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Renesas RAA808015AGNP#HA0
- Part No.:
- RAA808015AGNP#HA0
- Manufacturer:
- Renesas
- Package:
- 10-PowerWQFN
- Datasheet:
-
RAA808015AGNP#HA0.pdf
- Description:
- IC REG BUCK ADJ 5A 10FCQFN
- Quantity:
- Payment:
- Shipping:
Inventory:5,993
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Product details
Overview
RAA808015AGNP#HA0 from Renesas Electronics is a 5A synchronous buck regulator with 2.7V–5.5V input, 0.6V–5V adjustable output, and integrated 20mΩ/16mΩ MOSFETs. It uses Constant On-Time (COT) control for ultrafast transient response and operates at 1.8MHz default switching frequency. Designed for point-of-load regulation in FPGAs and microprocessors, it supports 100% duty cycle in dropout and features PFM light-load mode.
For engineers reviewing the RAA808015AGNP#HA0 datasheet, RAA808015AGNP#HA0 pinout, RAA808015AGNP#HA0 application, or RAA808015AGNP#HA0 equivalent, key selection criteria include its QFN-10 2mm×2.5mm package, -40°C to +125°C junction temperature range, EN-controlled power sequencing, PG open-drain status indicator, and COT architecture enabling stable operation across line/load/output voltage variations without external compensation.
Technical Context
The RAA808015AGNP#HA0 implements a VIN feedforward-enhanced Constant On-Time control scheme that maintains nearly constant 1.8MHz switching frequency across 2.7V–5.5V input, 0.6V–5V output, and 0A–5A load ranges. Its dual-mode operation transitions smoothly between COT, constant off-time, and 100% duty cycle based on VIN–VOUT differential.
It integrates cycle-by-cycle peak current limiting (7.8A typical), hiccup-mode OCP after three faults, thermal shutdown at 160°C with 15°C hysteresis, and UVLO with 2.65V rising threshold and 60mV hysteresis. The 800µs fixed soft-start supports pre-bias startup and ensures controlled VOUT ramp-up.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7V to 5.5V - supports single-cell Li-ion, USB, and low-voltage industrial rails without external LDO pre-regulation. |
| Output Current | 5A continuous - delivers full-rated current up to +125°C junction temperature with thermal derating. |
| Switching Frequency | 1.8MHz nominal - enables compact 0.47µH inductor and small ceramic output capacitors for high-density layouts. |
| Feedback Voltage | 0.6V ±3.5% over -40°C to +125°C - sets precise output voltage via external resistor divider with minimal drift. |
| MOSFET RDS(on) | 20mΩ (HS), 16mΩ (LS) - minimizes conduction loss and improves full-load efficiency above 90% at 5VIN/1.2VOUT. |
| Protection Features | UVLO, OCP (hiccup), OTP, SCP - provides autonomous fault recovery and robust operation under overload, short-circuit, and thermal stress. |
| Soft-Start Time | 800µs - prevents inrush current and ensures monotonic VOUT rise during power-up and pre-bias conditions. |
Pinout & Package
RAA808015AGNP#HA0 is housed in a Pb-free, thermally enhanced 10-pin QFN package measuring 2.0mm × 2.5mm × 0.8mm with exposed thermal pad. The package supports high-power density designs and efficient PCB heat dissipation via the bottom-side copper pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SW (Pins 1, 10) | Switch node | Connects to external inductor; carries high di/dt switching current - requires short, low-inductance layout to minimize EMI and voltage spikes. |
| GND (Pins 2, 3) | Power ground | Primary return path for high-current switching loops - must be tied directly to thermal pad and separated from AGND at single-point star ground. |
| VIN (Pin 4) | Input supply | Accepts 2.7V–5.5V unregulated input; requires local 10µF+ ceramic decoupling capacitor placed adjacent to pin. |
| PG (Pin 5) | Power-good indicator | Open-drain output with internal 500kΩ pull-up to VIN; asserts low if FB < 85% of 0.6V or during thermal/overcurrent fault. |
| EN (Pin 6) | Enable control | Logic-level input (1.2V min high, 0.4V max low); must not float - tie to VIN via 10kΩ pull-up if unused. |
| AGND (Pin 7) | Analog ground | Reference ground for feedback amplifier and internal reference - routed separately from power GND and connected at single point near IC. |
| FB (Pin 8) | Feedback input | Senses scaled output voltage; connects to resistor divider (R1/R2) - high-impedance node sensitive to noise and layout parasitics. |
| VOUT (Pin 9) | Output voltage sense | Direct connection to regulated output rail; used for remote sensing in high-accuracy applications to compensate for PCB trace IR drop. |
Key Features
| Feature | Design Value |
|---|---|
| Constant On-Time (COT) Control | Delivers ultrafast load transient response (<10µs recovery) without external compensation components or loop tuning. |
| PFM Light-Load Mode | Reduces quiescent current to 55µA (typical), extending battery life in always-on subsystems while maintaining regulation. |
| 100% Duty Cycle Operation | Enables dropout operation down to VIN = VOUT, critical for low-voltage battery-powered systems near end-of-discharge. |
| Integrated Power MOSFETs | Eliminates external high-side/low-side switch selection, reduces BOM count by ≥4 components, and guarantees matched timing and drive strength. |
| Pre-Bias Startup Support | Allows safe turn-on when output rail is pre-charged (e.g., hot-swap or multi-rail sequencing), preventing reverse current flow. |
Applications
| Point-of-Load Regulation | FPGA Core Supply |
|---|---|
Use Scenario: Providing tightly regulated 0.85V–1.2V core voltage to Xilinx Artix-7 or Intel Cyclone V FPGA under dynamic logic switching loads. IC Role / Device Role / Timing Role: Primary DC/DC converter delivering 5A peak current with sub-10mV load regulation and <50µs transient recovery. Use Value: Maintains FPGA timing margins and signal integrity by suppressing output voltage droop during burst-mode computation. | Use Scenario: Powering high-performance DSPs such as TI C66x or ADI SHARC+ in real-time audio processing systems. IC Role / Device Role / Timing Role: Synchronous buck regulator supplying 1.1V/3A core rail with fast transient response to handle instruction pipeline stalls and cache misses. Use Value: Prevents DSP clock jitter and instruction aborts by limiting output deviation to ±1.5% under 0A→3A 10µs load steps. |
| Battery-Powered IoT Node | Optical Transceiver Module |
Use Scenario: Regulating 3.3V from single-cell Li-ion (2.7V–4.2V) for BLE/Wi-Fi SoCs like Nordic nRF52840 in portable sensors. IC Role / Device Role / Timing Role: High-efficiency buck converter operating in PFM mode during sleep (55µA IQ) and forced PWM during active transmission. Use Value: Extends battery runtime by >30% versus fixed-frequency alternatives while supporting seamless wake-up from deep sleep. | Use Scenario: Generating 2.5V bias for 10Gbps SFP+ transceivers in telecom line cards where EMI and thermal density are constrained. IC Role / Device Role / Timing Role: Compact 2mm×2.5mm buck regulator delivering 5A with 1.8MHz switching to minimize conducted emissions in RF-sensitive zones. Use Value: Enables placement within 5mm of laser driver ICs without violating CISPR-32 Class B emission limits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62864DLCR | 4A rated, 2.4V–5.5V input, 1.8MHz fixed frequency, 2.5µA shutdown current - lower IQ but reduced current capability. | Best suited for space-constrained 3.3V/2.5V I/O rails rather than 5A core supplies; lacks 100% duty cycle and pre-bias startup. | Select when ultra-low shutdown IQ and smaller solution size outweigh 5A requirement and dropout flexibility. |
| MP2143GJ-Z | 6A rated, 2.5V–5.5V input, 500kHz–2.2MHz programmable frequency, external compensation - higher current but larger footprint and design complexity. | Preferred for high-temperature industrial environments (>105°C ambient) due to wider thermal margin, but requires loop compensation design effort. | Select when >5A headroom or programmable frequency for EMI tuning is required, accepting larger QFN-12 package and external RC network. |
Compared with TPS62864DLCR and MP2143GJ-Z, the RAA808015AGNP#HA0 uniquely balances 5A capability, 1.8MHz fixed frequency, 100% duty cycle, and PFM efficiency in a 2mm×2.5mm footprint - making it optimal for FPGA/DSP core rails where transient response, dropout behavior, and board area are co-critical.
Availability
RAA808015AGNP#HA0 is available at Aetrix Electronics and suitable for point-of-load regulation, FPGA core supply, and battery-powered IoT node applications requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for RAA808015AGNP#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 management, and timing solutions for automotive, industrial, and infrastructure markets.
The RAA808015A/B product line delivers high-efficiency, low-BOM-count buck regulators optimized for low-voltage, high-density power delivery in FPGAs, DSPs, ASICs, and battery-powered edge devices.
FAQ
What is the switching frequency of the RAA808015AGNP#HA0 and how is it stabilized?
The RAA808015AGNP#HA0 operates at a nominal 1.8MHz switching frequency. This frequency remains nearly constant across input voltage (2.7V–5.5V), output voltage (0.6V–5V), and load (0A–5A) ranges due to its Constant On-Time (COT) control architecture with VIN feedforward and VOUT feedback. Unlike traditional COT regulators, this implementation avoids frequency variation without requiring external compensation components.
Does the RAA808015AGNP#HA0 support pre-bias startup, and what are the conditions?
Yes, the RAA808015AGNP#HA0 supports pre-bias startup. It safely turns on when the output rail is pre-charged to any voltage between 0V and VOUT setpoint, preventing reverse current flow into the output capacitor. This feature is enabled by internal circuitry that monitors SW node voltage and delays high-side FET turn-on until inductor current is confirmed non-negative, as verified in Figure 50 and Figure 51 of the datasheet.
What protection features does the RAA808015AGNP#HA0 include, and how do they behave under fault?
The RAA808015AGNP#HA0 includes cycle-by-cycle peak current limiting (7.8A typical), hiccup-mode overcurrent protection (OCP) triggered after three consecutive current-limit events with 3.6ms off-time, thermal shutdown at 160°C with 15°C hysteresis, and input undervoltage lockout (UVLO) with 2.65V rising threshold. During any fault, the PG pin is actively pulled low, signaling system-level fault detection and enabling coordinated power-down sequences.
How is output voltage programmed on the RAA808015AGNP#HA0, and what is the reference accuracy?
Output voltage is programmed using an external resistor divider connected between VOUT, FB, and AGND. The internal reference is 0.6V with ±3.5% tolerance over -40°C to +125°C, as specified in the Electrical Specifications table. For example, a 0.6V output requires R1 = 0Ω and R2 < 500kΩ; higher outputs use Equation 1 from the datasheet: VOUT = 0.6V × (1 + R1/R2). The FB pin draws only 10nA leakage current, minimizing divider error.
What is the thermal performance of the RAA808015AGNP#HA0 in its 2mm×2.5mm QFN package?
The RAA808015AGNP#HA0 in its 10-pin QFN package has a typical θJA of 58.1°C/W and θJC of 3.9°C/W, measured per JEDEC standards on a high-thermal-conductivity test board. With proper PCB layout-including a 20mm² exposed thermal pad connected to ≥4 thermal vias to inner ground planes-the device sustains 5A continuous output at +125°C junction temperature. Derating curves in the datasheet confirm full 5A operation up to +85°C ambient with 200LFM airflow.
RAA808015AGNP#HA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 10-PowerWQFN
- 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):
- 2.7V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 5A
- Frequency - Switching:
- 1.8MHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-FCQFN (2x2.5)
RAA808015AGNP#HA0 FAQ
1.How can I place an order for RAA808015AGNP#HA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for RAA808015AGNP#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 RAA808015AGNP#HA0 reliable?
The price and inventory of RAA808015AGNP#HA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RAA808015AGNP#HA0 is usually 5 days.
3.What payment methods are accepted for RAA808015AGNP#HA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RAA808015AGNP#HA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RAA808015AGNP#HA0?
RAA808015AGNP#HA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RAA808015AGNP#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 RAA808015AGNP#HA0?
For technical support, including RAA808015AGNP#HA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RAA808015AGNP#HA0 requirements.
6.How does Aetrix verify that RAA808015AGNP#HA0 is sourced from the original manufacturer or authorized distributors?
All RAA808015AGNP#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 RAA808015AGNP#HA0 meets industry standards.
7.What is the process for return or replacement of RAA808015AGNP#HA0?
All RAA808015AGNP#HA0 units undergo pre-shipment inspection (PSI). If there is an issue with RAA808015AGNP#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 RAA808015AGNP#HA0 part is unused and in its original packaging.
Return procedure for RAA808015AGNP#HA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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