible with SnPb and Pb-free reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Primary supply input | +5V ±5% main IC power; POR threshold 4.35–4.5V rising, 4.05–4.4V falling. |
| DACOUT | DAC output reference | Provides VID-scaled analog voltage used to program DSV via external divider (98.8% of VID). |
| PWRCH | Channel count select | Logic HIGH enables dual-phase operation; LOW forces single-phase for light-load efficiency. |
| EN | Enable control | Directly tied to VR_ON; >2.0V enables soft-start; <1.0V resets latched faults (except overvoltage). |
| VID0–VID5 | Digital voltage ID inputs | 6-bit parallel interface accepting CMOS logic levels; defines 64 discrete CORE voltage setpoints. |
| PGOOD | Power-good status | Open-drain output pulled low on OVP/UVP/OCP; also serves as input during startup to synchronize with Vccp/Vcc_mch. |
| ISEN1/ISEN2 | Current sense inputs | Accept lossless rDS(ON) voltage drop from high-side MOSFETs; full-scale input = 32µA. |
| UG1/UG2, LG1/LG2 | Gate drive outputs | Drive high-side and low-side MOSFETs per phase; UGx sourced/sunk at 2A/2A, LGx at 2A/4A. |
| SOFT | Slew rate programming | Capacitor-connected node controlling VID/boot/DSV/DRSV transition rates via 30µA + 100µA current sources. |
| OCSET | Overcurrent threshold | 1.75V reference pin; resistor to ground sets IOCSET (10–25µA) defining overcurrent trip point. |
Key Features
| Feature | Design Value |
|---|---|
| IMVP-IV™/IMVP-IV+™ compliance | Fully implements mobile voltage positioning, droop compensation, and mode-specific VID capture per Intel specification. |
| Lossless current sensing | Uses MOSFET rDS(ON) instead of discrete sense resistors-reduces board area, BOM cost, and conduction losses. |
| Diode emulation in sleep modes | Disables low-side gate drive and controls high-side timing to emulate diode conduction-improves light-load efficiency. |
| Programmable droop and slew rate | External RDROOP resistor and SOFT capacitor allow precise tuning of load-line slope and voltage transition timing. |
| Integrated bootstrap diodes | On-chip diodes eliminate need for external bootstrap diodes-simplifies layout and improves reliability. |
Applications
| Mobile CPU Core Regulation | Notebook VRM Power Stage Control |
|---|---|
Use Scenario: Regulating CORE voltage for Intel Pentium IV mobile processors in ultraportable notebooks with strict IMVP-IV™ timing and droop requirements. IC Role / Device Role / Timing Role: Primary multi-phase PWM controller managing two synchronous buck channels, VID decoding, mode transitions, and PGOOD coordination with Vccp/Vcc_mch rails. Use Value: Enables 0.8% system accuracy and sub-12ms VID capture while meeting IMVP-IV+™ 10mV/µs slew rate demands during active-to-sleep transitions. |
Use Scenario: Implementing compact, high-efficiency VRM solutions where PCB space and thermal management are constrained. IC Role / Device Role / Timing Role: Dual-phase controller with integrated gate drivers and lossless sensing-reducing external component count and enabling 180° interleaved switching for lower input/output ripple. Use Value: Eliminates four external gate drivers and two sense resistors, cutting solution size by ~35% versus discrete driver + controller designs. |
| Deep/Deeper Sleep Mode Management | Protected Mobile Power Delivery |
Use Scenario: Dynamically scaling CORE voltage during OS-managed C-states (C2/C3/C4) in Windows-based notebooks. IC Role / Device Role / Timing Role: Mode sequencer responding to STP_CPU# (DSEN#) and DPRSLPVR (DRSEN) logic signals to switch between Active, Deep Sleep, and Deeper Sleep states. Use Value: Achieves >30% reduction in quiescent power by enabling single-phase diode emulation and reducing CORE voltage to 98.8% (DSV) or user-defined DRSV level. |
Use Scenario: Safeguarding Intel mobile CPUs against overvoltage, undervoltage, and overcurrent events during transient load steps or thermal stress. IC Role / Device Role / Timing Role: Fault monitor with 32-cycle overcurrent shutdown, 112%/84% OVP/UVP thresholds referenced to VID/DSV/DRSV, and PGOOD blanking during mode changes. Use Value: Prevents CPU damage by latching off within 30ns of overvoltage detection and holding PGOOD low until full reset sequence completes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multi-phase buck controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL6227CRZ-T | Dual-output (Vccp + Vcc_mch) controller only; no VID interface, no droop, no deep-sleep logic; lacks PWRCH and DSEN#/DRSEN pins. | Designed for auxiliary rail regulation-not suitable for CORE voltage control or IMVP-IV™ compliance. | Select only when regulating non-CORE rails; cannot replace ISL6217ACVZA-T in CPU core applications. |
| RT8802AGQW | Single-phase controller with IMVP-6.5 support; no integrated gate drivers; requires external high-side/low-side drivers; no DSV/DRSV pins. | Targets newer Intel platforms (Core i-series); lacks native IMVP-IV™ mode sequencing and droop architecture. | Use for post-2008 platforms requiring higher frequency (up to 1.5MHz) but not for legacy Pentium IV mobile designs. |
Compared with ISL6227CRZ-T and RT8802AGQW, the ISL6217ACVZA-T uniquely integrates dual-phase gate drivers, IMVP-IV™-specific mode logic, programmable droop, and VID-based voltage positioning-making it irreplaceable for Pentium IV mobile CPU core regulation without redesigning the entire VRM topology.
Availability
ISL6217ACVZA-T is available at Aetrix Electronics and suitable for notebook motherboard design, mobile CPU power delivery, and IMVP-IV™-compliant VRM development requiring stable component supply and long-term lifecycle support.
Supply support for ISL6217ACVZA-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
Renesas Electronics Corporation acquired Intersil in 2017 and maintains full technical and supply chain continuity for legacy Intersil power management ICs including the ISL6217A family.
The ISL6217A product line was engineered exclusively for Intel mobile CPU core voltage regulation under IMVP-IV™/IMVP-IV+™ specifications-emphasizing precision droop control, multi-phase efficiency, and seamless sleep-mode transitions.
FAQ
What is the primary function of the ISL6217ACVZA-T in a notebook power system?
The ISL6217ACVZA-T serves as the core voltage regulator controller for Intel Pentium IV mobile microprocessors. It manages two-phase synchronous buck conversion, decodes 6-bit VID commands, implements IMVP-IV™-compliant droop compensation, and sequences between Active, Deep Sleep, and Deeper Sleep modes using dedicated logic inputs. The ISL6217ACVZA-T integrates gate drivers and lossless current sensing to minimize external components while maintaining ±0.8% system accuracy across temperature.
How does the ISL6217ACVZA-T implement diode emulation, and in which modes is it active?
The ISL6217ACVZA-T activates diode emulation exclusively in Deep Sleep and Deeper Sleep modes-triggered by logic-low DSEN# and logic-high DRSEN, respectively. During these states, it disables low-side gate drive and modulates high-side timing to mimic freewheeling diode conduction, reducing switching losses at light loads. This feature is not available in Active mode, where full synchronous rectification is maintained. The ISL6217ACVZA-T's diode emulation directly improves light-load efficiency without requiring external circuitry.
What are the exact overvoltage and undervoltage protection thresholds for the ISL6217ACVZA-T?
The ISL6217ACVZA-T monitors output voltage relative to the active setpoint (VID in Active mode, DSV in Deep Sleep, DRSV in Deeper Sleep). Its overvoltage protection triggers at exactly 112% of that setpoint, while undervoltage protection activates at 84% of the same setpoint. Both thresholds are fixed ratios-not adjustable-and cause immediate latching shutdown with PGOOD held low. These values are confirmed in the Electrical Specifications table on page 4 of FN9107 Rev 3.00 and apply identically across all operational modes.
Can the ISL6217ACVZA-T operate in single-phase mode, and how is it enabled?
Yes, the ISL6217ACVZA-T supports single-phase operation via the PWRCH pin: a logic LOW forces single-channel PWM in Active, Deep Sleep, or Deeper Sleep modes. In typical notebook implementations, PWRCH is tied to DSEN# so that single-phase operation engages automatically during Deep and Deeper Sleep-reducing gate drive losses and improving light-load efficiency. The ISL6217ACVZA-T maintains full regulation accuracy and protection functionality in both one- and two-phase configurations.
What package type and lead finish does the ISL6217ACVZA-T use?
The ISL6217ACVZA-T is supplied in a 38-lead TSSOP package (package drawing M38.173) with Pb-free (RoHS-compliant) matte tin plating. It features an exposed thermal pad for enhanced heat dissipation and is rated for reflow peak temperatures meeting IPC/JEDEC J-STD-020 requirements for Pb-free processes. The "-T" suffix denotes tape-and-reel packaging, and the "Z" indicates Pb-free construction-fully documented in the Ordering Information table on page 2 of FN9107 Rev 3.00.
ISL6217ACVZA-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 38-TFSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Applications:
- Controller, Intel Pentium® IMVP-IV, IMVP+
- Voltage - Input:
- 5.5V ~ 25V
- Number of Outputs:
- 1
- Voltage - Output:
- -
- Operating Temperature:
- -10°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 38-TSSOP
ISL6217ACVZA-T FAQ
1.How can I place an order for ISL6217ACVZA-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL6217ACVZA-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 ISL6217ACVZA-T reliable?
The price and inventory of ISL6217ACVZA-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL6217ACVZA-T is usually 5 days.
3.What payment methods are accepted for ISL6217ACVZA-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL6217ACVZA-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL6217ACVZA-T?
ISL6217ACVZA-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL6217ACVZA-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 ISL6217ACVZA-T?
For technical support, including ISL6217ACVZA-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL6217ACVZA-T requirements.
6.How does Aetrix verify that ISL6217ACVZA-T is sourced from the original manufacturer or authorized distributors?
All ISL6217ACVZA-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 ISL6217ACVZA-T meets industry standards.
7.What is the process for return or replacement of ISL6217ACVZA-T?
All ISL6217ACVZA-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL6217ACVZA-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 ISL6217ACVZA-T part is unused and in its original packaging.
Return procedure for ISL6217ACVZA-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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