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Renesas ISL62883HRTZ-T
- Part No.:
- ISL62883HRTZ-T
- Manufacturer:
- Renesas
- Category:
- Special Purpose Regulators
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
ISL62883HRTZ-T.pdf
- Description:
- IC REG CTRL IMVP-6.5 1OUT 40TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,162
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Product details
Overview
ISL62883HRTZ-T from Renesas Electronics (formerly Intersil) is a 3-phase PWM buck controller IC for Intel IMVP-6.5™ mobile CPU core power delivery. It integrates two gate drivers, supports DCR/resistor current sensing, delivers ±0.5% system accuracy over temperature, enables diode emulation mode, and operates across 200–500 kHz switching frequency. It is deployed in high-efficiency notebook CPU voltage regulator modules (VRMs).
For engineers reviewing the ISL62883HRTZ-T datasheet, ISL62883HRTZ-T pinout, ISL62883HRTZ-T application, or ISL62883HRTZ-T equivalent, key selection criteria include IMVP-6.5™ compliance, programmable 1-/2-/3-phase operation, differential remote sensing, adaptive body diode conduction time reduction, and PSI#/DPRSLPVR signal support for dynamic phase shedding.
Technical Context
The ISL62883HRTZ-T implements Intersil's Robust Ripple Regulator (R3™) modulator architecture, combining fixed-frequency PWM stability with hysteretic-like transient response via variable-frequency operation during load steps. Its master-slave clock distribution ensures precise 120° phase interleaving in 3-phase mode and 180° in 2-phase mode.
It uses differential remote sensing (VSEN/RTN) for die-level voltage regulation, supports lossless inductor DCR or discrete resistor current sensing with NTC thermal compensation, and features integrated droop-based load-line implementation using ISUM+/ISUM− inputs and a programmable COMP-to-FB current source.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Regulation Standard | Fully compliant with Intel IMVP-6.5™ specification, including PSI# and DPRSLPVR interface behavior. |
| Phase Configuration | Programmable 1-, 2-, or 3-phase operation; ISL62883HRTZ-T defaults to 3-phase with PWM3 active. |
| Output Accuracy | ±0.5% system accuracy over temperature (−10°C to +100°C ambient) for VID = 0.75–1.50 V. |
| Switching Frequency | 200–500 kHz adjustable via VW-to-COMP resistor; nominal 300 kHz at Rfset = 7 kΩ. |
| VID Input Range | 7-bit input (VID0–VID6) supporting 0.300 V to 1.500 V in 12.5 mV steps, with on-the-fly updates. |
| Current Sensing | Supports both lossless inductor DCR sensing and precision resistor sensing, thermally compensated via single NTC on NTC pin. |
| Thermal Protection | VR_TT# open-drain output triggered by NTC voltage drop below 1.18–1.22 V; internal thermal monitor with 147 kΩ RBIAS reference. |
Pinout & Package
ISL62883HRTZ-T is housed in a Pb-free, RoHS-compliant 40-lead 5 mm × 5 mm TQFN package (L40.5x5) with exposed GND pad on bottom.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VID0–VID6 | Microprocessor voltage identification input | 7-bit digital bus setting output voltage per IMVP-6.5™ VID table; LSB = VID0, MSB = VID6. |
| FB | Inverting error amplifier input | Primary feedback node for closed-loop voltage regulation; driven by differential remote sense amplifier. |
| VSEN / RTN | Differential remote voltage sense pair | VSEN connects to CPU die; RTN connects to CPU ground - enables accurate die-level regulation, rejecting PCB IR drop. |
| ISEN1 / ISEN2 / ISEN3(FB2) | Per-phase current sense inputs | ISEN1/ISEN2 for Phase-1/Phase-2; ISEN3/FB2 serves as Phase-3 current sense or FB2 compensation pin in 2-phase mode. |
| UGATE1 / LGATE1 / UGATE2 / LGATE2 | Integrated gate driver outputs | Drive high-side/low-side MOSFET gates for Phases 1 and 2; UGATE/LGATE pairs require boot capacitors (BOOT1/BOOT2). |
| PSI# / DPRSLPVR | Power state control inputs | PSI# low disables PWM3 (drops Phase-3); DPRSLPVR high triggers deeper sleep mode and adjusts OCP threshold. |
| IMON | Analog current monitor output | Current-source output proportional to total output current (120 µA typical at 20 µA ISUM−), used for telemetry and protection. |
| PGOOD | Open-drain power-good indicator | Asserts high when regulated output is within ±10% of target for ≥6.3 ms; requires external pull-up to VCCP or 3.3 V. |
Key Features
| Feature | Design Value |
|---|---|
| Robust Ripple Regulator (R3™) Modulator | Delivers faster transient response than fixed-frequency PWM by increasing switching frequency during load steps and reducing it at light load. |
| Adaptive Body Diode Conduction Time Reduction | Minimizes reverse-conduction loss in diode emulation mode by turning off LGATE when phase-node voltage reaches zero. |
| User-selectable Overshoot Reduction | Reduces required output capacitance by aggressively limiting voltage overshoot during transients; configurable via external components. |
| FB2 Function in 2-Phase Mode | Enables optimized 1-phase compensation when operating in 2-phase configuration, improving light-load stability and efficiency. |
| Differential Remote Voltage Sensing | Compensates for PCB trace resistance between VRM and CPU die, ensuring ±0.5% regulation accuracy at the processor core. |
Applications
| Notebook CPU Core VRM | Ultrabook Adaptive Power Management |
|---|---|
Use Scenario: High-current, dynamically scaling core voltage supply for Intel Core i5/i7 mobile processors in 13–15" notebooks. IC Role / Device Role / Timing Role: Primary multiphase PWM controller managing up to 3 phases, coordinating gate drivers, current sensing, and IMVP-6.5™ protocol signaling. Use Value: Enables <1.5% total output ripple and <10 µs transient recovery while maintaining >90% peak efficiency across 1–100 A load range. | Use Scenario: Power delivery for fanless ultrabooks requiring aggressive light-load efficiency and thermal management under varying workloads. IC Role / Device Role / Timing Role: Controller executing diode emulation, PSI#-driven phase shedding, and period stretching to reduce switching losses below 5 A. Use Value: Achieves >85% efficiency at 1 A load via adaptive body diode control and discontinuous conduction mode (DCM) entry. |
| Mobile Workstation VRM | Embedded Mobile Computing Platform |
Use Scenario: High-reliability core power for quad-core Xeon E3 or Core i9 mobile workstations with sustained multi-threaded loads. IC Role / Device Role / Timing Role: 3-phase controller with differential sensing, thermal monitoring (VR_TT#), and IMON current reporting for system-level telemetry. Use Value: Supports stable 1.1–1.3 V operation at up to 120 A with ±0.5% accuracy and real-time current monitoring for thermal derating. | Use Scenario: Compact, ruggedized computing platform for industrial tablets or medical handhelds requiring long-term component availability. IC Role / Device Role / Timing Role: IMVP-6.5™-compliant controller enabling firmware-controlled voltage scaling and deep-sleep entry via DPRSLPVR. Use Value: Reduces idle power by >40% through DPRSLPVR-triggered phase reduction and diode emulation without software intervention. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multiphase buck controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL62883IRTZ | Identical functionality and pinout; extended temperature range (−40°C to +100°C ambient) vs. ISL62883HRTZ-T (−10°C to +100°C). | Suitable for wider environmental deployments including automotive-adjacent or outdoor-ruggedized notebooks. | Select ISL62883IRTZ when operating below −10°C is required; otherwise ISL62883HRTZ-T is cost-optimized for standard commercial notebooks. |
| RTQ2136B-QA | Single-chip 3-phase controller with integrated high-/low-side MOSFETs; no external gate drivers needed; supports Intel VR13/13.0 protocols, not IMVP-6.5™. | Targets newer platforms requiring VR13 compliance and higher integration; lacks PSI#/DPRSLPVR compatibility. | Choose RTQ2136B-QA only for VR13-compliant designs; ISL62883HRTZ-T remains mandatory for legacy IMVP-6.5™ systems. |
Compared with ISL62883IRTZ, ISL62883HRTZ-T trades extended cold-temperature operation for lower cost and identical performance above −10°C; versus RTQ2136B-QA, it provides IMVP-6.5™ protocol fidelity and external driver flexibility at the expense of integration level.
Availability
ISL62883HRTZ-T is available at Aetrix Electronics and suitable for notebook CPU VRMs, ultrabook adaptive power systems, and mobile workstation power delivery requiring stable component supply, long-lifecycle support, and IMVP-6.5™ compliance.
Supply support for ISL62883HRTZ-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 acquired Intersil in 2017 and maintains full technical and supply chain continuity for its analog and power management portfolio.
The ISL62883HRTZ-T belongs to Renesas' high-performance CPU core power controller product line, designed specifically for Intel mobile microprocessor voltage regulation with emphasis on transient response, thermal efficiency, and protocol compliance.
FAQ
What is the operating temperature range for the ISL62883HRTZ-T?
The ISL62883HRTZ-T is rated for an ambient operating temperature range of −10°C to +100°C, with a maximum junction temperature of +125°C. This range is validated per the manufacturer's recommended operating conditions and applies to all electrical specifications unless otherwise noted in the datasheet. The ISL62883HRTZ-T uses thermal monitoring via the NTC and VR_TT# pins to protect against overheating within this envelope.
Does the ISL62883HRTZ-T support diode emulation mode, and how is it activated?
Yes, the ISL62883HRTZ-T supports diode emulation (DE) mode to improve light-load efficiency. DE mode is automatically entered when load current drops sufficiently to allow inductor current to reach zero between switching cycles. The ISL62883HRTZ-T monitors phase-node voltage and turns off the low-side gate driver (LGATE) when voltage reaches zero, preventing reverse conduction. No external enable signal is required - activation is intrinsic to load and control loop behavior.
How does the ISL62883HRTZ-T implement load-line regulation?
The ISL62883HRTZ-T implements load-line regulation using a droop-based method. It senses total output current via ISUM+ and ISUM− inputs, converts the summed current into a voltage (Cn), then generates a proportional current source (Idroop) injected into the FB pin. This current creates a controlled voltage drop across the feedback network, causing output voltage to decrease linearly with increasing load - matching Intel IMVP-6.5™ load-line requirements without external op-amps.
Can the ISL62883HRTZ-T be configured for 1-phase or 2-phase operation, and how is that done?
Yes, the ISL62883HRTZ-T is programmable for 1-, 2-, or 3-phase operation. Phase count is set by pulling specific pins: PWM3 high disables Phase-3; ISEN2 high disables Phase-2. In 2-phase mode, the ISEN3/FB2 pin functions as FB2 for optimized 1-phase compensation. Configuration is hardware-defined via pin strapping - no register programming or I²C interface is involved. All modes retain full IMVP-6.5™ compliance and R3™ modulator benefits.
What current sensing methods does the ISL62883HRTZ-T support, and how is thermal compensation handled?
The ISL62883HRTZ-T supports both lossless inductor DCR sensing and discrete resistor sensing. For DCR sensing, a single NTC thermistor connected to the NTC pin compensates for inductor resistance drift over temperature. The internal circuitry scales the current-sense gain based on NTC voltage, maintaining accuracy across −10°C to +100°C ambient. Resistor sensing bypasses NTC dependence but requires precision, low-tempco resistors for equivalent performance.
ISL62883HRTZ-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 40-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Applications:
- Controller, Intel IMVP-6.5™
- Voltage - Input:
- 5V ~ 21V
- Number of Outputs:
- 1
- Voltage - Output:
- 0.013V ~ 1.5V
- Operating Temperature:
- -10°C ~ 100°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 40-TQFN (5x5)
ISL62883HRTZ-T FAQ
1.How can I place an order for ISL62883HRTZ-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL62883HRTZ-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 ISL62883HRTZ-T reliable?
The price and inventory of ISL62883HRTZ-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL62883HRTZ-T is usually 5 days.
3.What payment methods are accepted for ISL62883HRTZ-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL62883HRTZ-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL62883HRTZ-T?
ISL62883HRTZ-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL62883HRTZ-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 ISL62883HRTZ-T?
For technical support, including ISL62883HRTZ-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL62883HRTZ-T requirements.
6.How does Aetrix verify that ISL62883HRTZ-T is sourced from the original manufacturer or authorized distributors?
All ISL62883HRTZ-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 ISL62883HRTZ-T meets industry standards.
7.What is the process for return or replacement of ISL62883HRTZ-T?
All ISL62883HRTZ-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL62883HRTZ-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 ISL62883HRTZ-T part is unused and in its original packaging.
Return procedure for ISL62883HRTZ-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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