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Renesas ISL6218CVZA
- Part No.:
- ISL6218CVZA
- Manufacturer:
- Renesas
- Category:
- Power Management - Specialized
- Package:
- 38-TFSOP (0.173", 4.40mm Width)
- Datasheet:
-
ISL6218CVZA.pdf
- Description:
- IC CTRLR INTEL PENT M 38-TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,991
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Product details
Overview
ISL6218CVZA from Intersil is a precision single-phase buck PWM controller with integrated half-bridge gate driver, designed for Intel Pentium-M mobile processors in notebook computers. It delivers IMVP-IV™/IMVP-IV+™ compliant CORE voltage regulation from 0.700V to 1.708V in 16mV steps, supports 250kHz–500kHz programmable switching frequency, and implements loss-less MOSFET rDS(ON) current sensing for high efficiency in battery-powered systems.
For engineers reviewing the ISL6218CVZA datasheet, ISL6218CVZA pinout, ISL6218CVZA application, or ISL6218CVZA equivalent, this page provides verified technical context, confirmed pin functions, IMVP-IV-specific mode control (Active/Deep/Deeper Sleep), droop-compensated voltage regulation, and real-world protection thresholds - all validated against FN9101 Rev 6.00.
Technical Context
The ISL6218CVZA implements average current mode control combined with input voltage feed-forward for fast transient response in mobile CPU core regulation. Its 6-bit VID DAC interfaces directly with Intel microprocessor logic to set output voltage, while dedicated DSEN/DRSEN inputs enable hardware-triggered Deep and Deeper Sleep transitions with programmable DSV/DRSV setpoints.
Protection architecture includes cycle-by-cycle overcurrent shutdown (32-cycle latch-off), PGOOD with 3ms–12ms delay and VID-change blanking, and overvoltage (112% of VID) and undervoltage (84% of VID) monitoring. The internal gate driver delivers 2A sink/2A source on UG and 4A sink/2A source on LG with integrated bootstrap diode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage Range | 0.700V to 1.708V in 16mV steps; matches IMVP-IV VID code table for precise CPU core voltage positioning. |
| Switching Frequency | 250kHz to 500kHz; user-programmable via FSET resistor; enables optimization of efficiency vs. size in notebook power stages. |
| System Accuracy | ±0.8% over temperature; ensures stable core voltage under thermal stress without external calibration. |
| Current Sensing | "Loss-less" MOSFET rDS(ON) sensing; eliminates discrete sense resistor, reducing BOM cost and PCB area. |
| Overcurrent Protection | 32-cycle shutdown; latches off converter and holds PGOOD low upon sustained overcurrent event. |
| Operating Temp Range | -10°C to +85°C ambient; validated for notebook chassis thermal environments. |
| Package | 38-lead TSSOP (Pb-free); RoHS-compliant with MSL-3 rating for standard reflow compatibility. |
Pinout & Package
ISL6218CVZA is packaged in a 38-lead Pb-free TSSOP (M38.173), thermally rated for θJA = 72°C/W. Pin functions are validated per FN9101 Rev 6.00 Page 5 functional descriptions and Page 2 top-view diagram.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | +5V supply input | Power-on reset threshold (4.39–4.5V rising) enables controller startup; must exceed POR before EN activation. |
| EN | Enable input | Direct interface to VR_ON signal; >2.0V enables soft-start, <1.0V resets latched faults. |
| VID0–VID5 | Digital voltage ID inputs | 6-bit parallel bus sets DACOUT voltage per IMVP-IV table; no internal pull-ups required. |
| UG / LG | High-side / low-side gate drivers | Integrated 2A/4A sink capability drives synchronous buck MOSFETs without external drivers. |
| ISEN | Current sense input | Accepts scaled current signal from MOSFET rDS(ON) or discrete resistor; enables loss-less sensing. |
| PGOOD | Open-drain status output | Indicates CORE regulation status; masked during VID/mode changes; 3–12ms delay after VCCP/VCC_MCH PGOOD assertion. |
| EA+ / FB / COMP | Error amplifier terminals | EA+ sets reference; FB is inverting input; COMP is error amp output - forms closed-loop droop-compensated regulation. |
| DSV / DRSV / STV | Sleep/boot voltage setpoints | External resistive dividers program Deep Sleep (DSV), Deeper Sleep (DRSV), and Boot (STV) voltages per IMVP-IV spec. |
Key Features
| Feature | Design Value |
|---|---|
| IMVP-IV™ compliance | Fully implements Intel mobile voltage positioning protocol 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. |
| Programmable droop | Load-line regulation via external RDROOP resistor; maintains stable voltage droop proportional to load current without external circuitry. |
| Integrated bootstrap diode | On-chip diode charges BOOT capacitor; eliminates external component and reduces layout complexity in high-side drive path. |
| Three-state gate drive | Holds UG/LG in high-impedance during POR, fault, or disable; prevents shoot-through and ensures safe power-up/down sequencing. |
Applications
| Mobile CPU Core Regulation | Notebook Battery Input Management |
|---|---|
Use Scenario: Regulating CORE voltage for Intel Pentium-M processors in ultra-thin notebooks with dynamic power states. IC Role / Device Role / Timing Role: Primary PWM controller implementing IMVP-IV voltage positioning, VID decoding, and droop-compensated feedback loop. Use Value: Enables precise 0.700V–1.708V output with ±0.8% accuracy across -10°C to +85°C, meeting Intel mobile processor specification. | Use Scenario: Managing wide-input battery range (5.6V–21V) while maintaining stable CORE output during battery discharge cycles. IC Role / Device Role / Timing Role: Voltage feed-forward input (VBAT pin) dynamically adjusts oscillator ramp amplitude to maintain consistent regulation despite battery sag. Use Value: Maintains tight voltage regulation and fast transient response even as battery voltage drops from 21V to 5.6V. |
| Deep/Deeper Sleep Mode Control | Overcurrent & Fault Protection |
Use Scenario: Reducing CPU core voltage during idle states to minimize leakage and dynamic power in mobile platforms. IC Role / Device Role / Timing Role: Hardware-triggered mode transition via DSEN/DRSEN pins; regulates to DSV (98.8% VID) or DRSV (user-defined) setpoints. Use Value: Achieves >30% reduction in CORE power during Deep Sleep without software intervention or additional logic. | Use Scenario: Protecting CPU and power stage from overcurrent, overvoltage, and undervoltage events in unattended operation. IC Role / Device Role / Timing Role: Cycle-by-cycle OC detection (32-cycle latch), 112%/84% VID thresholds, and PGOOD masking during transitions. Use Value: Prevents catastrophic failure by latching off converter and asserting PGOOD low within microseconds of fault detection. |
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; supports dual-phase operation; same IMVP-IV compliance and VID range. | Targeted at higher-current CPUs requiring multi-phase CORE regulation; not pin-compatible with ISL6218CVZA. | Select ISL6228CRZ only when scaling to dual-phase designs or requiring QFN thermal performance (θJA = 32°C/W). |
| RT8802AGQW | Single-phase IMVP-6/IMVP-7 compliant; 0.3V–1.5V output; no integrated bootstrap diode; requires external high-side driver. | Designed for newer Intel Core i-series CPUs; lacks Deep/Deeper Sleep hardware control pins (DSEN/DRSEN). | Choose RT8802AGQW only for post-IMVP-IV platforms where VID protocol and sleep mode logic differ significantly. |
Compared with ISL6218CVZA, ISL6228CRZ offers higher current capability and better thermal performance but requires PCB redesign; RT8802AGQW supports newer CPU generations but removes hardware sleep control and increases component count due to external gate drive.
Availability
ISL6218CVZA is available at Aetrix Electronics and suitable for notebook computer power design, mobile CPU core regulation, and IMVP-IV-compliant embedded computing applications requiring stable component supply across extended product lifecycles.
Supply support for ISL6218CVZA 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
Intersil (now part of Renesas Electronics) is a semiconductor company specializing in precision analog and power management ICs for computing, industrial, and communications markets.
The ISL6218 product line was engineered specifically for Intel mobile voltage positioning compliance in notebook CPU core regulators, delivering integrated gate drive, IMVP-IV timing, and hardware-managed sleep modes.
FAQ
What is the exact package type and lead count for ISL6218CVZA?
ISL6218CVZA uses a 38-lead Pb-free TSSOP package (package drawing M38.173), as confirmed in the Ordering Information table on page 1 of FN9101 Rev 6.00. This differs from the 40-lead QFN variant ISL6218CRZ and is not interchangeable without PCB revision.
Does ISL6218CVZA support both IMVP-IV and IMVP-IV+ specifications?
Yes, ISL6218CVZA is explicitly stated in the datasheet title and features list as compliant with both IMVP-IV™ and IMVP-IV+™ specifications. It implements all required voltage positioning, droop, sleep mode sequencing, and VID decoding functions defined in both standards.
How does ISL6218CVZA implement "loss-less" current sensing?
ISL6218CVZA performs loss-less current sensing by measuring voltage drop across the low-side MOSFET's rDS(ON), eliminating the need for a discrete sense resistor. The ISEN pin accepts this scaled signal, reducing power loss, board area, and BOM cost versus traditional shunt-based methods.
What are the voltage thresholds for overvoltage and undervoltage protection in ISL6218CVZA?
ISL6218CVZA triggers overvoltage protection at 112% of the active VID, Deep Sleep, or Deeper Sleep setpoint, and undervoltage protection at 84% of that setpoint. These thresholds are fixed ratios and apply regardless of programmed output voltage level.
Can ISL6218CVZA operate without an external current sense resistor?
Yes, ISL6218CVZA is designed for loss-less current sensing using MOSFET rDS(ON) by default. An external precision current sense resistor is optional and only required if higher current measurement accuracy is needed beyond what rDS(ON) sensing provides.
ISL6218CVZA 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
ISL6218CVZA FAQ
1.How can I place an order for ISL6218CVZA through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL6218CVZA 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 ISL6218CVZA reliable?
The price and inventory of ISL6218CVZA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL6218CVZA is usually 5 days.
3.What payment methods are accepted for ISL6218CVZA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL6218CVZA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL6218CVZA?
ISL6218CVZA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL6218CVZA 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 ISL6218CVZA?
For technical support, including ISL6218CVZA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL6218CVZA requirements.
6.How does Aetrix verify that ISL6218CVZA is sourced from the original manufacturer or authorized distributors?
All ISL6218CVZA 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 ISL6218CVZA meets industry standards.
7.What is the process for return or replacement of ISL6218CVZA?
All ISL6218CVZA units undergo pre-shipment inspection (PSI). If there is an issue with ISL6218CVZA, 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 ISL6218CVZA part is unused and in its original packaging.
Return procedure for ISL6218CVZA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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