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Renesas RAA271082A4HNP#HA0
- Part No.:
- RAA271082A4HNP#HA0
- Manufacturer:
- Renesas
- Category:
- Voltage Regulators - Linear + Switching
- Package:
- 24-TFQFN Exposed Pad
- Datasheet:
-
RAA271082A4HNP#HA0.pdf
- Description:
- RAA271082 AUTOMOTIVE GRADE -1 PO
- Quantity:
- Payment:
- Shipping:
Inventory:5,876
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Product details
Overview
RAA271082A4HNP#HA0 from Renesas Electronics is an automotive ASIL B PMIC integrating three synchronous buck regulators and one low-dropout linear regulator. The device is designed for vehicle microcontroller, sensor, and embedded control modules that need several monitored rails from a compact 24-lead SCQFN package.
As part of the RAA271082 product family, RAA271082A4HNP#HA0 combines three buck outputs, one LDO output, I2C control, watchdog and reset support, 2MHz switching, spread-spectrum and synchronization-related functions, fault monitoring, and ASIL B system support. For engineers reviewing the RAA271082A4HNP#HA0 datasheet, RAA271082A4HNP#HA0 pinout, RAA271082A4HNP#HA0 application, or RAA271082A4HNP#HA0 equivalent, this device is widely used in automotive control modules, body electronics, sensor hubs, vehicle gateway modules, safety-related microcontroller boards, and compact embedded automotive power systems.
Technical Context
In automotive embedded systems, RAA271082A4HNP#HA0 operates as a multi-output PMIC for microcontroller and sensor rails. Three synchronous buck regulators provide efficient switching outputs, while the LDO supplies a lower-current auxiliary rail.
The I2C interface supports configuration and monitoring, while watchdog and reset functions help supervise the host microcontroller. The 2MHz switching architecture supports compact passives and controlled EMI planning.
RAA271082A4HNP#HA0 is commonly used when ASIL B power-management support, reset/watchdog monitoring, compact SCQFN packaging, and Renesas orderable configuration matching are required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Device Type | Automotive ASIL B PMIC with three buck regulators and one LDO. |
| Input Voltage Range | 2.7V to 5.5V PMIC input range. |
| Buck Outputs | Three synchronous buck regulators. |
| Switching Frequency | 2MHz switching operation. |
| LDO Output | One integrated LDO regulator output. |
| Control Interface | I2C interface with monitoring and configuration support. |
| Safety Functions | Watchdog, reset, fault monitoring, and ASIL B support. |
| Package | 24-lead 4mm x 4mm SCQFN package. |
Pinout & Package
The RAA271082A4HNP#HA0 pinout includes input supply pins, buck switch nodes, LDO output pins, I2C interface pins, reset/watchdog pins, enable and fault functions, and exposed-pad ground.
For PCB design, each buck switching loop should be compact, I2C and reset/watchdog traces should avoid switch-node noise, and the exposed pad should be tied to thermal ground copper.
| Pin / Function | PCB Design and Circuit Role |
|---|---|
| VIN | Input supply for PMIC regulator sections. |
| LX Buck Pins | Switching nodes for the three buck regulators. |
| Buck Outputs | Regulated switching rails for MCU and peripherals. |
| LDO OUT | Auxiliary low-dropout regulator output. |
| SCL / SDA | I2C communication interface. |
| RESET / WDI | Reset and watchdog supervision functions. |
| FAULT / INT | Fault or interrupt status output. |
| GND / Exposed Pad | Ground and thermal return path. |
Key Features
- Three buck regulators support multiple automotive rails.
- Integrated LDO provides auxiliary supply support.
- I2C interface enables configuration and diagnostics.
- Watchdog and reset functions support MCU supervision.
- ASIL B support targets safety-related modules.
- 24-lead SCQFN package supports compact automotive layouts.
Applications
| Automotive Control Modules | Sensor Hubs |
|---|---|
|
Use Scenario: Used in ECU and body-control boards. IC Role: Provides multiple supervised rails. Use Value: Supports ASIL-oriented power management. |
Use Scenario: Used near vehicle sensing electronics. IC Role: Supplies MCU and peripheral rails. Use Value: Improves integration. |
| Gateway Modules | Safety MCU Boards |
|
Use Scenario: Used in networked vehicle electronics. IC Role: Provides sequenced PMIC rails. Use Value: Supports reliable startup. |
Use Scenario: Used in safety-related embedded systems. IC Role: Combines regulation and supervision. Use Value: Reduces external monitoring components. |
Equivalent & Alternatives
When evaluating a RAA271082A4HNP#HA0 equivalent, engineers should compare rail configuration, ASIL target, watchdog/reset behavior, I2C interface, package, and Renesas orderable option.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS6594110BRWERQ1 | Texas Instruments automotive PMIC with more outputs and a different processor-oriented rail architecture. | Used in automotive processor platforms. | Compare rail count, safety features, package, and configuration. |
| LP87745101RXVRQ1 | Texas Instruments automotive PMIC with multiple buck/LDO rails and different diagnostics. | Used in automotive sensor and processor systems. | Compare output map, diagnostics, package, and qualification needs. |
Compared with TPS6594110BRWERQ1, RAA271082A4HNP#HA0 is a smaller Renesas ASIL B PMIC centered on three bucks and one LDO. RAA271082A4HNP#HA0 vs LP87745101RXVRQ1 selection depends on rail map, diagnostics, watchdog/reset requirements, and platform compatibility.
Quality
RAA271082A4HNP#HA0 should be sourced as original Renesas Electronics components through traceable supply channels. Quality checks may include package inspection, top-mark validation, solderability testing, rail output verification, protection behavior review, and thermal inspection.
Production validation should include startup behavior, output accuracy, load transients, thermal performance, protection response, and layout-sensitive switching behavior where applicable.
Availability
RAA271082A4HNP#HA0 available at Aetrix Electronics and is suitable for automotive control, body electronics, sensor, gateway, and safety-related embedded power systems.
Supply support may include volume procurement planning, scheduled delivery arrangements, traceable sourcing management, and long-term supply support for OEM, industrial electronics, automotive electronics, and embedded product programs. Sample and NPI supply support, as well as urgent in-stock supply support, can also be arranged for prototype builds, pilot runs, and time-critical production needs.
For production builds, confirming orderable option, package, safety documentation, lifecycle status, lead time, and sourcing continuity helps reduce procurement risk.
Manufacturer
Renesas Electronics is a semiconductor manufacturer supplying microcontrollers, analog and power devices, mixed-signal products, timing devices, and embedded processing solutions for automotive, industrial, infrastructure, and IoT applications.
The RAA271082 product family is a Renesas automotive ASIL B PMIC series with three synchronous buck regulators, one LDO, I2C control, watchdog, and reset functions for microcontroller-based vehicle systems.
FAQ
What is RAA271082A4HNP#HA0 used for?
RAA271082A4HNP#HA0 is used for automotive control modules, body electronics, sensor hubs, gateway modules, and safety-related microcontroller boards.
Where can I find the RAA271082A4HNP#HA0 datasheet download?
The RAA271082A4HNP#HA0 datasheet is available from Renesas and includes rail information, safety functions, package data, pinout, and application guidance.
What should be considered in RAA271082A4HNP#HA0 pinout design?
Designers should keep buck switching loops compact, route I2C/reset signals away from switch nodes, and connect the SCQFN exposed pad to thermal ground.
Does RAA271082A4HNP#HA0 support safety-related systems?
Yes. The RAA271082 family is described as an automotive ASIL B PMIC family.
What are common RAA271082A4HNP#HA0 equivalent solutions?
Common candidates include TPS6594110BRWERQ1 and LP87745101RXVRQ1 depending on rail count, safety requirements, package, and platform.
RAA271082A4HNP#HA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 24-TFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Topology:
- Step-Down (Buck) Synchronous (3), Linear (LDO) (1)
- Number of Outputs:
- 4
- Frequency - Switching:
- 2.2MHz
- Voltage/Current - Output 1:
- 2.8V ~ 5.05V, 1A
- Voltage/Current - Output 2:
- 0.85V ~ 3.3V, 1A
- Voltage/Current - Output 3:
- 0.85V ~ 3.3V, 1A
- w/LED Driver:
- No
- w/Supervisor:
- No
- w/Sequencer:
- Yes
- Voltage - Supply:
- 4V ~ 42V
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 24-SCQFN (4x4)
RAA271082A4HNP#HA0 FAQ
1.How can I place an order for RAA271082A4HNP#HA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for RAA271082A4HNP#HA0 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 RAA271082A4HNP#HA0 reliable?
The price and inventory of RAA271082A4HNP#HA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RAA271082A4HNP#HA0 is usually 5 days.
3.What payment methods are accepted for RAA271082A4HNP#HA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RAA271082A4HNP#HA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RAA271082A4HNP#HA0?
RAA271082A4HNP#HA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RAA271082A4HNP#HA0 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 RAA271082A4HNP#HA0?
For technical support, including RAA271082A4HNP#HA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RAA271082A4HNP#HA0 requirements.
6.How does Aetrix verify that RAA271082A4HNP#HA0 is sourced from the original manufacturer or authorized distributors?
All RAA271082A4HNP#HA0 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 RAA271082A4HNP#HA0 meets industry standards.
7.What is the process for return or replacement of RAA271082A4HNP#HA0?
All RAA271082A4HNP#HA0 units undergo pre-shipment inspection (PSI). If there is an issue with RAA271082A4HNP#HA0, 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 RAA271082A4HNP#HA0 part is unused and in its original packaging.
Return procedure for RAA271082A4HNP#HA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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