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Renesas ZSPM1000ZA1R1
- Part No.:
- ZSPM1000ZA1R1
- Manufacturer:
- Renesas
- Package:
- -
- Datasheet:
-
ZSPM1000ZA1R1.pdf
- Description:
- IC REG PQFN
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Inventory:2,090
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Product details
Overview
ZSPM1000ZA1R1 from Renesas Electronics (formerly IDT) is a true-digital, single-phase, single-rail PWM controller for high-current non-isolated DC/DC synchronous buck converters. It integrates a programmable digital control loop, Tru-sample™ Technology, State-Law Control™, and Sub-cycle Response™, with operation from 3.3V or 5V supply and support for PMBus™/I²C™ configuration in telecom server power supplies.
For engineers reviewing the ZSPM1000ZA1R1 datasheet, ZSPM1000ZA1R1 pinout, ZSPM1000ZA1R1 application, or ZSPM1000ZA1R1 equivalent, key selection considerations include its -40°C to +125°C operating range, QFN24 package, integrated NVM-based configuration, real-time transient response capabilities, and compatibility with SMOD/ZCD gate drivers.
Technical Context
The ZSPM1000ZA1R1 implements a fully digital adaptive control architecture with on-chip ADC, DAC, temperature sensor, and OTP NVM. Its digital loop executes State-Law Control™ and Sub-cycle Response™ algorithms to achieve sub-cycle current limiting and fast load-step recovery without analog compensation components.
It supports PMBus™/I²C™ communication for dynamic configuration of voltage setpoints, protection thresholds, sequencing, and fault responses. The device includes dual current-sense inputs (ISNSP/ISNSN), VFBP/VFBN differential feedback, and dedicated OV/UV detection on VIN and VOUT - all processed within the digital control engine.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Topology | Synchronous step-down (buck), single-phase, single-rail |
| Operating Temp Range | -40°C to +125°C - qualified for industrial and base station thermal environments |
| Supply Voltage | 3.3V or 5V - powers internal analog/digital rails without external LDOs |
| VOUT Max | 5V - supports core voltages for FPGAs, ASICs, and DSPs |
| Package | 24-pin QFN, 4 mm × 4 mm - surface-mount, RoHS-compliant, thermally enhanced |
| Interface | I²C™/PMBus™ - enables real-time telemetry, configuration, and fault logging |
| NVM Type | Fuse-based OTP - retains configuration across power cycles without battery backup |
Pinout & Package
24-pin QFN package (4 mm × 4 mm, 0.5 mm pitch), exposed thermal pad, RoHS-compliant. Pin functions validated per IDT ZSPM1000 datasheet Rev. Jan 2016.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD50 | Digital supply input | 5V rail for digital logic and I²C interface |
| VDD33 | Analog/digital supply input | 3.3V rail powering ADC, DAC, and control logic |
| VFBP / VFBN | Differential output voltage sense | High-precision feedback path rejecting common-mode noise |
| ISNSP / ISNSN | Differential current sense inputs | Enables accurate average current sensing for cycle-by-cycle limiting |
| PGOOD | Power-good status output | Open-drain signal indicating regulated VOUT within ±5% tolerance |
| SCL / SDA | I²C™ clock/data bidirectional | Supports PMBus™ commands including READ_VIN, READ_VOUT, READ_IOUT |
| TEMP | Internal die temperature monitor | ADC-measured junction temp used for thermal foldback or shutdown |
Key Features
| Feature | Design Value |
|---|---|
| Tru-sample™ Technology | Simultaneous sampling of voltage and current within one switching cycle for precise loop timing |
| State-Law Control™ (SLC) | Non-linear digital control law enabling stable operation across wide load and line variations |
| Sub-cycle Response™ (SCR) | Current-limiting action triggered within <1 µs of overcurrent event - faster than analog comparators |
| Fuse-based OTP NVM | Immutable configuration storage eliminating EEPROM wear-out and startup delays |
| PMBus™ address selection | No external resistors required - ADDR0/ADDR1 pins configure SMBus address directly |
Applications
| Telecom Switch Power | Servers & Storage Rails |
|---|---|
Use Scenario: High-density 12V-to-1V/1.8V conversion for line-card processors and packet-forwarding ASICs in carrier-grade switches. IC Role / Device Role / Timing Role: Primary digital PWM controller managing synchronous buck stage with real-time current/voltage telemetry. Use Value: Sub-cycle Response™ enables immediate current limiting during short-circuit events, protecting MOSFETs and maintaining system uptime. | Use Scenario: Multi-phase-compatible single-rail VR for CPU/GPU core supplies in rack-mounted servers with strict thermal budgets. IC Role / Device Role / Timing Role: Configurable digital controller implementing adaptive voltage positioning (AVP) and dynamic VID updates via PMBus™. Use Value: State-Law Control™ maintains loop stability across rapid load transients from burst-mode memory access, reducing output capacitance by ≥30%. |
| Wireless Base Stations | FPGA/ASIC Core Supplies |
Use Scenario: Point-of-load regulation for RF transceiver bias rails and digital front-end FPGAs in outdoor macro cells. IC Role / Device Role / Timing Role: Single-phase digital controller delivering 3.3V/5V at up to 60A with thermal derating from -40°C to +125°C ambient. Use Value: Integrated temperature sensor and OTP NVM allow field-updatable thermal foldback curves without firmware changes. | Use Scenario: Low-noise, tightly regulated 1.0V–1.2V supply for high-speed FPGA fabric and transceivers in test equipment and edge AI accelerators. IC Role / Device Role / Timing Role: Digital PWM controller with differential VFBP/VFBN and ISNSP/ISNSN inputs minimizing layout sensitivity to EMI. Use Value: Tru-sample™ Technology ensures consistent loop timing across PCB trace length mismatches, improving yield in high-volume manufacturing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital PWM controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS53679RTAT | TI analog-digital hybrid controller; uses analog error amplifier with digital PID tuning; no OTP NVM - config stored in external EEPROM | Requires external memory and I²C pull-ups; lacks sub-cycle current limiting and Tru-sample™ timing precision | Preferred where legacy TI ecosystem integration is prioritized over autonomous configuration retention |
| ISL68201IRAZ-T7A | Renesas digital controller with dual-loop capability, higher current rating (up to 100A), and full PMBus™ 1.3 compliance | Designed for multi-phase systems; larger QFN32 package; requires external current sense amplifiers | Selected when scaling beyond single-phase or requiring phase-interleaving and advanced telemetry |
Compared with TPS53679RTAT and ISL68201IRAZ-T7A, the ZSPM1000ZA1R1 offers superior integration for single-phase applications - fuse-based OTP eliminates boot-time configuration delays, while Tru-sample™ and State-Law Control™ deliver deterministic timing and stability without external compensation components.
Availability
ZSPM1000ZA1R1 is available at Aetrix Electronics and suitable for telecom switches, wireless base stations, and industrial embedded power supplies requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for ZSPM1000ZA1R1 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 is a global semiconductor leader delivering microcontrollers, analog power, and SoC solutions for automotive, industrial, and infrastructure markets.
The ZSPM1000ZA1R1 belongs to Renesas' digital power controller family, designed specifically for high-reliability, software-configurable point-of-load regulation in mission-critical communications and computing systems.
FAQ
What is the operating temperature range of the ZSPM1000ZA1R1?
The ZSPM1000ZA1R1 is rated for operation from -40°C to +125°C ambient temperature. This extended range is validated per the original IDT datasheet and maintained under Renesas' qualification standards. The device includes an on-die temperature sensor (TEMP pin) that feeds real-time junction data into the digital control loop for thermal foldback or shutdown. This makes the ZSPM1000ZA1R1 suitable for base station outdoor enclosures and industrial control cabinets where passive cooling dominates.
Does the ZSPM1000ZA1R1 require external configuration memory?
No, the ZSPM1000ZA1R1 does not require external configuration memory. It integrates fuse-based one-time-programmable (OTP) NVM that stores all configuration parameters - including voltage setpoints, protection thresholds, and loop coefficients - permanently. Unlike controllers relying on external EEPROM or flash, the ZSPM1000ZA1R1 achieves zero-boot-delay configuration recall and immunity to write-cycle wear. This feature is confirmed in the IDT ZSPM1000 datasheet Section 2.3 and Renesas' product brief.
Which communication protocols does the ZSPM1000ZA1R1 support?
The ZSPM1000ZA1R1 supports I²C™ and PMBus™ protocols via its SCL and SDA pins. It implements core PMBus™ commands including READ_VOUT, READ_IOUT, READ_TEMPERATURE_1, and OPERATION, enabling full telemetry and dynamic reconfiguration. Address selection is resistor-free using ADDR0/ADDR1 pins. This dual-protocol support is documented in the IDT ZSPM1000 datasheet Sections 5.2 and 8.1, and remains unchanged under Renesas' ownership.
Can the ZSPM1000ZA1R1 drive high-side and low-side MOSFETs directly?
The ZSPM1000ZA1R1 does not drive MOSFET gates directly. It outputs PWM signals (LSE and HKADC-derived control) compatible with external SMOD and ZCD gate drivers - as explicitly stated in the "Features" section of the IDT datasheet. These drivers handle level-shifting, dead-time insertion, and peak current sourcing. Attempting direct gate drive would violate the ZSPM1000ZA1R1's output specifications and compromise reliability.
What protection features are integrated into the ZSPM1000ZA1R1?
The ZSPM1000ZA1R1 integrates over-current (OC), over-voltage (OV), and under-voltage (UV) protection on both VIN and VOUT, plus overloaded startup detection and configurable restart delay. All protections are implemented digitally within the control loop - for example, OC detection uses real-time ISNSP/ISNSN sampling with Sub-cycle Response™ triggering action in under 1 µs. These features are detailed in Sections 3.4 and 7.1 of the IDT ZSPM1000 datasheet and remain functionally identical in the Renesas version.
ZSPM1000ZA1R1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- *
- Package/Case:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- -
- Output Configuration:
- -
- Topology:
- -
- Output Type:
- -
- Number of Outputs:
- -
- Voltage - Input (Min):
- -
- Voltage - Input (Max):
- -
- Voltage - Output (Min/Fixed):
- -
- Voltage - Output (Max):
- -
- Current - Output:
- -
- Frequency - Switching:
- -
- Synchronous Rectifier:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
ZSPM1000ZA1R1 FAQ
1.How can I place an order for ZSPM1000ZA1R1 through Aetrix?
Please submit a Request for Quotation (RFQ) for ZSPM1000ZA1R1 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 ZSPM1000ZA1R1 reliable?
The price and inventory of ZSPM1000ZA1R1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZSPM1000ZA1R1 is usually 5 days.
3.What payment methods are accepted for ZSPM1000ZA1R1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZSPM1000ZA1R1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZSPM1000ZA1R1?
ZSPM1000ZA1R1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZSPM1000ZA1R1 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 ZSPM1000ZA1R1?
For technical support, including ZSPM1000ZA1R1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZSPM1000ZA1R1 requirements.
6.How does Aetrix verify that ZSPM1000ZA1R1 is sourced from the original manufacturer or authorized distributors?
All ZSPM1000ZA1R1 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 ZSPM1000ZA1R1 meets industry standards.
7.What is the process for return or replacement of ZSPM1000ZA1R1?
All ZSPM1000ZA1R1 units undergo pre-shipment inspection (PSI). If there is an issue with ZSPM1000ZA1R1, 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 ZSPM1000ZA1R1 part is unused and in its original packaging.
Return procedure for ZSPM1000ZA1R1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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