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Renesas ZSPM9000AI1R
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- ZSPM9000AI1R
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- Renesas
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ZSPM9000AI1R.pdf
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- IC REG PQFN
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Product details
Overview
ZSPM9000AI1R from Integrated Device Technology (IDT) is a fully integrated DrMOS power stage combining driver IC, high-side and low-side N-channel MOSFETs, and bootstrap Schottky diode in a single 6mm×6mm PQFN40 package. It delivers up to 50A peak output current, supports switching frequencies up to 1MHz, operates from 8–15V input, and integrates a 5V LDO for single-supply operation - optimized for high-density synchronous buck converters in server VRMs.
For engineers reviewing the ZSPM9000AI1R datasheet, ZSPM9000AI1R pinout, ZSPM9000AI1R application, or ZSPM9000AI1R equivalent, key selection criteria include tri-state PWM compatibility, adaptive dead-time control, thermal warning flag (THWN#), Skip Mode (SMOD#) support, and Intel® 4.0 DrMOS compliance for digital POL systems.
Technical Context
The ZSPM9000AI1R implements an adaptive gate drive architecture that senses VSWH and GL voltage transitions to dynamically adjust dead time - eliminating shoot-through while minimizing delay between high-side turn-off and low-side turn-on (tD_DEADOFF = 12ns) and vice versa (tD_DEADON = 10ns). Its internal 5V LDO (VCIN = 4.8–5.2V, load-regulated ±75mV) enables direct 12V rail operation without external bias supplies.
It features a tri-state PWM interface with defined voltage windows (VTRI_LO = 0.76–1.14V, VTRI_HI = 1.96–2.44V) and 200ns hold-off time (tD_HOLD-OFF), enabling phase shedding in multi-phase VRMs. The SMOD# input controls low-side gate disable for diode emulation mode, with 10ns propagation delay (tPD_SLGLL/tPD_SHGLH) and internal pull-up (10µA).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Output Current | 50A peak (limited by junction temperature at TjMAX = 150°C under natural convection) |
| Switching Frequency | Up to 1MHz - enables compact magnetics and high transient response in POL applications |
| Input Voltage Range | VIN = 3–15V, VDRV = 8–15V - supports standard 12V server/telecom rails with UVLO at 7.3V |
| Integrated LDO | 5V ±0.2V output (VCIN), 100mA short-circuit limit - powers internal logic from VDRV without auxiliary supply |
| Thermal Warning | Open-drain THWN# asserts at 150°C (TACT), resets at 135°C (TRST) - enables system-level thermal throttling |
| Package | 6mm × 6mm PQFN40 - copper-clip construction with θJPCB = 3.5°C/W for high-power density |
| PWM Interface | Tri-state 3.3V-compatible input with 16–30ns propagation delays - supports digital controller interoperability |
Pinout & Package
Package: 6mm × 6mm, 40-pin PQFN with exposed thermal pad (PGND-connected), RoHS-compliant green packaging. Thermal resistance θJPCB = 3.5°C/W enables 45A continuous operation at 25°C ambient with natural convection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | High-side power input | Connects to main DC bus (8–15V); feeds high-side MOSFET drain and BOOT capacitor charging path |
| PHASE | Switch node | Drives buck inductor; voltage swings between PGND and VIN; critical for EMI and layout |
| PGND | Power ground | Low-impedance return for high-current paths (HS/LS FET sources, BOOT diode cathode) |
| CGND | Control ground | Reference for logic inputs (PWM, DISB#, SMOD#, THWN#); separate from PGND to reduce noise coupling |
| PWM | Tri-state gate command | 3.3V-compatible input with defined tri-state window (0.76–1.14V / 1.96–2.44V); controls HS/LS switching sequence |
| DISB# | Driver disable | Active-low enable; pulls GH/GL LOW regardless of PWM state; internal 10µA pull-down |
| SMOD# | Skip Mode control | Active-low input disabling low-side gate drive for diode emulation; 10ns propagation delay |
| THWN# | Thermal warning flag | Open-drain output asserting at 150°C; requires external pull-up to VCIN; does not disable device |
| BOOT | Bootstrap supply | Connects to external capacitor; charges via internal Schottky diode when PHASE = PGND |
| VDRV | Driver supply | 8–15V input powering gate drivers and LDO; monitored by UVLO (7.3V threshold) |
Key Features
| Feature | Design Value |
|---|---|
| Intel® 4.0 DrMOS compliant | Fully meets specification for digital POL controllers including timing, voltage thresholds, and functional safety |
| Adaptive dead-time control | Monitors VSWH and GL to eliminate shoot-through without fixed delay - reduces conduction loss vs. static dead time |
| Integrated bootstrap Schottky diode | VF = 0.35V @ 10mA - minimizes boot capacitor charge loss and improves startup reliability |
| Tri-state PWM interface | Enables phase shedding in multi-phase VRMs using one signal - eliminates need for external logic or enable lines |
| Skip Mode (SMOD#) | Disables low-side gate during light load - prevents reverse inductor current and boosts efficiency at <20% load |
| Thermal warning with hysteresis | 15°C hysteresis (150°C trip / 135°C reset) - provides stable thermal feedback without chatter in dynamic loads |
Applications
| Server Voltage Regulators | Telecom Base Station POL |
|---|---|
Use Scenario: 12V-to-1.0V conversion for CPU/GPU cores in dual-socket servers with >400W per phase. IC Role / Device Role / Timing Role: Primary DrMOS power stage delivering 45A average current per phase at 500kHz–1MHz switching frequency. Use Value: 72% board space reduction vs. discrete solutions and >93% peak efficiency enable higher power density and lower cooling cost. |
Use Scenario: Point-of-load regulation for FPGA, DSP, and RF transceiver rails in macrocell base stations. IC Role / Device Role / Timing Role: High-reliability DrMOS stage supporting -40°C to +125°C ambient with THWN# thermal monitoring. Use Value: Integrated LDO and adaptive dead time ensure stable operation across wide input voltage (8–15V) and load transients. |
| High-Performance Gaming Motherboards | Industrial Edge Computing Systems |
Use Scenario: Multi-phase VRM for overclocked desktop CPUs requiring fast transient response and phase shedding. IC Role / Device Role / Timing Role: Tri-state PWM input enables seamless phase activation/deactivation synchronized with ZSPM1000 controller. Use Value: 200ns tri-state hold-off time and sub-30ns propagation delays maintain tight timing control during dynamic phase scaling. |
Use Scenario: Compact 12V-to-3.3V/5V POL for fanless industrial PCs operating in harsh thermal environments. IC Role / Device Role / Timing Role: Thermally robust DrMOS stage with 150°C thermal warning and copper-clip PQFN package for long-term reliability. Use Value: Eliminates snubber circuits due to low switch ringing - reduces component count and improves EMI performance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar DrMOS power stage applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IR35201MTRPBF | 40-pin QFN, 50A rating, 1MHz max, but lacks integrated bootstrap diode and THWN# flag | Requires external bootstrap diode and thermal monitoring circuitry - increases BOM and layout complexity | Choose when legacy IR design reuse is prioritized over integration and thermal visibility |
| ISL99140IRZ-T | 40-pin QFN, 60A rating, includes THWN#, but uses non-tri-state PWM and no SMOD# input | Supports phase shedding only via dedicated enable pins - less flexible for digital controller synchronization | Choose for higher current headroom where skip mode and tri-state PWM are not required |
Compared with IR35201MTRPBF and ISL99140IRZ-T, the ZSPM9000AI1R uniquely combines tri-state PWM, SMOD#, integrated bootstrap diode, and THWN# in a single Intel 4.0-compliant package - reducing system-level component count and enabling tighter digital control loop integration.
Availability
ZSPM9000AI1R is available at Aetrix Electronics and suitable for server VRMs, telecom base station POL supplies, and high-performance gaming motherboard designs requiring stable component supply, thermal-aware power delivery, and digital controller interoperability.
Supply support for ZSPM9000AI1R 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
Integrated Device Technology (IDT) was a fabless semiconductor company specializing in timing, memory interface, and power management ICs before its acquisition by Renesas in 2019. IDT pioneered DrMOS and digital POL controller architectures.
The ZSPM9000AI1R belongs to IDT's ZSPM DrMOS family, engineered specifically for high-efficiency, high-frequency, digitally controlled point-of-load converters in datacenter, telecom, and computing infrastructure.
FAQ
What is the maximum continuous output current rating for ZSPM9000AI1R?
The ZSPM9000AI1R is rated for 45A average output current at 350kHz switching frequency, 12V input, and 1.0V output under natural convection cooling at 25°C ambient. This rating assumes use of the official evaluation board layout and is thermally limited by TjMAX = 150°C. At 1MHz, the continuous rating drops to 42A due to increased switching losses.
Does ZSPM9000AI1R require an external bootstrap diode?
No, ZSPM9000AI1R integrates a bootstrap Schottky diode with VF = 0.35V at 10mA. This eliminates the need for an external diode and simplifies PCB layout. The internal diode charges the external BOOT capacitor during the low-side conduction phase, ensuring reliable high-side gate drive across the full operating range.
How does the tri-state PWM function work on ZSPM9000AI1R?
The ZSPM9000AI1R tri-state PWM input recognizes three voltage states: logic HIGH (>1.96V), logic LOW (<1.14V), and tri-state (0.76–1.14V or 1.96–2.44V). When held within either tri-state window for ≥200ns (tD_HOLD-OFF), both GH and GL outputs are forced LOW - enabling phase shedding without additional control signals. Exiting tri-state resumes normal PWM-controlled operation.
Can ZSPM9000AI1R operate from a single 12V supply?
Yes, ZSPM9000AI1R incorporates an internal 12V-to-5V linear regulator (LDO) that powers all control circuitry. With VDRV = 12V, the LDO delivers 5.0V ±0.2V at up to 100mA, enabling full functionality - including PWM decoding, thermal monitoring, and gate driving - without auxiliary bias supplies.
What is the purpose of the SMOD# pin on ZSPM9000AI1R?
The SMOD# (Skip Mode) pin on ZSPM9000AI1R disables the low-side MOSFET gate drive when pulled LOW, forcing diode emulation mode. This prevents reverse inductor current during light-load conditions, improving efficiency below ~20% load. The feature has 10ns propagation delay and internal 10µA pull-up, allowing direct connection to compatible digital controllers like the ZSPM1000.
ZSPM9000AI1R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- *
- Package/Case:
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- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
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ZSPM9000AI1R FAQ
1.How can I place an order for ZSPM9000AI1R through Aetrix?
Please submit a Request for Quotation (RFQ) for ZSPM9000AI1R 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 ZSPM9000AI1R reliable?
The price and inventory of ZSPM9000AI1R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZSPM9000AI1R is usually 5 days.
3.What payment methods are accepted for ZSPM9000AI1R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZSPM9000AI1R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZSPM9000AI1R?
ZSPM9000AI1R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZSPM9000AI1R 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 ZSPM9000AI1R?
For technical support, including ZSPM9000AI1R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZSPM9000AI1R requirements.
6.How does Aetrix verify that ZSPM9000AI1R is sourced from the original manufacturer or authorized distributors?
All ZSPM9000AI1R 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 ZSPM9000AI1R meets industry standards.
7.What is the process for return or replacement of ZSPM9000AI1R?
All ZSPM9000AI1R units undergo pre-shipment inspection (PSI). If there is an issue with ZSPM9000AI1R, 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 ZSPM9000AI1R part is unused and in its original packaging.
Return procedure for ZSPM9000AI1R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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