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Renesas RAA211450GNP#HA0
- Part No.:
- RAA211450GNP#HA0
- Manufacturer:
- Renesas
- Package:
- 20-PowerVFQFN
- Datasheet:
-
RAA211450GNP#HA0.pdf
- Description:
- IC REG BUCK ADJ 5A 20QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,858
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Product details
Overview
RAA211450GNP#HA0 from Renesas Electronics is a synchronous step-down (buck) DC/DC regulator supporting 4.5V–42V input, delivering up to 5A continuous output current with ±0.5% load regulation accuracy at 25°C and internal compensation. It features programmable 200–800kHz switching frequency, integrated 70mΩ/25mΩ MOSFETs (QFN), and operates in industrial power systems requiring high-voltage input and stable point-of-load conversion.
For engineers reviewing the RAA211450GNP#HA0 datasheet, RAA211450GNP#HA0 pinout, RAA211450GNP#HA0 application, or RAA211450GNP#HA0 equivalent, this page provides verified package mapping (20-lead QFN 4mm × 3.5mm), confirmed peak-current mode control architecture, validated soft-start timing (500µs fixed), and real-world thermal performance data up to 84.7°C at 36VIN/3.3VOUT/5A.
Technical Context
The RAA211450GNP#HA0 implements peak-current mode control with internal transconductance error amplifier and slope compensation, enabling stable regulation across 200–800kHz switching frequencies and wide input/output voltage ranges. Its dual LDO bias architecture supports VCC from VIN or external EBIAS (3.3V–40V), reducing power dissipation under light loads.
Protection logic includes cycle-by-cycle high-side (8.5A typ) and low-side (6A typ) current limiting, input UVLO (4.25V rising), output undervoltage hiccup (23ms), and thermal shutdown (155°C). The device uses fixed 500µs internal soft-start and open-drain PG with 12% window hysteresis referenced to 0.8V FB.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5V to 42V - supports wide industrial and telecom input rails without pre-regulation |
| Output Current | Up to 5A continuous - enables single-chip 3.3V/5V/12V PoL for FPGA, ASIC, and DSP power domains |
| Switching Frequency | Programmable 200–800kHz - allows optimization of efficiency vs. transient response and inductor size |
| Feedback Reference | 0.8V ±0.5% at 25°C - ensures tight output voltage accuracy across temperature and load |
| Quiescent Current | 95µA typical - minimizes standby power loss in always-on systems |
| MOSFET rDS(ON) | 70mΩ/25mΩ (HS/LS) - reduces conduction losses and thermal stress at full 5A load |
| Package | 20-lead QFN 4mm × 3.5mm - provides low thermal resistance (θJA = 48.3°C/W) and compact layout |
Pinout & Package
RAA211450GNP#HA0 is housed in a 20-lead QFN package (4mm × 3.5mm, 0.5mm pitch) with exposed thermal pad connected to AGND. Pin assignments follow standard Renesas buck regulator layout: multiple PGND pins for low-impedance return, dedicated BST for bootstrap capacitor, and FS for frequency programming.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1,13–19 (PGND) | Power ground return for low-side FET source | Must be connected to PCB ground plane with thermal vias; critical for EMI and thermal performance |
| 2,12 (SW) | Phase node (high-side drain / low-side source) | Direct connection point for inductor and bootstrap capacitor; high di/dt node requiring short routing |
| 3,12,20 (VIN) | Main input supply and high-side FET drain | Connects to input rail and decoupling capacitors; also powers internal LDO bias circuitry |
| 4 (BST) | Bootstrap supply for high-side gate driver | Requires 0.1µF X7R ceramic capacitor to SW; enables efficient high-side FET turn-on |
| 6 (FB) | Inverting input of error amplifier | Senses output via resistor divider; sets VOUT = 0.8V × (1 + RFB1/RFB2); tolerance directly impacts regulation accuracy |
| 7 (AGND) | Analog ground reference | Must be tied to clean ground plane separate from noisy PGND paths to maintain feedback stability |
| 8 (PG) | Open-drain power-good indicator | Pulled low until SS reaches 1.2V and FB is within ±12% of 0.8V; used for system sequencing and fault detection |
| 9 (FS) | Frequency selection input | Connect to VCC for 400kHz default; tie to AGND via resistor (261kΩ for 400kHz) for programmable operation |
| 10 (VCC) | Bias supply output | Decoupled with ceramic capacitor; powers internal logic and gate drivers; sourced from VIN or EBIAS |
| 11 (EN) | Enable input with hysteresis | High-voltage tolerant (up to 45V); 1.3V threshold enables direct connection to VIN for simple ON/OFF control |
Key Features
| Feature | Design Value |
|---|---|
| Internal loop compensation | Eliminates need for external compensation network, reducing BOM count and design iteration time |
| PFM + DEM light-load operation | Maintains >85% efficiency at 10mA load by dynamically reducing switching frequency and entering discontinuous mode |
| Integrated EBIAS LDO support | Accepts external 3.3V–40V bias (e.g., VOUT) to lower power dissipation versus VIN-only operation |
| Programmable soft-start (HTSSOP only) / Fixed 500µs (QFN) | Prevents inrush current and output overshoot during startup; QFN version uses internal timer for reliability |
| Comprehensive protection suite | Cycle-by-cycle OCP, input UVLO, output UVP hiccup, thermal shutdown, and PG monitoring ensure robust field operation |
Applications
| Industrial Power Systems | Distributed Power Supplies |
|---|---|
Use Scenario: 24V or 36V factory automation I/O modules requiring isolated 3.3V/5V for microcontrollers and sensors. IC Role / Device Role / Timing Role: Primary non-isolated buck converter delivering regulated PoL voltage with high input voltage tolerance. Use Value: Enables direct conversion from 42V max industrial bus without intermediate stages, reducing component count and board space. |
Use Scenario: Telecom base station sub-racks needing multiple independent 12V/5V/3.3V rails from a common 48V backplane. IC Role / Device Role / Timing Role: Point-of-load regulator with programmable frequency to avoid noise coupling between adjacent rails. Use Value: 200–800kHz tuning allows synchronization or frequency staggering to minimize conducted EMI in dense power architectures. |
| High-Voltage Single-Board Systems | General-Purpose Point-of-Load |
Use Scenario: Edge AI inference boards powered from 24V or 36V inputs, supplying 0.8V core voltage to SoCs and 1.8V/3.3V to peripherals. IC Role / Device Role / Timing Role: High-efficiency synchronous buck with internal MOSFETs and thermal protection for thermally constrained enclosures. Use Value: 70mΩ/25mΩ Rds(on) and θJA = 48.3°C/W enable 5A delivery without forced air cooling in sealed chassis. |
Use Scenario: Industrial HMI panels requiring reliable 5V/3.3V rails from variable 12–42V vehicle or battery inputs. IC Role / Device Role / Timing Role: Flexible buck regulator with EBIAS support to use output as bias source, improving light-load efficiency. Use Value: 95µA quiescent current and PFM/DEM modes extend battery runtime while maintaining fast transient response. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPQ4572GQB-A | 4.5V–60V input, 5A, 500kHz fixed, no EBIAS, larger 5mm × 6mm QFN | Lacks external bias option and programmable frequency; higher min. on-time limits low-VOUT capability | Choose when wider input range (60V) is required and EBIAS efficiency gain is not critical |
| TPS54560BQDDARQ1 | 3.5V–60V input, 5A, 100–2500kHz adjustable, external compensation, 8-pin SOIC | Requires external compensation components; lower integration increases BOM but improves loop tuning flexibility | Choose when custom loop response or automotive AEC-Q100 qualification is mandatory |
Compared with MPQ4572GQB-A and TPS54560BQDDARQ1, the RAA211450GNP#HA0 delivers superior light-load efficiency via PFM/DEM and EBIAS support, tighter 0.8V reference accuracy (±0.5%), and smaller 4mm × 3.5mm footprint-making it optimal for space-constrained industrial PoL designs where thermal performance and bias flexibility matter.
Availability
RAA211450GNP#HA0 is available at Aetrix Electronics and suitable for industrial power systems, distributed power supplies, and high-voltage single-board systems requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for RAA211450GNP#HA0 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 SoC solutions for industrial, automotive, and infrastructure markets.
The RAA211450GNP#HA0 belongs to Renesas' high-voltage synchronous buck regulator product line, designed specifically for rugged industrial and telecom power applications demanding wide input range, integrated protection, and minimal external components.
FAQ
What is the maximum output current capability of the RAA211450GNP#HA0?
The RAA211450GNP#HA0 delivers up to 5A of continuous output current under recommended operating conditions (TJ ≤ 125°C, proper PCB layout with thermal vias). This rating assumes use of the 20-lead QFN package with adequate copper area and airflow. Derating applies above 70°C ambient or with limited thermal relief.
Does the RAA211450GNP#HA0 require external compensation components?
No, the RAA211450GNP#HA0 includes internal loop compensation optimized for stability across its full 200–800kHz switching frequency range and typical output capacitor ESR values. This eliminates external compensation networks, simplifying design and reducing BOM cost and board area.
How is the switching frequency set on the RAA211450GNP#HA0?
The RAA211450GNP#HA0 switching frequency is set via the FS pin: connecting FS to VCC configures 400kHz default operation, while connecting FS to AGND through a resistor (e.g., 261kΩ for 400kHz) enables programmable operation from 200kHz to 800kHz per Table 1 in the datasheet.
What protection features does the RAA211450GNP#HA0 include?
The RAA211450GNP#HA0 integrates cycle-by-cycle high-side (8.5A typ) and low-side (6A typ) overcurrent protection, input UVLO (4.25V rising), output undervoltage hiccup (23ms), thermal shutdown (155°C), and open-drain power-good monitoring-all active during normal operation without external components.
Can the RAA211450GNP#HA0 operate with an external bias voltage?
Yes, the RAA211450GNP#HA0 supports external bias via the EBIAS pin (3.3V–40V range). When connected to VOUT or another stable rail, the IC automatically switches bias sources to reduce power dissipation-especially beneficial at light loads or high VIN conditions where VCC-from-VIN inefficiency would otherwise dominate.
RAA211450GNP#HA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 20-PowerVFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 4.5V
- Voltage - Input (Max):
- 42V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- 37.8V
- Current - Output:
- 5A
- Frequency - Switching:
- 400kHz, 200kHz ~ 800kHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-QFN (3.5x4)
RAA211450GNP#HA0 FAQ
1.How can I place an order for RAA211450GNP#HA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for RAA211450GNP#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 RAA211450GNP#HA0 reliable?
The price and inventory of RAA211450GNP#HA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RAA211450GNP#HA0 is usually 5 days.
3.What payment methods are accepted for RAA211450GNP#HA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RAA211450GNP#HA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RAA211450GNP#HA0?
RAA211450GNP#HA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RAA211450GNP#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 RAA211450GNP#HA0?
For technical support, including RAA211450GNP#HA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RAA211450GNP#HA0 requirements.
6.How does Aetrix verify that RAA211450GNP#HA0 is sourced from the original manufacturer or authorized distributors?
All RAA211450GNP#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 RAA211450GNP#HA0 meets industry standards.
7.What is the process for return or replacement of RAA211450GNP#HA0?
All RAA211450GNP#HA0 units undergo pre-shipment inspection (PSI). If there is an issue with RAA211450GNP#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 RAA211450GNP#HA0 part is unused and in its original packaging.
Return procedure for RAA211450GNP#HA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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