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Renesas RAA2116514GNP#MA0
- Part No.:
- RAA2116514GNP#MA0
- Manufacturer:
- Renesas
- Package:
- 28-VFQFN Exposed Pad
- Datasheet:
-
RAA2116514GNP#MA0.pdf
- Description:
- IC REG BUCK ADJ 5A 28QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,923
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Product details
Overview
RAA2116514GNP#MA0 from Renesas Electronics is a 60V, 5A synchronous buck regulator with Constant On-Time (COT) control, supporting 4.5V–60V input and adjustable 0.8V–Dmax×VIN output. It delivers 89.5% peak efficiency at 24V→3.3V/5A, features 19µA quiescent current at 24V, and integrates high-side (90mΩ) and low-side (37mΩ) MOSFETs for industrial PoL and battery-powered systems.
For engineers reviewing the RAA2116514GNP#MA0 datasheet, RAA2116514GNP#MA0 pinout, RAA2116514GNP#MA0 application, or RAA2116514GNP#MA0 equivalent, key selection criteria include its COT-based load-dependent frequency scaling, programmable soft-start (2ms fixed or capacitor-adjustable), dual-direction overcurrent protection, integrated 3.3V LDO with EBIAS bypass, and comprehensive fault coverage including HSOC, LSOC, OVP, UVP, and OTP.
Technical Context
The RAA2116514GNP#MA0 implements a Constant On-Time modulator where on-time is set by the PVIN-to-SET resistor and internal 100pF capacitor; switching frequency varies inversely with load to reduce light-load losses. Diode Emulation Mode (DEM) is enabled automatically with internal compensation, while external RC on COMP forces continuous conduction mode.
Its protection architecture includes valley current limiting (6–9A), high-side overcurrent (10–12A), bidirectional low-side current sensing (±2.9A to ±7.2A), output overvoltage (116–128% VREF), undervoltage (65–74% VREF), and thermal shutdown at 153°C with 30°C hysteresis - all implemented in hardware without microcontroller dependency.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5V to 60V - supports wide industrial and automotive battery inputs including 48V PoL and 12V/24V legacy rails. |
| Output Current | 0A to 5A continuous - sufficient for FPGA I/O, PLC logic, and robotics motor control bias supplies. |
| Feedback Reference | 0.800V ±0.6% - enables precise 3.3V output with 1% resistor divider or internal 3.3V default via FB-to-AVCC tie. |
| Quiescent Current | 19µA at 24V - extends battery life in always-on industrial sensors and vending machines. |
| Switching Frequency | Load-dependent, ~565kHz at 5A/24V → drops at light load - reduces switching loss without requiring external frequency programming. |
| Thermal Resistance | θJA = 35°C/W - requires minimal PCB copper area for thermal relief in compact 4mm×5mm QFN layouts. |
| Protection Features | HSOC, LSOC, NOC, OVP, UVP, UVLO, OTP - hardware-level fault response with hiccup-mode recovery and deglitch filtering. |
Pinout & Package
RAA2116514GNP#MA0 is housed in a thermally enhanced 28-lead 4mm × 5mm QFN package with exposed thermal pad (EPAD) connected to PGND. The package supports high-current routing via multiple PHASE and PGND pins and enables efficient heat dissipation through board-level vias to internal ground planes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PGND (Pins 1,2,20,21,28) | Power Ground Return | Low-impedance return path for high-frequency switch node current; must be tied directly to EPAD and system power ground plane. |
| PVIN (Pins 3,4,18,19) | Main Input Supply | Accepts 4.5V–60V input; requires local ceramic decoupling (≥10µF) placed adjacent to pins for transient suppression. |
| PHASE (Pins 23–27) | Switch Node Output | Connects to inductor and bootstrap capacitor; carries full switching current and voltage swing up to 60V + boot boost. |
| BOOT (Pin 22) | Bootstrap Gate Drive Supply | Drives high-side FET gate; requires 0.1µF ceramic capacitor between BOOT and PHASE for charge replenishment. |
| EN (Pin 5) | Enable Control Input | Accurate ±5% threshold (1.5V typ); supports sequencing with external pull-up/down and hysteresis for noise immunity. |
| FB (Pin 11) | Voltage Feedback Input | Senses output via resistor divider; tied to AVCC for internal 3.3V regulation - eliminates external feedback network. |
| SS (Pin 9) | Soft-Start Timing | Sources 5µA to external capacitor; 0.8V threshold triggers regulation start - enables 2ms fixed or programmable ramp time. |
| V3_DLY (Pin 12) | Startup/Shutdown Delay | Sources 5µA to delay capacitor; 1.2V threshold controls sequencing window before soft-start or after EN deassertion. |
Key Features
| Feature | Design Value |
|---|---|
| Constant On-Time (COT) Control | Enables fast transient response and automatic frequency scaling - no external loop compensation required for stable operation across load range. |
| Diode Emulation Mode (DEM) | Reduces light-load conduction loss by disabling low-side FET during off-time - improves efficiency below 100mA without audible noise. |
| Integrated Dual-Path LDO | Generates 3.3V PVCC from PVIN or external EBIAS (3.15–12V); bypass capability cuts controller power dissipation in high-VIN applications. |
| Programmable Sequencing | V3_DLY pin provides independent startup/shutdown delay timing - simplifies multi-rail power sequencing in PLCs and robotics controllers. |
| Hardware-Based Fault Protection | Real-time monitoring of HSOC, LSOC, NOC, OVP/UVP, UVLO, and OTP with deglitch filtering - ensures fail-safe behavior without firmware intervention. |
Applications
| Industrial Power Supplies | 48V Industrial PoL |
|---|---|
Use Scenario: DIN-rail mounted power modules supplying 3.3V/5V to PLC I/O cards and fieldbus interfaces. IC Role / Device Role / Timing Role: Primary DC-DC converter delivering regulated output from unregulated 24V/48V bus with tight line/load regulation (<0.1%/V, <30mV). Use Value: 87% efficiency at 5A and 85.7% at 100mA enables fanless operation in enclosed cabinets across -40°C to +125°C ambient. | Use Scenario: Point-of-load conversion in factory automation servers and edge AI gateways powered from 48V backplane. IC Role / Device Role / Timing Role: High-efficiency buck stage stepping 48V down to 3.3V for FPGA core logic and memory interfaces. Use Value: COT control delivers <10µs transient response to 5A load steps, minimizing output droop and eliminating need for large bulk capacitance. |
| Battery-Powered Applications | After-Market Automotive |
Use Scenario: Portable test equipment and handheld HMIs operating from 12V/24V lead-acid or LiFePO4 packs. IC Role / Device Role / Timing Role: Main power regulator enabling >100-hour runtime via ultra-low 19µA quiescent current and DEM operation at standby. Use Value: Internal 3.3V default output eliminates feedback resistors, reducing BOM count and layout area in space-constrained enclosures. | Use Scenario: Retrofit infotainment and ADAS camera modules powered from vehicle 12V battery with cold-crank tolerance. IC Role / Device Role / Timing Role: Input-stage regulator handling 4.5V–60V transients including load dump (up to 65V absolute max). Use Value: UVLO with 300mV hysteresis and 153°C thermal shutdown ensure reliable operation during engine cranking and under-hood temperature extremes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPQ4333GQ-AEC1-P | 4.5V–60V input, 5A, but uses voltage-mode control with external compensation; no EBIAS pin or internal 3.3V default. | Lacks programmable sequencing and DEM; requires more external components for light-load optimization. | Preferred when strict AEC-Q100 qualification is mandatory and COT flexibility is not required. |
| TPS54561QPWPRQ1 | 4.5V–60V input, 5A, current-mode control; includes integrated boot diode but no negative overcurrent protection. | No bidirectional current sensing or hiccup-mode short-circuit recovery; lower light-load efficiency due to fixed frequency. | Selected for TI ecosystem compatibility and where robustness against output shorts is less critical than cost. |
Compared with MPQ4333GQ-AEC1-P and TPS54561QPWPRQ1, RAA2116514GNP#MA0 offers superior light-load efficiency via DEM, hardware-programmable sequencing, and comprehensive bidirectional fault protection - making it optimal for industrial and automotive applications demanding reliability and low standby power.
Availability
RAA2116514GNP#MA0 is available at Aetrix Electronics and suitable for industrial power supplies, 48V PoL systems, and battery-powered applications requiring stable component supply, long-term lifecycle support, and guaranteed traceability.
Supply support for RAA2116514GNP#MA0 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 is a global semiconductor leader specializing in microcontrollers, analog power, and connectivity solutions for industrial, automotive, and infrastructure markets.
The RAA211651 product line delivers high-voltage, high-current synchronous buck regulators optimized for rugged industrial environments and automotive-grade reliability - targeting applications needing wide VIN range, low IQ, and integrated protection without external supervision.
FAQ
What is the recommended input capacitor for RAA2116514GNP#MA0?
The RAA2116514GNP#MA0 requires ≥10µF ceramic input capacitance placed adjacent to PVIN and PGND pins to suppress high-frequency switching noise and maintain stability during load transients. For 48V input applications, X7R dielectric with 25V+ rating and low ESL construction is recommended to handle ripple current and voltage spikes.
Does RAA2116514GNP#MA0 support pre-biased output startup?
Yes, RAA2116514GNP#MA0 supports pre-biased output startup - verified in Figure 40 of the datasheet. When VOUT is pre-charged to 2V before enable, the controller enters soft-start without forcing reverse current into the output, preventing damage to downstream circuitry or capacitors.
How is the switching frequency set on RAA2116514GNP#MA0?
The RAA2116514GNP#MA0 uses Constant On-Time control - frequency is not fixed but load-dependent. On-time is set by the resistor between PVIN and SET pins (e.g., 82.5kΩ yields ~565kHz at 24V/5A). As load decreases, frequency drops to reduce switching losses, eliminating need for external frequency programming.
Can RAA2116514GNP#MA0 operate without an external feedback resistor divider?
Yes, RAA2116514GNP#MA0 can operate without external feedback resistors by tying FB to AVCC, which activates the internal 3.3V feedback reference. This configuration is validated in Figure 1 of the datasheet and simplifies design for standard 3.3V rail generation while maintaining ±1% output accuracy.
What thermal derating applies to RAA2116514GNP#MA0 at 100°C ambient?
At 100°C ambient with standard 2-layer PCB and 1in² copper pour, RAA2116514GNP#MA0 delivers ~4.2A continuous output before reaching 125°C junction limit. Derating follows θJA = 35°C/W; for full 5A operation above 85°C ambient, additional thermal vias under EPAD and thicker copper layers are required per layout guidelines in Section 6.2.
RAA2116514GNP#MA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 28-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 4.5V
- Voltage - Input (Max):
- 60V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- 60V
- Current - Output:
- 5A
- Frequency - Switching:
- 565kHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-QFN (4x5)
RAA2116514GNP#MA0 FAQ
1.How can I place an order for RAA2116514GNP#MA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for RAA2116514GNP#MA0 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 RAA2116514GNP#MA0 reliable?
The price and inventory of RAA2116514GNP#MA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RAA2116514GNP#MA0 is usually 5 days.
3.What payment methods are accepted for RAA2116514GNP#MA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RAA2116514GNP#MA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RAA2116514GNP#MA0?
RAA2116514GNP#MA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RAA2116514GNP#MA0 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 RAA2116514GNP#MA0?
For technical support, including RAA2116514GNP#MA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RAA2116514GNP#MA0 requirements.
6.How does Aetrix verify that RAA2116514GNP#MA0 is sourced from the original manufacturer or authorized distributors?
All RAA2116514GNP#MA0 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 RAA2116514GNP#MA0 meets industry standards.
7.What is the process for return or replacement of RAA2116514GNP#MA0?
All RAA2116514GNP#MA0 units undergo pre-shipment inspection (PSI). If there is an issue with RAA2116514GNP#MA0, 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 RAA2116514GNP#MA0 part is unused and in its original packaging.
Return procedure for RAA2116514GNP#MA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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