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Renesas RAA221320RGNP#HB0
- Part No.:
- RAA221320RGNP#HB0
- Manufacturer:
- Renesas
- Category:
- Full Half-Bridge (H Bridge) Drivers
- Package:
- 25-PowerWFQFN
- Datasheet:
-
RAA221320RGNP#HB0.pdf
- Description:
- SMART POWER STAGE GEN2 (SPS) MOD
- Quantity:
- Payment:
- Shipping:
Inventory:4,778
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Product details
Overview
RAA221320RGNP#HB0 from Renesas Electronics is a 20A Smart Power Stage (SPS) with integrated high-accuracy current and temperature monitors, designed for use with ISL68xxx/69xxx digital multiphase controllers in VRM/VRD applications. It supports 3.0–16V input, delivers 20A DC output, features ±3% current monitoring accuracy, 8mV/°C temperature sensing, and operates up to 1.5MHz switching frequency.
For engineers reviewing the RAA221320RGNP#HB0 datasheet, RAA221320RGNP#HB0 pinout, RAA221320RGNP#HB0 application, or RAA221320RGNP#HB0 equivalent, key selection criteria include tri-state PWM compatibility, downslope current sensing architecture, integrated fault reporting (FAULT#, TMON, IMON), thermal performance in 4x5 PQFN, and elimination of external DCR sensing networks.
Technical Context
The RAA221320RGNP#HB0 implements a synchronous buck power stage with integrated high-side and low-side MOSFETs, gate drivers, and analog monitoring circuitry. Its downslope current sensing enables accurate phase-current reconstruction without DCR compensation, while the 3.3V-compatible tri-state PWM interface ensures robust handshake with Renesas digital multiphase controllers during startup and fault conditions.
Fault protection includes VCC UVLO, shorted HFET detection, overcurrent, and overtemperature shutdown with OT flag generation. The open-drain FAULT# pin provides system-level fault coordination, and the REFIN input enables precise current monitor calibration across load and temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Continuous Current | 20A DC - supports high-density CPU/GPU core rail delivery without external current sharing |
| Input Voltage Range | +3.0V to +16V - compatible with 5V, 12V, and hybrid intermediate bus architectures |
| Current Monitor Accuracy | ±3% - enables tight current-loop control and accurate phase balancing in multiphase systems |
| Temperature Monitor Slope | 8mV/°C - provides linear, calibrated die-temperature feedback for thermal management |
| Max Switching Frequency | 1.5MHz - allows compact output filter design and fast transient response |
| Package | 25-lead 4×5mm PQFN - thermally enhanced footprint with exposed thermal pad for <1.5°C/W θJA |
| PWM Interface | 3.3V tri-state - prevents shoot-through during controller reset and supports dynamic phase shedding |
Pinout & Package
RAA221320RGNP#HB0 is housed in a 25-lead, 4mm × 5mm, 0.5mm pitch PQFN package with an exposed thermal pad (EP). The package supports high-power density mounting and efficient heat dissipation via bottom-side thermal vias.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | High-side MOSFET drain supply | Primary input power connection; rated for 16V max, feeds internal power rails and HS FET |
| PHASE | Switch node | Connects to output inductor; carries high di/dt switching waveform; critical for EMI layout |
| BOOT | High-side gate driver bootstrap supply | Provides floating voltage for HS gate drive; requires external 0.1µF ceramic capacitor to PHASE |
| LOUT | Low-side MOSFET source | Power ground return path for LS FET; connects directly to PCB ground plane |
| GND | Analog and power ground | Common reference for IMON, TMON, and internal logic; must be tied to LOUT near EP |
| PWM | Tri-state PWM input | 3.3V-compatible control signal; high = on, low = off, high-Z = disable/fault hold |
| FAULT# | Open-drain fault indicator | Active-low signal pulled low during UVLO, overtemp, overcurrent, or HFET short |
| IMON | Analog current monitor output | 0–1V output proportional to inductor current; ±3% accuracy referenced to REFIN |
| REFIN | Current monitor reference input | Accepts external 0.6V reference to calibrate IMON gain and offset across temperature |
| TMON | Analog temperature monitor output | 8mV/°C linear output; used for real-time die temperature tracking and OT flag generation |
| EN | Enable input | Active-high enable; must be asserted after VCC stabilization to prevent premature startup |
| VCC | Bias supply input | Internal LDO input; accepts 3.0–5.5V; powers gate drivers and monitoring circuits |
| PVCC | High-side gate driver supply | Optional external 5V supply to improve HS drive strength and reduce switching losses |
Key Features
| Feature | Design Value |
|---|---|
| Integrated current & temperature monitors | Eliminates need for external DCR sense resistors and thermal NTCs, reducing BOM count and layout area |
| Tri-state PWM interface | Enables seamless phase shedding and safe controller-SiP handshaking during reset or fault recovery |
| Downslope current sensing | Provides accurate inductor current measurement during low-side conduction, independent of DCR drift |
| Comprehensive fault protection | Hardware-level responses to UVLO, HFET short, overcurrent, and overtemperature-no firmware dependency |
| Thermally optimized 4×5 PQFN | Enables >20A operation in <20mm² PCB area with junction-to-board thermal resistance <1.5°C/W |
Applications
| Server Core Regulators | GPU VRMs |
|---|---|
Use Scenario: High-current, multi-phase voltage regulation for x86 and ARM-based server CPUs requiring tight voltage tolerance and fast transient response. IC Role / Device Role / Timing Role: Smart Power Stage delivering 20A per phase with real-time current and temperature telemetry to ISL69269 controller. Use Value: Enables precise per-phase current balancing and thermal derating without external sensing components, improving power efficiency by up to 1.2% at 50A total load. | Use Scenario: Compact, high-frequency VRM for discrete and integrated GPUs in AI accelerators and data center graphics cards. IC Role / Device Role / Timing Role: SPS providing synchronized 1.5MHz switching and downslope current feedback to ISL68228 controller for dynamic phase control. Use Value: Reduces output capacitance requirement by 30% versus discrete solutions while maintaining <±5mV load regulation under 10A/µs transients. |
| Cloud Computing POL Converters | Gaming Console Memory Rails |
Use Scenario: Point-of-load conversion for ASICs and FPGAs in hyperscale cloud infrastructure where board space and thermal density are constrained. IC Role / Device Role / Timing Role: Integrated power stage with FAULT# reporting to upstream PMBus controller for predictive maintenance and fault logging. Use Value: Supports scheduled firmware updates and hot-swap capability via hardware fault isolation-reducing unplanned downtime by enabling graceful phase disable. | Use Scenario: High-efficiency memory sub-regulator for GDDR6 and LPDDR5 supplies in next-gen video game consoles with strict acoustic and thermal limits. IC Role / Device Role / Timing Role: 20A SPS operating at 1.2MHz with TMON output feeding thermal management MCU for dynamic frequency scaling. Use Value: Maintains memory rail stability under burst loads while limiting die temperature to <105°C-preventing thermal throttling during sustained gameplay. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar smart power stage applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP2960GQZ | 18A rating, 4.5–16V input, no REFIN input, ±5% IMON accuracy, 1.2MHz max fSW | Lacks trimmable current monitor; less suitable for precision phase balancing in >4-phase systems | Preferred for cost-sensitive, lower-accuracy POL designs where REFIN calibration is unnecessary |
| ISL99390IRZ | 25A rating, 3–20V input, 1.5MHz fSW, ±2.5% IMON, but no integrated TMON output | Requires external temperature sensor for thermal loop closure; higher peak current capability | Selected when higher current headroom is needed and separate thermal monitoring is already implemented |
Compared with MP2960GQZ and ISL99390IRZ, the RAA221320RGNP#HB0 uniquely combines ±3% current accuracy with factory-calibrated 8mV/°C TMON and REFIN-adjustable IMON-enabling single-chip closed-loop thermal and current telemetry without additional analog components.
Availability
RAA221320RGNP#HB0 is available at Aetrix Electronics and suitable for server CPU VRMs, GPU power delivery, and high-density cloud computing POL converters requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for RAA221320RGNP#HB0 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 trusted embedded design innovation, with expertise in microcontrollers, analog, power, and connectivity solutions for automotive, industrial, and datacenter markets.
The RAA221320RGNP#HB0 belongs to Renesas' Smart Power Stage family, engineered specifically for digital multiphase DC/DC systems requiring integrated telemetry, fault resilience, and minimal PCB footprint in high-performance computing power delivery.
FAQ
What is the maximum continuous output current supported by the RAA221320RGNP#HB0?
The RAA221320RGNP#HB0 supports 20A continuous DC output current under typical thermal conditions with proper PCB layout and airflow. This rating assumes operation within the specified input voltage range (3.0–16V), junction temperature ≤125°C, and use of the recommended 4-layer board with thermal vias under the exposed pad. Derating applies above 85°C ambient or with restricted airflow.
Does the RAA221320RGNP#HB0 require external current sense resistors?
No, the RAA221320RGNP#HB0 does not require external current sense resistors. It implements integrated downslope current sensing with ±3% accuracy and includes an IMON analog output and REFIN calibration input. This eliminates the need for DCR sensing networks and associated compensation circuitry, reducing component count and layout complexity.
How does the RAA221320RGNP#HB0 communicate temperature data to the controller?
The RAA221320RGNP#HB0 communicates die temperature via its TMON pin, which outputs a linear 8mV/°C analog voltage referenced to GND. This signal can be read directly by compatible controllers such as the ISL68228 or ISL69269, or digitized by an external ADC. An overtemperature (OT) flag is also generated internally when junction temperature exceeds the threshold.
What fault conditions trigger the FAULT# pin on the RAA221320RGNP#HB0?
The FAULT# pin on the RAA221320RGNP#HB0 is asserted low during VCC undervoltage lockout (UVLO), high-side FET short-circuit, overcurrent event, or overtemperature condition. It remains latched low until the fault clears and EN is toggled or VCC recovers. This open-drain signal interfaces directly with ISL68xxx/69xxx controllers to initiate safe shutdown or phase disable.
Is the RAA221320RGNP#HB0 compatible with non-Renesas multiphase controllers?
The RAA221320RGNP#HB0 is fully characterized and validated with Renesas ISL68xxx/69xxx digital multiphase controllers. While its 3.3V tri-state PWM interface and analog monitor outputs may allow integration with other controllers, timing margins, fault response behavior, and calibration dependencies (e.g., REFIN usage) are not guaranteed outside the Renesas ecosystem. System validation is required for third-party controller use.
RAA221320RGNP#HB0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 25-PowerWFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Half Bridge
- Applications:
- DC-DC Converters
- Interface:
- -
- Load Type:
- Inductive
- Technology:
- NMOS
- Rds On (Typ):
- -
- Current - Output / Channel:
- 20A
- Current - Peak Output:
- -
- Voltage - Supply:
- 3V ~ 16V
- Voltage - Load:
- 3V ~ 16V
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Features:
- -
- Fault Protection:
- Current Limiting, Over Temperature, Shoot-Through, Short Circuit, UVLO
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 25-PQFN (4x5)
RAA221320RGNP#HB0 FAQ
1.How can I place an order for RAA221320RGNP#HB0 through Aetrix?
Please submit a Request for Quotation (RFQ) for RAA221320RGNP#HB0 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 RAA221320RGNP#HB0 reliable?
The price and inventory of RAA221320RGNP#HB0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RAA221320RGNP#HB0 is usually 5 days.
3.What payment methods are accepted for RAA221320RGNP#HB0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RAA221320RGNP#HB0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RAA221320RGNP#HB0?
RAA221320RGNP#HB0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RAA221320RGNP#HB0 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 RAA221320RGNP#HB0?
For technical support, including RAA221320RGNP#HB0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RAA221320RGNP#HB0 requirements.
6.How does Aetrix verify that RAA221320RGNP#HB0 is sourced from the original manufacturer or authorized distributors?
All RAA221320RGNP#HB0 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 RAA221320RGNP#HB0 meets industry standards.
7.What is the process for return or replacement of RAA221320RGNP#HB0?
All RAA221320RGNP#HB0 units undergo pre-shipment inspection (PSI). If there is an issue with RAA221320RGNP#HB0, 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 RAA221320RGNP#HB0 part is unused and in its original packaging.
Return procedure for RAA221320RGNP#HB0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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