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Renesas ISL6218CVZ
- Part No.:
- ISL6218CVZ
- Manufacturer:
- Renesas
- Category:
- Power Management - Specialized
- Package:
- 38-TFSOP (0.173", 4.40mm Width)
- Datasheet:
-
ISL6218CVZ.pdf
- Description:
- IC CTRLR INTEL PENT M 38-TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,817
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Product details
Overview
ISL6218CVZ from Renesas (formerly Intersil) is a precision single-phase buck PWM controller with integrated half-bridge gate driver, designed specifically for Intel Pentium-M mobile microprocessor CORE voltage regulation under IMVP-IV™ and IMVP-IV+™ specifications. It delivers 0.700V–1.708V output in 16mV VID steps, supports 250kHz–500kHz programmable switching frequency, and implements loss-less MOSFET rDS(ON) current sensing for notebook power systems.
For engineers reviewing the ISL6218CVZ datasheet, ISL6218CVZ pinout, ISL6218CVZ application, or ISL6218CVZ equivalent, this page provides verified technical context, confirmed pin functions, IMVP-IV-compliant voltage positioning behavior, droop compensation design meaning, and validated alternative options for mobile CPU core regulator replacement.
Technical Context
The ISL6218CVZ integrates a 6-bit DAC for VID decoding, average current-mode control with input voltage feed-forward, and proprietary droop compensation architecture to meet Intel IMVP-IV static/dynamic regulation requirements. Its internal gate drivers deliver 2A high-side source/sink and 4A low-side sink capability, supporting synchronous buck operation with discontinuous mode activation in Deep/Deeper Sleep.
It features dual-mode logic interface (DSEN/DRSEN) for seamless transition between Active, Deep Sleep (98.8% VID), and Deeper Sleep (programmable DRSV) states, with PGOOD masking during VID changes and 3ms–12ms power-good delay after VCCP/VCC_MCH regulation. Overvoltage (112% VID), undervoltage (84% VID), and 32-cycle overcurrent shutdown provide full microprocessor protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage Range | 0.700V–1.708V in 16mV steps; enables precise IMVP-IV VID compliance for Pentium-M CORE regulation. |
| Switching Frequency | 250kHz–500kHz user-programmable via FSET resistor; balances efficiency, EMI, and component size in notebook designs. |
| System Accuracy | ±0.8% over temperature; ensures stable CORE voltage delivery across industrial ambient range (−10°C to +85°C). |
| Current Sensing | Loss-less rDS(ON) sensing; eliminates external sense resistor, reducing BOM cost and PCB area while maintaining accuracy. |
| Protection Thresholds | OVP = 112% VID, UVP = 84% VID, 32-cycle OCP; latches off converter and holds PGOOD low to safeguard CPU and power stage. |
| Gate Drive Capability | UGATE: 2A source/sink; LGATE: 4A sink / 2A source; drives modern low-Qg MOSFETs without external buffers in single-phase topology. |
| Thermal Resistance | θJA = 72°C/W (TSSOP); enables reliable operation up to +125°C junction temperature in compact laptop VRMs. |
Pinout & Package
ISL6218CVZ is packaged in a Pb-free 38-lead TSSOP (M38.173), thermally rated for −10°C to +85°C ambient operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | +5V supply input | Power-on reset threshold (4.39–4.5V rising) enables IC startup; powers all internal circuitry including gate drivers. |
| EN | Enable input (VR_ON) | Logic-high (>2.0V) initiates soft-start; toggling below 1.0V resets latched fault conditions (except overvoltage). |
| VID0–VID5 | Digital voltage identification inputs | 6-bit parallel interface sets DAC output (0.700–1.708V); no internal pull-up/down; compatible with 1.0/3.3/5.0V CMOS logic. |
| PGOOD | Open-drain status output / input | Indicates CORE regulation status post-startup; acts as input during boot to synchronize with VCCP/VCC_MCH regulators. |
| UG / LG | High-side / low-side gate drive outputs | Direct-drive outputs for synchronous buck MOSFETs; integrated bootstrap diode supports high-side N-channel FETs. |
| VSEN | Remote voltage sense input | Compensates for IR drop across PCB traces; connects directly to CPU CORE VIN pad for accurate closed-loop regulation. |
| ISEN | Current sense input | Accepts scaled current signal from low-side MOSFET rDS(ON) or discrete sense resistor; enables loss-less or precision sensing. |
| FSET | Frequency programming input | Resistor-to-ground sets switching frequency (250–500kHz); enables optimization for efficiency vs. transient response. |
| OCSET | Overcurrent threshold setting | 1.75V reference pin; external resistor sets IOCSET (10–25µA) to define 150–200% overcurrent trip point. |
| SOFT | Soft-start and slew rate control | Capacitor-to-ground sets voltage ramp rate during boot, VID transitions, and sleep mode entry/exit. |
Key Features
| Feature | Design Value |
|---|---|
| IMVP-IV™ Compliance | Fully implements Intel mobile VID specification including droop compensation, PSI-compatible discontinuous mode, and deep-sleep voltage scaling. |
| Integrated Gate Drivers | Eliminates need for external high-current drivers; UG/LG outputs support direct connection to MOSFET gates with built-in bootstrap diode. |
| Programmable Droop | Load-line regulation achieved via EA+ pin current source (12–16µA) and external RDROOP; maintains CPU VOUT vs. IOUT slope per IMVP-IV. |
| Discontinuous Mode (PSI) | Automatically disables low-side FET conduction during light loads in Deep/Deeper Sleep; improves light-load efficiency without external control signals. |
| Multi-Mode Logic Interface | DSEN/DRSEN pins accept STP_CPU/DPRSLPVR signals to select Active, Deep Sleep (DSV), or Deeper Sleep (DRSV) operating points with seamless transitions. |
| Pb-Free RoHS Compliance | Meets IPC/JEDEC J-STD-020 reflow standards; matte tin termination compatible with both SnPb and lead-free soldering processes. |
Applications
| Notebook CPU Core Regulator | Intel Pentium-M VRM |
|---|---|
Use Scenario: Power delivery to Intel Pentium-M microprocessor in ultra-thin notebook platforms requiring dynamic voltage scaling and aggressive power management. IC Role / Device Role / Timing Role: Primary CORE voltage controller implementing IMVP-IV-compliant voltage positioning, droop compensation, and multi-state sleep mode sequencing. Use Value: Enables 0.700–1.708V output with ±0.8% system accuracy, 250–500kHz frequency agility, and loss-less current sensing to reduce thermal load and board area. |
Use Scenario: Single-phase synchronous buck regulator for VCC_CORE rail in Intel chipset-based mobile reference designs (e.g., 915GM/PM). IC Role / Device Role / Timing Role: Precision PWM controller coordinating with VCCP/VCC_MCH supplies via PGOOD handshake and VR_ON enable signaling. Use Value: Provides 3ms–12ms PGOOD delay, VID change masking, and 112%/84% OVP/UVP thresholds to ensure safe CPU power sequencing and fault containment. |
| Mobile Platform VRM | IMVP-IV Compliant Notebook VRM |
Use Scenario: Compact, high-efficiency voltage regulator module for OEM laptop SKUs targeting battery life extension and thermal envelope reduction. IC Role / Device Role / Timing Role: Integrated controller with internal gate drivers, eliminating external driver ICs and reducing component count in space-constrained layouts. Use Value: Delivers 4A low-side sink capability and 2A high-side drive to support latest low-RDS(ON) MOSFETs, enabling >90% peak efficiency at 20A load. |
Use Scenario: Reference design implementation for Intel IMVP-IV certification testing in notebook validation labs. IC Role / Device Role / Timing Role: IMVP-IV-compliant controller providing programmable STV/DSV/DRSV voltages, discontinuous mode for PSI compliance, and precise VID step resolution (16mV). Use Value: Ensures pass/fail compliance with Intel's dynamic voltage positioning, load-line regulation, and sleep-state transition timing requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck PWM controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL6228CRZ | 40-lead QFN package; identical IMVP-IV functionality but higher thermal performance (θJA = 32°C/W) and integrated VCCP/VCC_MCH monitoring. | Targeted for higher-power notebooks requiring dual-rail coordination and improved thermal headroom; not pin-compatible with ISL6218CVZ TSSOP. | Select ISL6228CRZ when upgrading to QFN layout, needing lower thermal resistance, or requiring integrated auxiliary rail supervision. |
| RT8802AGQW | Supports IMVP-6/7; adds digital interface (SVID), adaptive voltage positioning, and enhanced light-load efficiency modes beyond IMVP-IV scope. | Designed for newer Intel Core i-series CPUs; lacks native DSEN/DRSEN logic interface and IMVP-IV-specific VID table mapping. | Choose RT8802AGQW only for platform migration to post-Pentium-M architectures; not a drop-in replacement for ISL6218CVZ in legacy IMVP-IV systems. |
Compared with ISL6228CRZ and RT8802AGQW, the ISL6218CVZ offers optimized cost, footprint, and IMVP-IV feature fidelity for Pentium-M platforms-whereas ISL6228CRZ improves thermal handling in QFN form, and RT8802AGQW extends functionality to newer CPU generations at the expense of legacy compatibility.
Availability
ISL6218CVZ is available at Aetrix Electronics and suitable for notebook CPU core regulation, Intel Pentium-M VRM designs, and IMVP-IV-compliant mobile platform power systems requiring stable component supply across extended production lifecycles.
Supply support for ISL6218CVZ 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 acquired Intersil in 2017 and maintains full support for legacy Intersil analog power products, including long-term manufacturing and documentation access.
The ISL6218CVZ belongs to Intersil's IMVP-IV-compliant mobile voltage regulator controller family, engineered specifically for precision CORE voltage positioning, dynamic sleep-state management, and loss-less current sensing in Intel-based notebook platforms.
FAQ
What is the operating temperature range for the ISL6218CVZ?
The ISL6218CVZ is specified for −10°C to +85°C ambient temperature operation, with a maximum junction temperature of +125°C. Its thermal resistance (θJA = 72°C/W) in the 38-lead TSSOP package ensures reliable performance in thermally constrained notebook VRM environments. This range aligns with Intel mobile platform environmental requirements and is validated across the full electrical specification set in the FN9101 datasheet.
Does the ISL6218CVZ support loss-less current sensing?
Yes, the ISL6218CVZ supports loss-less current sensing using the low-side MOSFET's rDS(ON) as the current sense element, eliminating the need for an external sense resistor. The ISEN pin accepts the scaled voltage drop across the MOSFET, enabling high-efficiency, low-component-count designs. A discrete precision current sense resistor remains optional for applications demanding higher current measurement accuracy.
How does the ISL6218CVZ implement IMVP-IV-compliant droop compensation?
The ISL6218CVZ implements droop compensation via a dedicated current source (12–16µA) connected to the EA+ pin, which generates a voltage drop across an external RDROOP resistor. This reduces the error amplifier reference in proportion to load current, achieving the required load-line slope per IMVP-IV. The SOFT pin capacitor and STV/DSV/DRSV resistive dividers further refine startup and sleep-mode voltage setpoints.
What are the PGOOD timing characteristics of the ISL6218CVZ?
The ISL6218CVZ holds the PGOOD pin low for 3ms to 12ms after VCCP and VCC_MCH regulators reach regulation, then asserts PGOOD high to signal CORE readiness. During VID code changes or mode transitions (e.g., Active → Deep Sleep), PGOOD is masked to prevent false system resets. This behavior is hardwired in silicon and requires no external configuration.
Can the ISL6218CVZ be used in new designs today?
Yes, the ISL6218CVZ remains available through Aetrix Electronics for legacy support, repair, and continuity in existing Intel Pentium-M platform designs. While newer controllers (e.g., RT8802A) support IMVP-6/7, the ISL6218CVZ is the validated, production-proven solution for IMVP-IV compliance-especially where exact VID table mapping, droop behavior, and DSEN/DRSEN interface timing are critical.
ISL6218CVZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 38-TFSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Applications:
- Processor
- Current - Supply:
- 1.4mA
- Voltage - Supply:
- 4.75V ~ 5.25V
- Operating Temperature:
- -10°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 38-TSSOP
ISL6218CVZ FAQ
1.How can I place an order for ISL6218CVZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL6218CVZ 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 ISL6218CVZ reliable?
The price and inventory of ISL6218CVZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL6218CVZ is usually 5 days.
3.What payment methods are accepted for ISL6218CVZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL6218CVZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL6218CVZ?
ISL6218CVZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL6218CVZ 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 ISL6218CVZ?
For technical support, including ISL6218CVZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL6218CVZ requirements.
6.How does Aetrix verify that ISL6218CVZ is sourced from the original manufacturer or authorized distributors?
All ISL6218CVZ 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 ISL6218CVZ meets industry standards.
7.What is the process for return or replacement of ISL6218CVZ?
All ISL6218CVZ units undergo pre-shipment inspection (PSI). If there is an issue with ISL6218CVZ, 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 ISL6218CVZ part is unused and in its original packaging.
Return procedure for ISL6218CVZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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