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Renesas RAA211630GSP#HA0
- Part No.:
- RAA211630GSP#HA0
- Manufacturer:
- Renesas
- Package:
- 16-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Datasheet:
-
RAA211630GSP#HA0.pdf
- Description:
- IC REG BUCK ADJ 3A 16HTSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,604
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Product details
Overview
RAA211630GSP#HA0 from Renesas Electronics is a 4.5V–60V input, 3A synchronous step-down DC/DC regulator in a 20-lead QFN (4mm × 3.5mm) package with internal compensation, programmable 200–800kHz switching frequency, and ±0.5% load regulation accuracy at 25°C. It delivers stable 0.8V–54V output voltage for industrial power rails and telecom base station point-of-load conversion.
For engineers reviewing the RAA211630GSP#HA0 datasheet, RAA211630GSP#HA0 pinout, RAA211630GSP#HA0 application, or RAA211630GSP#HA0 equivalent, key selection criteria include its integrated 110mΩ/40mΩ MOSFETs, 95µA quiescent current, external bias LDO support via EBIAS, PFM/DEM light-load mode, and thermal shutdown with 155°C trip point.
Technical Context
The RAA211630GSP#HA0 implements peak-current mode control with internal slope compensation and transconductance error amplifier. Its fixed-frequency PWM operation supports CCM up to full 3A load, while DCM enables variable-frequency operation below ~1.5A to maximize light-load efficiency.
It integrates dual LDOs-one biased from VIN, the other switchover-capable from EBIAS (3.3V–40V)-to reduce power dissipation across the load range. Internal loop compensation eliminates external Type-II/III networks, and soft-start is fixed at 0.5ms in QFN configuration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5V to 60V - supports wide industrial and telecom input rails without pre-regulation |
| Output Current | Up to 3A continuous - sufficient for FPGA core rails, DSP supplies, and PoL converters |
| Switching Frequency | Programmable 200–800kHz - enables trade-off between size (inductor/capacitor), efficiency, and transient response |
| Feedback Reference | 0.8V ±0.5% at 25°C - ensures tight output regulation under varying load and temperature |
| Quiescent Current | 95µA typical - minimizes standby power loss in always-on systems |
| MOSFET RDS(on) | 110mΩ/40mΩ (HS/LS) - reduces conduction losses and thermal stress at full load |
| Protection Features | Cycle-by-cycle OCP, VIN UVLO, VOUT undervoltage (short-circuit), thermal shutdown - enables robust field operation without external supervision |
Pinout & Package
RAA211630GSP#HA0 is housed in a thermally enhanced 20-lead QFN package (4mm × 3.5mm, 0.5mm pitch) with exposed thermal pad connected to AGND. Pin assignments are validated per Renesas R16DS0178EU0101 Rev.1.01.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PGND (Pins 1,13–19) | Power ground return | Source node for low-side FET; requires direct decoupling to VIN bypass caps |
| SW (Pins 2,11,12) | Switch node | Phase connection to inductor and bootstrap capacitor; high di/dt path requiring short layout |
| VIN (Pins 3,12,20) | Main input supply | Drain of high-side FET and input to internal LDO; must be filtered with ≥10µF ceramic |
| BST (Pin 4) | Bootstrap supply | Connects to SW via 0.1µF X7R capacitor to drive high-side gate above VIN |
| EBIAS (Pin 5) | External bias input | Accepts 3.3V–40V auxiliary rail (e.g., VOUT) to improve efficiency by reducing LDO dropout loss |
| FB (Pin 6) | Feedback input | Connects to resistor divider from VOUT; sets output voltage as VOUT = 0.8V × (1 + R1/R2) |
| AGND (Pin 7) | Analog ground reference | Separate ground for feedback and control circuitry; must tie to PGND at single point |
| PG (Pin 8) | Power-good open-drain | Asserts high when VOUT is within ±12% of target; requires external pull-up to ≤3.3V |
| FS (Pin 9) | Frequency set | Connect to VCC for 400kHz default; ground via resistor (261kΩ) for exact 400kHz or other values per Table 1 |
| VCC (Pin 10) | Internal bias supply | Output of internal LDOs; decouple with 1µF ceramic to PGND |
| EN (Pin 11) | Enable input | High-voltage tolerant (65V max); tie to VIN or use resistor divider for UVLO-controlled startup |
Key Features
| Feature | Design Value |
|---|---|
| Internal loop compensation | Eliminates external compensation network, reducing BOM count and layout sensitivity |
| Programmable soft-start (QFN fixed) | 0.5ms internal ramp prevents inrush current; no external capacitor required in RAA211630GSP#HA0 |
| PFM + DEM light-load operation | Extends battery life or reduces idle power in always-on industrial controllers |
| Integrated EBIAS LDO switchover | Automatically selects lower-loss VOUT bias when >3.1V, improving full-load efficiency by ~1–2% |
| Peak/valley current limit protection | Dual-cycle OCP (5A HS / 3.6A LS) enables fast fault response without external sense resistors |
Applications
| Industrial Power Systems | Distributed Power Supplies |
|---|---|
Use Scenario: 24V/48V factory automation I/O modules requiring isolated 3.3V/5V logic rails. IC Role / Device Role / Timing Role: Primary non-isolated buck converter delivering regulated 3.3V at up to 3A from unregulated 48V bus. Use Value: High input voltage tolerance and integrated MOSFETs eliminate external high-voltage switches and reduce board space by >30% vs discrete solutions. | Use Scenario: Rack-mounted telecom equipment with distributed 12V intermediate bus powering multiple point-of-load converters. IC Role / Device Role / Timing Role: Secondary buck regulator converting 12V to 1.8V/3.3V for ASIC/FPGA cores and memory interfaces. Use Value: Programmable 200–800kHz switching allows optimization for low-noise (200kHz) or compact (800kHz) designs without changing layout. |
| Telecom Base Station Power | High-Voltage Single-Board Systems |
Use Scenario: Remote radio unit (RRU) power management where ambient temperature exceeds 85°C. IC Role / Device Role / Timing Role: Main 5V/3A supply for RF front-end ICs and digital control logic operating from 48V DC feed. Use Value: Thermal shutdown at 155°C with 20°C hysteresis ensures safe derating up to 125°C junction temperature per spec. | Use Scenario: High-density test instrumentation with limited PCB area and strict thermal constraints. IC Role / Device Role / Timing Role: Compact 5V/3A regulator on a 4-layer board using QFN thermal pad and 3 vias for heat extraction. Use Value: θJA = 48.3°C/W (EVB) enables 3A operation at 70°C ambient without forced air, verified in Figure 22 thermal imaging. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM5164QPWPRQ1 | 4.5–65V input, 1.5A output, 100–1000kHz programmable, no integrated EBIAS LDO | Lacks external bias switchover; higher quiescent current (100µA vs 95µA); lower current rating limits use in 3A PoL | Select when automotive AEC-Q100 qualification is mandatory and 1.5A suffices |
| MPQ4333GQ-A | 4.5–36V input, 3A output, fixed 500kHz, no PFM/DEM, no EBIAS, smaller QFN (3×3mm) | Narrower VIN range excludes 48V/60V telecom rails; lacks light-load efficiency modes and bias flexibility | Select for cost-sensitive 24V systems where footprint is critical and efficiency at <100mA is not prioritized |
Compared with LM5164QPWPRQ1 and MPQ4333GQ-A, the RAA211630GSP#HA0 uniquely combines 60V input capability, 3A output, EBIAS-enabled efficiency optimization, and PFM/DEM light-load operation-making it optimal for high-voltage industrial and telecom PoL where thermal headroom and standby power matter.
Availability
RAA211630GSP#HA0 is available at Aetrix Electronics and suitable for industrial power systems, distributed power supplies, telecom base station power supplies, and high-voltage single-board systems requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for RAA211630GSP#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 RAA211630GSP#HA0 belongs to Renesas' high-voltage buck regulator product line, engineered for robust, high-efficiency point-of-load conversion in harsh environments with wide input ranges and minimal external components.
FAQ
What is the maximum input voltage supported by the RAA211630GSP#HA0?
The RAA211630GSP#HA0 supports an absolute maximum input voltage of 65V, with recommended operation from 4.5V to 60V. This 60V upper limit ensures reliable performance in 48V telecom and industrial systems while maintaining margin against transients. The device's VIN UVLO rising threshold is 4.25V (typical), preventing startup until input stabilizes above minimum operational voltage.
Does the RAA211630GSP#HA0 require external compensation components?
No, the RAA211630GSP#HA0 features fully internal loop compensation, eliminating the need for external Type-II or Type-III compensation networks. This simplifies design, reduces BOM count, and improves stability across its 200–800kHz switching frequency range and full load/temperature conditions. Compensation is optimized for standard output capacitor ESR and inductance values per the datasheet's recommended component table.
How does the EBIAS pin improve efficiency in the RAA211630GSP#HA0?
The EBIAS pin on the RAA211630GSP#HA0 accepts an external bias source (3.3V–40V) such as the output rail (VOUT), enabling automatic switchover from the VIN-based LDO when EBIAS exceeds 3.1V. This reduces power dissipation in the internal LDO, improving full-load efficiency by ~1–2% compared to VIN-only bias-particularly valuable in high-input-voltage, moderate-output-voltage applications like 48V-to-5V conversion.
What protection features are integrated into the RAA211630GSP#HA0?
The RAA211630GSP#HA0 integrates cycle-by-cycle peak and valley current limiting (5A HS / 3.6A LS), input voltage UVLO (4.25V rising threshold), output undervoltage (short-circuit) protection, and thermal shutdown at 155°C with 20°C hysteresis. These features operate autonomously without external circuitry, ensuring safe operation during overload, input brownout, output fault, or thermal overload conditions.
Can the RAA211630GSP#HA0 operate in discontinuous conduction mode (DCM)?
Yes, the RAA211630GSP#HA0 automatically enters discontinuous conduction mode (DCM) at light loads to improve efficiency. In DCM, it reduces switching frequency below the programmed value (down to ~50kHz) and engages pulse-frequency modulation (PFM) and diode emulation mode (DEM). This behavior is confirmed in Figures 4 and 10 of the datasheet and requires no external configuration-only valid for loads below ~1.5A depending on VIN/VOUT.
RAA211630GSP#HA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width) Exposed Pad
- 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):
- 60V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- 54V
- Current - Output:
- 3A
- Frequency - Switching:
- 400kHz, 200kHz ~ 800kHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-HTSSOP
RAA211630GSP#HA0 FAQ
1.How can I place an order for RAA211630GSP#HA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for RAA211630GSP#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 RAA211630GSP#HA0 reliable?
The price and inventory of RAA211630GSP#HA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RAA211630GSP#HA0 is usually 5 days.
3.What payment methods are accepted for RAA211630GSP#HA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RAA211630GSP#HA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RAA211630GSP#HA0?
RAA211630GSP#HA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RAA211630GSP#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 RAA211630GSP#HA0?
For technical support, including RAA211630GSP#HA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RAA211630GSP#HA0 requirements.
6.How does Aetrix verify that RAA211630GSP#HA0 is sourced from the original manufacturer or authorized distributors?
All RAA211630GSP#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 RAA211630GSP#HA0 meets industry standards.
7.What is the process for return or replacement of RAA211630GSP#HA0?
All RAA211630GSP#HA0 units undergo pre-shipment inspection (PSI). If there is an issue with RAA211630GSP#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 RAA211630GSP#HA0 part is unused and in its original packaging.
Return procedure for RAA211630GSP#HA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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