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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Power Management - Specialized

Renesas ISL6218CV-T

Name: ISL6218CV-T
Brand: Renesas
SKU: ISL6218CV-T
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ISL6218CV-T

Manufacturer:: Renesas

Category:: Power Management - Specialized

Package:: 38-TFSOP (0.173", 4.40mm Width)

Datasheet:: ISL6218CV-T.pdf

Description:: IC CTRLR INTEL PENT M 38-TSSOP

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Product details

Overview

ISL6218CV-T 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 processors under IMVP-IV™ and IMVP-IV+™ specifications. It delivers 0.700V–1.708V CORE voltage regulation in 16mV steps via 6-bit VID interface, supports 250kHz–500kHz programmable switching frequency, and implements lossless MOSFET r_DS(ON) current sensing for notebook CPU power delivery.

For engineers reviewing the ISL6218CV-T datasheet, ISL6218CV-T pinout, ISL6218CV-T application, or ISL6218CV-T equivalent, key selection considerations include IMVP-IV compliance, droop-based load-line regulation, deep/deeper sleep mode logic interface (DSEN/DRSEN), PGOOD delay masking during VID transitions, and TSSOP-38 package thermal performance (θ_JA = 72°C/W).

Technical Context

The ISL6218CV-T employs average current-mode control combined with input voltage feed-forward to achieve fast transient response for mobile CPU core loads. Its proprietary droop architecture uses a programmable current source (12–16µA) referenced to EA+ to generate load-line compensation proportional to sensed output current.

It integrates dual-mode operation: synchronous buck in Active mode and discontinuous conduction (PSI-like diode emulation) in Deep/Deeper Sleep modes-triggered automatically by negative inductor current detection without external signals. Protection includes cycle-by-cycle overcurrent shutdown (32-cycle latch), ±12% overvoltage/±16% undervoltage monitoring relative to VID setpoint, and internal PGOOD blanking during mode or VID changes.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltage Range	0.700V–1.708V in 16mV steps; digitally programmed via 6-bit VID inputs per IMVP-IV spec.
Switching Frequency	250kHz–500kHz; set by resistor on FSET pin; enables optimization of efficiency vs. size in mobile VRMs.
System Accuracy	±0.8% over –10°C to +85°C; ensures tight CORE voltage tolerance critical for Pentium-M stability.
Current Sensing	Lossless r_DS(ON) sensing; eliminates discrete sense resistor, reducing BOM cost and PCB area.
Droop Current	12.0–16.0µA; sets load-line slope for IMVP-IV-compliant voltage positioning under dynamic load.
Overcurrent Response	32-cycle shutdown; provides fast fault containment while avoiding nuisance tripping during transients.
PGOOD Delay	3ms–12ms after VCCP/VCC_MCH regulation; ensures coordinated power sequencing in multi-rail systems.

Pinout & Package

ISL6218CV-T is packaged in a 38-lead thin shrink small-outline package (TSSOP) with exposed pad thermal enhancement, rated for –10°C to +85°C ambient operation and compatible with Pb-free reflow profiles.

Pin	Circuit Role	Design Meaning
VDD	Primary supply input	+5V ±5% bias rail; powers internal logic, reference, and gate drivers; POR threshold 4.39–4.5V rising.
EN	Enable control	Direct interface to VR_ON signal; high >2.0V enables soft-start; low <1.0V resets latched faults.
VID0–VID5	Digital voltage ID inputs	6-bit parallel bus setting DAC output (0.700–1.708V); no internal pull-up/down; accepts 1.0/3.3/5.0V CMOS levels.
PGOOD	Power-good status I/O	Open-drain output pulled low during OVP/UVP/OC; masked during VID/mode transitions; 3–12ms startup delay.
UG / LG	Gate drive outputs	High-side (UG) and low-side (LG) MOSFET drivers; 2A sink/4A sink capability; supports fast-switching Si/SiC FETs.
ISEN	Current sense input	Accepts scaled current signal from low-side MOSFET r_DS(ON); full-scale input 32µA; enables lossless sensing.
FSET	Frequency programming	Resistor-to-ground sets f_SW from 250kHz to 500kHz; enables trade-off between efficiency and EMI filtering size.
DSEN / DRSEN	Sleep mode control	DSEN = STP_CPU, DRSEN = DPRSLPVR; logic combination selects Active/Deep/Deeper Sleep voltage setpoints.

Key Features

Feature	Design Value
IMVP-IV™ Compliance	Fully implements Intel mobile voltage positioning spec including VID decoding, droop, PSI emulation, and sleep mode sequencing.
Integrated Gate Drivers	On-chip high- and low-side drivers with 2A/4A sink strength eliminate need for external drivers and reduce layout complexity.
Lossless Current Sensing	r_DS(ON)-based sensing avoids power loss and board space of discrete shunt resistors while maintaining accuracy.
Programmable Droop & Slew Rate	Droop current (12–16µA) and SOFT capacitor set load-line slope and VID transition slew rate per IMVP-IV timing requirements.
Discontinuous Mode (PSI)	Automatic diode-emulation in Deep/Deeper Sleep eliminates reverse conduction loss without external control signals.

Applications

Mobile CPU Core Regulation	Intel Pentium-M Notebook VRM
Use Scenario: Power delivery to Pentium-M microprocessor in ultra-thin notebook platforms requiring strict IMVP-IV compliance. IC Role / Device Role / Timing Role: Primary single-phase buck PWM controller managing CORE voltage, VID decoding, droop compensation, and sleep-state transitions. Use Value: Enables precise 0.7–1.7V regulation with ±0.8% system accuracy, 3–12ms PGOOD coordination, and seamless VID slewing during dynamic frequency scaling.	Use Scenario: Integrated voltage regulator module (VRM) for Intel chipset-based mobile motherboards with VCCP/VCC_MCH co-regulation. IC Role / Device Role / Timing Role: CORE regulator synchronized to VCCP/VCC_MCH PGOOD signals via shared PGOOD net; initiates VID capture only after auxiliary rails are stable. Use Value: Ensures safe power sequencing and prevents premature CPU activation; leverages internal PGOOD blanking to avoid false fault triggers during VID updates.
Deep/Deeper Sleep Power Management	Thermally Constrained Mobile Designs
Use Scenario: Dynamic power state management in battery-powered notebooks during idle or low-utilization states. IC Role / Device Role / Timing Role: Voltage setpoint selector using DSEN/DRSEN logic inputs to switch between Active (VID), Deep Sleep (DSV), and Deeper Sleep (DRSV) levels. Use Value: Reduces CORE voltage to 98.8% of VID (Deep) or user-defined lower level (Deeper), cutting static power by >30% without software intervention.	Use Scenario: High-density mobile PCBs where thermal dissipation and component count must be minimized. IC Role / Device Role / Timing Role: Single-chip solution integrating PWM controller, gate drivers, bootstrap diode, and protection logic in 38-pin TSSOP. Use Value: Eliminates 3–4 discrete components (drivers, sense resistor, comparator, timer), reduces thermal resistance (θ_JA = 72°C/W), and simplifies layout.

Mobile CPU Core Regulation

Intel Pentium-M Notebook VRM

Use Scenario: Power delivery to Pentium-M microprocessor in ultra-thin notebook platforms requiring strict IMVP-IV compliance.

IC Role / Device Role / Timing Role: Primary single-phase buck PWM controller managing CORE voltage, VID decoding, droop compensation, and sleep-state transitions.

Use Value: Enables precise 0.7–1.7V regulation with ±0.8% system accuracy, 3–12ms PGOOD coordination, and seamless VID slewing during dynamic frequency scaling.

Use Scenario: Integrated voltage regulator module (VRM) for Intel chipset-based mobile motherboards with VCCP/VCC_MCH co-regulation.

IC Role / Device Role / Timing Role: CORE regulator synchronized to VCCP/VCC_MCH PGOOD signals via shared PGOOD net; initiates VID capture only after auxiliary rails are stable.

Use Value: Ensures safe power sequencing and prevents premature CPU activation; leverages internal PGOOD blanking to avoid false fault triggers during VID updates.

Deep/Deeper Sleep Power Management

Thermally Constrained Mobile Designs

Use Scenario: Dynamic power state management in battery-powered notebooks during idle or low-utilization states.

IC Role / Device Role / Timing Role: Voltage setpoint selector using DSEN/DRSEN logic inputs to switch between Active (VID), Deep Sleep (DSV), and Deeper Sleep (DRSV) levels.

Use Value: Reduces CORE voltage to 98.8% of VID (Deep) or user-defined lower level (Deeper), cutting static power by >30% without software intervention.

Use Scenario: High-density mobile PCBs where thermal dissipation and component count must be minimized.

IC Role / Device Role / Timing Role: Single-chip solution integrating PWM controller, gate drivers, bootstrap diode, and protection logic in 38-pin TSSOP.

Use Value: Eliminates 3–4 discrete components (drivers, sense resistor, comparator, timer), reduces thermal resistance (θ_JA = 72°C/W), and simplifies layout.

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-T	40-lead QFN package; higher thermal performance (θ_JA = 32°C/W); identical electrical specs and pinout mapping except for NC pin locations.	Preferred for thermally constrained designs requiring higher power density; same IMVP-IV compliance and sleep mode logic.	Select ISL6228CRZ-T when board-level thermal budget is tighter and QFN reflow is supported.
RT8802AGQW	Single-phase IMVP-6/7 controller; supports higher max current (60A), faster VID response, and digital interface (SVID); no native DSEN/DRSEN pins.	Targets newer Intel Core i-series CPUs; requires SVID host controller instead of parallel VID bus; lacks direct deep-sleep logic compatibility.	Choose RT8802AGQW only for post-Pentium-M platforms with SVID support and higher current demands.

Compared with ISL6218CV-T, ISL6228CRZ-T offers superior thermal handling in QFN but shares identical functionality and IMVP-IV timing, while RT8802AGQW targets next-generation SVID-based systems with no backward compatibility for legacy VID/DSEN/DRSEN signaling.

Availability

ISL6218CV-T is available at Aetrix Electronics and suitable for notebook motherboard design, mobile VRM development, and Intel Pentium-M platform sustainment requiring stable component supply and long-term lifecycle support.

Supply support for ISL6218CV-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 analog and power management ICs.

The ISL6218CV-T belongs to Renesas' mobile CPU power controller product line, engineered specifically for Intel IMVP-IV™ compliant notebook voltage regulation with emphasis on precision droop control, sleep-state efficiency, and system-level power sequencing.

FAQ

What is the operating temperature range for the ISL6218CV-T?

The ISL6218CV-T is specified for ambient operation from –10°C to +85°C. Its junction temperature must remain below +125°C under all conditions. The TSSOP-38 package has a thermal resistance θ_JA of 72°C/W, so proper PCB copper pour and airflow are required to maintain reliability at maximum load. This range aligns with standard notebook chassis thermal environments where the ISL6218CV-T is deployed.

How does the ISL6218CV-T implement lossless current sensing?

The ISL6218CV-T senses current through the r_DS(ON) of the low-side MOSFET using the ISEN pin, eliminating the need for a discrete shunt resistor. It scales the MOSFET's conduction voltage drop to a 32µA full-scale current into ISEN, enabling accurate overcurrent detection and droop generation without added power loss or board area. This method is validated across temperature and process variation per IMVP-IV requirements.

What are the voltage setpoints for Deep Sleep and Deeper Sleep modes on the ISL6218CV-T?

In Deep Sleep mode (DSEN = LOW, DRSEN = LOW), the ISL6218CV-T regulates to the voltage on the DSV pin minus droop; DSV is typically set to 98.8% of the active VID voltage via a resistor divider from DACOUT. In Deeper Sleep mode (DSEN = LOW, DRSEN = HIGH), it regulates to the voltage on the DRSV pin minus droop; DRSV is independently programmable using a divider from the 1.75V OCSET reference.

Does the ISL6218CV-T support automatic discontinuous conduction mode (DCM)?

Yes-the ISL6218CV-T automatically enters discontinuous conduction mode (diode emulation) during Deep and Deeper Sleep modes when inductor current approaches zero. It detects negative current flow through the low-side MOSFET and forces both UG and LG into high-impedance "Three-State" to prevent reverse conduction. This occurs without external signals and improves light-load efficiency per IMVP-IV PSI requirements.

What is the purpose of the PGOOD pin's internal blanking function on the ISL6218CV-T?

The PGOOD pin on the ISL6218CV-T is internally blanked (held low) during VID code changes and sleep mode transitions to prevent false system reset or fault reporting. This masking ensures that brief voltage excursions during slewing do not trigger downstream protection circuits. Blanking duration is tied to internal timing and ends once regulation is re-established, preserving system robustness during dynamic CPU state changes.

ISL6218CV-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:: 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-T FAQ

1.How can I place an order for ISL6218CV-T through Aetrix?

Please submit a Request for Quotation (RFQ) for ISL6218CV-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 ISL6218CV-T reliable?

The price and inventory of ISL6218CV-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL6218CV-T is usually 5 days.

3.What payment methods are accepted for ISL6218CV-T?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL6218CV-T transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ISL6218CV-T?

ISL6218CV-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ISL6218CV-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 ISL6218CV-T?

For technical support, including ISL6218CV-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL6218CV-T requirements.

6.How does Aetrix verify that ISL6218CV-T is sourced from the original manufacturer or authorized distributors?

All ISL6218CV-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 ISL6218CV-T meets industry standards.

7.What is the process for return or replacement of ISL6218CV-T?

All ISL6218CV-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL6218CV-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 ISL6218CV-T part is unused and in its original packaging.

Return procedure for ISL6218CV-T:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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