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Renesas ISL6563CRZ-TK
- Part No.:
- ISL6563CRZ-TK
- Manufacturer:
- Renesas
- Category:
- Special Purpose Regulators
- Package:
- 24-VFQFN Exposed Pad
- Datasheet:
-
ISL6563CRZ-TK.pdf
- Description:
- IC REG CTRLR INTEL 1OUT 24QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,880
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Product details
Overview
ISL6563CRZ-TK from Renesas (formerly Intersil) is a two-phase multiphase buck PWM controller with integrated MOSFET drivers, designed for precision voltage regulation of advanced microprocessors. It supports Intel VRM9/VRM10 and AMD Hammer VID protocols, delivers ±1% system accuracy over temperature, and operates across 0°C to +70°C ambient range in a 24-lead QFN package. Its rDS(ON)-based current sensing enables automatic channel current balancing and droop programming for dynamic load-line regulation.
For engineers reviewing the ISL6563CRZ-TK datasheet, ISL6563CRZ-TK pinout, ISL6563CRZ-TK application, or ISL6563CRZ-TK equivalent, this page provides verified technical context, validated pin functions, confirmed VID compatibility modes, real-world multiphase design implications, and authoritative alternative part comparisons - all grounded in the FN9126 Rev 8.00 datasheet and official ordering information.
Technical Context
The ISL6563CRZ-TK implements interleaved two-phase PWM control using an internal oscillator with 189–255 kHz per-channel switching frequency, adjustable via external components. Its dual-channel architecture employs phase-interleaved timing to double effective ripple frequency and reduce output capacitor requirements.
It integrates lossless rDS(ON) current sensing on both PHASE1 and PHASE2 pins, feeding sampled currents through ISEN to enable real-time channel current balancing, overcurrent protection (95 µA threshold), and programmable droop via RISEN. The error amplifier features 96 dB DC gain and 20 MHz gain-bandwidth product for fast transient response.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Topology | Two-phase interleaved synchronous buck PWM controller with integrated high- and low-side gate drivers |
| VID Compatibility | Programmable for Intel VRM9, VRM10, or AMD Hammer DAC codes via DACSEL/VID5 and VRM10 pins |
| System Accuracy | ±1% over temperature (0°C to +70°C), enabling tight microprocessor core voltage regulation |
| Switching Frequency | 189–255 kHz per phase at +25°C; supports higher effective ripple frequency for reduced output capacitance |
| Current Sensing | rDS(ON)-based, no external sense resistors required; enables automatic channel current balance and OCP |
| Overcurrent Threshold | 95 µA reference; triggers hiccup-mode shutdown if both channels exceed threshold simultaneously or one channel exceeds it for 7 consecutive cycles |
| Droop Programming | Resistor-programmable via ISEN pin; implements load-line regulation to reduce voltage overshoot/undershoot during transients |
Pinout & Package
ISL6563CRZ-TK is housed in a Pb-free, RoHS-compliant 24-lead QFN package (4 mm × 4 mm, JEDEC MO-220 compliant), with exposed thermal pad for enhanced thermal performance. The package supports reflow soldering per IPC/JEDEC J-STD-020 Pb-free profile.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VID0–VID4 (Pins 2,1,24–22) | Voltage identification inputs | TTL-compatible logic inputs decoded into DAC reference voltage; internally pulled up to ~1.2 V |
| DACSEL/VID5 (Pin 3) | DAC standard selection or VRM10 bit 5 | Selects VRM9/AMD Hammer mode when open/high; serves as VID5 in VRM10 mode when VRM10 pin is grounded |
| VRM10 (Pin 4) | VRM10 compliance enable | Grounding selects VRM10 mode; open or high enables VRM9/Hammer selection via DACSEL |
| ENLL (Pin 21) | Enable input with precision threshold | Enables controller when pulled above ~0.61 V; disables operation when low |
| FB (Pin 6) & COMP (Pin 5) | Error amplifier inverting input and output | FB receives current-sensed droop signal and voltage feedback; COMP drives compensation network for loop stability |
| ISEN (Pin 7) | Current sense scaling input | Sets overcurrent threshold and droop magnitude via external resistor; accepts time-multiplexed rDS(ON) current samples from both phases |
| UGATE1/2 (Pins 19,12) | Upper MOSFET gate drive outputs | Drive high-side N-channel MOSFET gates with 0.5 Ω typical source/sink resistance; duty cycle limited to ≤66% |
| LGATE1/2 (Pins 17,15) | Lower MOSFET gate drive outputs | Drive low-side N-channel MOSFET gates with 0.5 Ω typical source/sink resistance; referenced to PGND |
| BOOT1/2 (Pins 20,11) | Bootstrap supply inputs | Provide floating bias for upper gate drivers via external bootstrap capacitors; internal diodes charge from PVCC |
| PHASE1/2 (Pins 18,13) | High-side switch source nodes | Return path for upper gate drivers; used for rDS(ON) voltage sampling during lower FET conduction |
| VCC (Pin 8) | Bias supply for small-signal circuitry | Requires local 0.1 µF ceramic decoupling; powers internal logic, DAC, and error amplifier |
| PVCC (Pin 16) | Power supply for gate drivers | Requires local 1 µF ceramic decoupling; supplies high-current drive capability for UGATE/LGATE outputs |
| GND (Pin 25) & PGND (Pin 14) | Analog ground and power ground | GND references small-signal circuitry; PGND references LGATE drivers and PHASE nodes - must be short, low-inductance paths |
Key Features
| Feature | Design Value |
|---|---|
| Integrated two-phase power conversion | Eliminates need for external phase controllers; reduces component count and PCB area vs. discrete multi-controller solutions |
| Lossless rDS(ON) current sensing | Removes external current-sense resistors, lowering BOM cost and power loss while enabling accurate per-phase current monitoring |
| Programmable droop voltage | Single-resistor adjustment of load-line slope improves transient response and prevents overshoot during sudden load steps |
| Multi-tiered overvoltage protection | Clamps output by turning on lower MOSFETs during fault; includes disabled-state OVP thresholds (1.65 V / 1.95 V) for safe startup |
| Start-up into pre-charged output | Enables reliable power sequencing in systems where output capacitors retain residual voltage before controller activation |
Applications
| Microprocessor Core Voltage Regulation | Server CPU Power Delivery |
|---|---|
|
Use Scenario: Regulating core voltage for Intel Pentium 4, Xeon, or AMD Opteron processors requiring dynamic VID changes and tight ±1% tolerance. IC Role / Device Role / Timing Role: Two-phase PWM controller managing parallel buck stages with interleaved timing to meet high-current, low-voltage demands. Use Value: Enables precise VRM9/VRM10/AMD Hammer compliance, fast transient recovery (<196 µs for 1.5 V → 1.7 V step), and automatic current sharing without external balancers. |
Use Scenario: High-efficiency, thermally distributed power delivery for dual-socket server motherboards with >100 A total load current. IC Role / Device Role / Timing Role: Primary voltage regulator IC coordinating two independent 50+ A phases with synchronized but interleaved switching. Use Value: Reduces RMS input ripple current by ~70% vs. single-phase, lowers output capacitor count, and spreads thermal dissipation across two MOSFET sets. |
| Embedded Computing Power Supply | Network Processor Board Power |
|
Use Scenario: Compact, high-density power solution for industrial embedded systems using AMD Geode or Intel Atom processors. IC Role / Device Role / Timing Role: Integrated controller with built-in gate drivers eliminates need for external driver ICs, simplifying layout and reducing layer count. Use Value: QFN package (4 mm × 4 mm) and rDS(ON) sensing minimize footprint and thermal overhead while maintaining ±1% regulation accuracy. |
Use Scenario: Powering multi-core network processors (e.g., Broadcom BCM1250) with rapid load transients from packet processing bursts. IC Role / Device Role / Timing Role: Fast-response PWM controller implementing droop-based load-line regulation to suppress voltage excursions during nanosecond-scale current spikes. Use Value: 20 MHz GBW error amplifier and 96 dB DC gain ensure stable loop behavior under wide bandwidth digital load profiles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multiphase buck controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL6564CRZ-TK | Four-phase version with identical VID support, same 24-lead QFN package, but higher channel count and extended frequency range (150–300 kHz) | Required for >120 A loads or where tighter ripple suppression is needed; not drop-in compatible due to different pin mapping and phase control logic | Select ISL6564CRZ-TK only when four-phase operation is mandatory; verify PCB layout and firmware support for additional phase signals. |
| RT8802AGQW | Two-phase controller with VRM10/VRM11 support, integrated MOSFET drivers, but uses external current-sense resistors and lacks rDS(ON) sensing | Suitable for designs prioritizing flexibility over cost-sensitive BOM optimization; requires additional sense resistors and compensation components | Choose RT8802AGQW if VRM11 compliance or programmable OCP thresholds are required; accept added board area and power loss from sense resistors. |
Compared with ISL6563CRZ-TK, the ISL6564CRZ-TK scales phase count but increases complexity and layout constraints, while the RT8802AGQW trades integrated rDS(ON) sensing for broader VID protocol coverage and configurable protection - making ISL6563CRZ-TK optimal for cost-sensitive, space-constrained VRM9/VRM10/AMD Hammer designs needing minimal external components.
Availability
ISL6563CRZ-TK is available at Aetrix Electronics and suitable for microprocessor core voltage regulation, server CPU power delivery, and embedded computing power supply applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for ISL6563CRZ-TK 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 manufacturing continuity for its analog and power management portfolio.
The ISL6563CRZ-TK belongs to Renesas' high-performance multiphase buck controller family, engineered specifically for precision voltage regulation of advanced microprocessors with dynamic VID requirements and stringent transient response demands.
FAQ
What is the operating temperature range for the ISL6563CRZ-TK?
The ISL6563CRZ-TK is rated for commercial temperature operation from 0°C to +70°C ambient, as confirmed in the FN9126 datasheet Ordering Information table. This range applies to all variants marked 'CRZ', including ISL6563CRZ-TK. It is not rated for industrial (-40°C to +85°C) operation - that specification applies only to the 'IRZ' suffix variants like ISL6563IRZ-TK.
Does the ISL6563CRZ-TK support dynamic VID changes during operation?
Yes, the ISL6563CRZ-TK supports dynamic VID changes. In VRM9 or AMD Hammer mode, it detects new VID codes after 12 consecutive matching cycles and transitions in 1-step increments every 4 cycles. In VRM10 mode, it validates changes after 3 readings and updates the reference immediately - though large steps may trigger overvoltage events. This behavior is fully documented in the FN9126 datasheet Section "Dynamic VID (VID-on-the-Fly)".
How does the ISL6563CRZ-TK implement current balancing between phases?
The ISL6563CRZ-TK performs automatic channel current balancing by sampling the rDS(ON) voltage across each lower MOSFET during conduction, converting it to a current via the ISEN resistor, and comparing each channel's current to the average. The error signal adjusts individual PWM pulse widths to force convergence. No external balancer IC or manual tuning is required - this is an integrated, self-correcting function detailed in the "Channel-Current Balance" section of FN9126.
What package type and lead count does the ISL6563CRZ-TK use?
The ISL6563CRZ-TK uses a 24-lead QFN package measuring 4 mm × 4 mm, compliant with JEDEC PUB95 MO-220 outline L24.4x4B. It features an exposed thermal pad on the underside for improved heat dissipation and is Pb-free/RoHS compliant. This package is shared across all ISL6563 variants (CRZ, IRZ) and is explicitly listed in the FN9126 datasheet "Ordering Information" table.
Can the ISL6563CRZ-TK start up into a pre-charged output capacitor?
Yes, the ISL6563CRZ-TK supports start-up into a pre-charged output, a feature explicitly called out in the FN9126 datasheet "Features" list and verified in functional testing. This capability ensures safe and reliable power sequencing in systems where output bulk capacitors retain residual voltage prior to controller enablement - critical for hot-swap and multi-rail sequencing applications.
ISL6563CRZ-TK Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 24-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Applications:
- Controller, Intel VRM9, VRM10, AMD Hammer Applications
- Voltage - Input:
- 5V ~ 12V
- Number of Outputs:
- 1
- Voltage - Output:
- 0.8V ~ 1.85V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-QFN (4x4)
ISL6563CRZ-TK FAQ
1.How can I place an order for ISL6563CRZ-TK through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL6563CRZ-TK 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 ISL6563CRZ-TK reliable?
The price and inventory of ISL6563CRZ-TK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL6563CRZ-TK is usually 5 days.
3.What payment methods are accepted for ISL6563CRZ-TK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL6563CRZ-TK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL6563CRZ-TK?
ISL6563CRZ-TK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL6563CRZ-TK 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 ISL6563CRZ-TK?
For technical support, including ISL6563CRZ-TK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL6563CRZ-TK requirements.
6.How does Aetrix verify that ISL6563CRZ-TK is sourced from the original manufacturer or authorized distributors?
All ISL6563CRZ-TK 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 ISL6563CRZ-TK meets industry standards.
7.What is the process for return or replacement of ISL6563CRZ-TK?
All ISL6563CRZ-TK units undergo pre-shipment inspection (PSI). If there is an issue with ISL6563CRZ-TK, 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 ISL6563CRZ-TK part is unused and in its original packaging.
Return procedure for ISL6563CRZ-TK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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