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Renesas ISL6218CV
- Part No.:
- ISL6218CV
- Manufacturer:
- Renesas
- Category:
- Power Management - Specialized
- Package:
- 38-TFSOP (0.173", 4.40mm Width)
- Datasheet:
-
ISL6218CV.pdf
- Description:
- IC CTRLR INTEL PENT M 38-TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,392
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Product details
Overview
ISL6218CV from Renesas Electronics (formerly Intersil) is a precision single-phase buck PWM controller with integrated half-bridge gate driver, designed specifically for Intel Pentium-M mobile processor 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 ISL6218CV datasheet, ISL6218CV pinout, ISL6218CV application, or ISL6218CV equivalent, this page provides verified technical context, confirmed pin functions for the 38-lead TSSOP package, IMVP-IV-compliant droop and sleep-mode behavior, overvoltage/undervoltage protection thresholds (112%/84% of VID), and real-world design meaning behind its average current mode control and feed-forward architecture.
Technical Context
The ISL6218CV implements average current mode control combined with input voltage feed-forward to achieve fast transient response in mobile CPU core regulation. Its internal 6-bit DAC interprets VID0–VID5 inputs to set the target CORE voltage, while dedicated logic pins (DSEN, DRSEN) directly interface with STP_CPU and DPRSLPVR signals to enter Deep Sleep (DSV) or Deeper Sleep (DRSV) modes.
It integrates a high-current gate driver (2A source / 4A sink on LG, 2A source/sink on UG), internal bootstrap diode, and PGOOD delay circuit (3–12ms) that masks transitions during VID or mode changes. Protection includes cycle-by-cycle overcurrent shutdown (32-cycle latch-off), ±0.8% system accuracy over temperature, and precise OVP/UVP monitoring referenced to the active VID setpoint.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage Range | 0.700V to 1.708V in 16mV steps - enables precise IMVP-IV VID compliance for Pentium-M processors. |
| Switching Frequency | 250kHz to 500kHz (user-programmable via FSET resistor) - balances efficiency, EMI, and inductor size in notebook designs. |
| System Accuracy | ±0.8% over -10°C to +85°C - ensures stable CORE voltage regulation across thermal operating range. |
| Overvoltage Threshold | 112% of active VID/DSV/DRSV setpoint - latches off converter and holds PGOOD low to protect CPU. |
| Undervoltage Threshold | 84% of active VID/DSV/DRSV setpoint - triggers fault shutdown before critical undervoltage occurs. |
| Current Sensing | Loss-less rDS(ON) sensing - eliminates external sense resistor, reducing board area and conduction loss. |
| Gate Drive Capability | UG: 2A sink/source; LG: 4A sink / 2A source - drives modern low-Qg MOSFETs without external drivers. |
Pinout & Package
ISL6218CV is packaged in a 38-lead TSSOP (Pb-free, RoHS-compliant, M38.173 drawing) with exposed pad thermal enhancement. Pin functions are validated per FN9101 Rev 6.00 datasheet, Page 5.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Primary IC supply input | +5V ±5% main power rail; POR threshold 4.39V–4.5V rising ensures reliable startup. |
| EN | Enable control input | Directly tied to VR_ON; >2.0V enables soft-start, <1.0V resets latched faults. |
| VID0–VID5 | Digital voltage identification inputs | 6-bit parallel bus setting DACOUT voltage (0.700V–1.708V); no internal pull-ups. |
| PGOOD | Power-good status I/O | Open-drain output held low during startup, VID changes, or faults; masked during transitions. |
| UG / LG | High-side / low-side gate drivers | Integrated 2A/4A drivers eliminate need for external drivers; BOOT and VSSP support bootstrap operation. |
| FSET | Frequency programming input | Resistor-to-ground sets fSW; 243kΩ yields 250kHz (±1%), scalable to 500kHz. |
| DSV / DRSV | Deep/Deeper Sleep voltage references | External resistive dividers set sleep voltages at 98.8% (DSV) and fixed lower level (DRSV) of VID. |
| OCSET | Overcurrent threshold setting | 1.75V reference pin; 10µA–15µA sink current sets IOC threshold via external resistor. |
Key Features
| Feature | Design Value |
|---|---|
| IMVP-IV™ Compliance | Fully implements Intel's mobile voltage positioning spec including VID decoding, droop compensation, and sleep-mode sequencing. |
| Discontinuous Mode (PSI) | Automatically enters diode-emulation mode in Deep/Deeper Sleep to eliminate reverse inductor current and boost light-load efficiency. |
| Integrated Gate Drivers | Eliminates external driver ICs: UG/LG drive capability (2A/4A) matches low-Qg MOSFETs used in ultra-thin notebooks. |
| Programmable Droop | Load-line slope set via EA+/SOFT/DRROOP resistor network - ensures stable dynamic response per IMVP-IV requirements. |
| Three-State Startup | Holds UG/LG in high-impedance until VDD exceeds POR and EN is asserted - prevents uncontrolled inrush during power-up. |
Applications
| Mobile CPU Core Regulation | Notebook Power Sequencing |
|---|---|
|
Use Scenario: Regulating CORE voltage for Intel Pentium-M microprocessors in thin-and-light notebooks. IC Role / Device Role / Timing Role: Primary PWM controller implementing IMVP-IV voltage positioning, VID decoding, and droop-based load-line regulation. Use Value: Enables precise 16mV-step voltage scaling across active, deep, and deeper sleep states - meeting Intel's dynamic power management requirements. |
Use Scenario: Coordinating startup timing between VCCP, VCC_MCH, and CORE rails in dual-regulator notebook platforms. IC Role / Device Role / Timing Role: PGOOD input/output synchronizes CORE rail enablement with companion regulators (e.g., ISL6225). Use Value: 3–12ms PGOOD delay ensures VCCP/VCC_MCH stabilize before CORE slewing begins - preventing system lockup during boot. |
| Light-Load Efficiency Optimization | Processor Sleep-State Transitions |
|
Use Scenario: Maintaining high efficiency during idle or low-utilization states in battery-powered notebooks. IC Role / Device Role / Timing Role: Discontinuous mode (PSI) activation in Deep/Deeper Sleep disables low-side MOSFET conduction when inductor current reverses. Use Value: Eliminates reverse conduction loss in low-side MOSFET - extends battery life without requiring external PSI control signals. |
Use Scenario: Executing rapid voltage transitions between Active, Deep Sleep, and Deeper Sleep modes during CPU C-state entry/exit. IC Role / Device Role / Timing Role: Direct interface with STP_CPU (DSEN) and DPRSLPVR (DRSEN) logic pins enables sub-microsecond mode switching. Use Value: VID-independent DSV/DRSV voltage references allow deterministic, glitch-free voltage slewing - critical for maintaining cache coherency during state transitions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck PWM controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL6223CRZ | Single-phase IMVP-IV+ controller in 40-lead QFN; adds VRM 11.1 compatibility and enhanced thermal performance (θJA = 32°C/W). | Targets newer Pentium-M and Core Solo/Duo platforms requiring VRM 11.1 support and higher current density. | Choose ISL6223CRZ for new designs needing VRM 11.1 compliance and improved thermal headroom in compact layouts. |
| RT8802AGQW | Single-phase IMVP-6 controller with integrated MOSFET drivers; supports 0.3–1.5V output, 300–1000kHz fSW, and digital VID interface. | Designed for Intel Core 2 Duo and later CPUs; lacks native IMVP-IV DSV/DRSV sleep pin mapping. | Use RT8802AGQW only if migrating to post-Pentium-M platforms and redesigning sleep-mode logic and voltage references. |
Compared with ISL6218CV, ISL6223CRZ offers direct IMVP-IV+ and VRM 11.1 support in a thermally superior QFN package, while RT8802AGQW targets newer architectures with different VID protocols and no backward-compatible DSV/DRSV pin functionality - making ISL6218CV irreplaceable for legacy Pentium-M designs requiring exact IMVP-IV timing and sleep-mode behavior.
Availability
ISL6218CV is available at Aetrix Electronics and suitable for notebook motherboard design, mobile CPU power delivery, and IMVP-IV-compliant embedded computing applications requiring stable component supply and long-term lifecycle support.
Supply support for ISL6218CV 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 power management ICs, including comprehensive documentation, application notes, and long-term manufacturing commitment.
The ISL6218CV belongs to Intersil's IMVP-IV™-compliant buck controller product line, engineered specifically for precision CORE voltage regulation in Intel mobile platforms - emphasizing low-noise, fast transient response, and seamless integration with system sleep-state logic.
FAQ
What is the supported temperature range for the ISL6218CV?
The ISL6218CV operates across an ambient temperature range of -10°C to +85°C, with a maximum junction temperature of +125°C. Its ±0.8% system accuracy specification is guaranteed over this full industrial temperature range, ensuring reliable CORE voltage regulation in demanding notebook thermal environments. The ISL6218CV datasheet confirms these limits in the Recommended Operating Conditions table on Page 3.
Does the ISL6218CV require an external current sense resistor?
No, the ISL6218CV supports loss-less current sensing using the MOSFET's rDS(ON), eliminating the need for an external sense resistor. This reduces board area, conduction losses, and BOM cost. However, the datasheet explicitly states that a discrete precision current sense resistor is optional for applications requiring higher current measurement accuracy than rDS(ON) drift allows.
How does the ISL6218CV handle power-good sequencing with other voltage rails?
The ISL6218CV uses its bidirectional PGOOD pin to coordinate startup with VCCP and VCC_MCH regulators. During initialization, it treats PGOOD as an input and waits for those rails to assert high before beginning VID capture and CORE voltage slewing. After startup, PGOOD becomes an open-drain output that goes low during faults or VID transitions - enabling system-level power sequencing and fault isolation in multi-rail notebook power architectures.
What are the key differences between Deep Sleep and Deeper Sleep modes on the ISL6218CV?
Deep Sleep mode (DSEN=LOW, DRSEN=LOW) regulates CORE voltage to the DSV pin voltage minus droop; Deeper Sleep mode (DSEN=LOW, DRSEN=HIGH) regulates to the DRSV pin voltage minus droop. DSV is typically set to 98.8% of the active VID voltage per IMVP-IV, while DRSV is a lower fixed voltage. Both modes activate discontinuous conduction (PSI) to maximize light-load efficiency, but DRSV enables deeper power savings than DSV.
Can the ISL6218CV be used with modern Intel processors beyond Pentium-M?
No - the ISL6218CV is specifically designed for Intel Pentium-M and early Core Solo/Duo processors compliant with IMVP-IV™ and IMVP-IV+™. It lacks support for later specifications such as IMVP-6, VRM 11.1, or digital SVID interfaces. For newer CPUs, Renesas recommends alternatives like the ISL6223CRZ (IMVP-IV+) or ISL9583x series (IMVP-7/8), which provide updated protocol handling and feature sets required by post-2007 mobile platforms.
ISL6218CV 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
ISL6218CV FAQ
1.How can I place an order for ISL6218CV through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL6218CV 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 ISL6218CV reliable?
The price and inventory of ISL6218CV are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL6218CV is usually 5 days.
3.What payment methods are accepted for ISL6218CV?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL6218CV transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL6218CV?
ISL6218CV orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL6218CV 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 ISL6218CV?
For technical support, including ISL6218CV datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL6218CV requirements.
6.How does Aetrix verify that ISL6218CV is sourced from the original manufacturer or authorized distributors?
All ISL6218CV 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 ISL6218CV meets industry standards.
7.What is the process for return or replacement of ISL6218CV?
All ISL6218CV units undergo pre-shipment inspection (PSI). If there is an issue with ISL6218CV, 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 ISL6218CV part is unused and in its original packaging.
Return procedure for ISL6218CV:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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