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Renesas RAA2112304GP3#JA0
- Part No.:
- RAA2112304GP3#JA0
- Manufacturer:
- Renesas
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
RAA2112304GP3#JA0.pdf
- Description:
- IC REG BUCK ADJ 3A TSOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:4,821
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Product details
Overview
RAA2112304GP3#JA0 from Renesas Electronics is a 24V-input, 3A synchronous buck regulator with current-mode constant on-time (COT) control, integrated high-side (85 mΩ) and low-side (45 mΩ) MOSFETs, 0.765 V ±2% reference, and comprehensive protection including UVLO, LSOC, OUVP, and OTP. It delivers stable 3.3 V or 5 V output for industrial I/O supplies and embedded system rails.
For engineers reviewing the RAA2112304GP3#JA0 datasheet, RAA2112304GP3#JA0 pinout, RAA2112304GP3#JA0 application, or RAA2112304GP3#JA0 equivalent, this page provides verified electrical specs, package mapping to 6-lead TSOT23, validated pin functions, thermal derating guidance, and real-world design constraints including minimum on-time (60 ns), off-time (275 ns), and soft-start timing (0.8 ms).
Technical Context
The RAA2112304GP3#JA0 implements current-mode COT control with internal compensation, enabling fast transient response without external loop tuning. Its valley-current sensing enables precise low-side overcurrent (LSOC) detection at 3.1 A typical, triggering hiccup-mode recovery upon sustained fault.
It operates across -40°C to +125°C junction temperature with input voltage range 4.5 V–24 V, supports PFM mode under light load, and integrates a 0.8 ms internal soft-start ramping the error amplifier reference from 0 V to 0.765 V to prevent inrush current and overshoot.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5 V to 24 V - supports wide industrial supply rails including 12 V and 24 V systems without external pre-regulation. |
| Output Current | Up to 3 A continuous - sufficient for powering microcontrollers, FPGAs, sensors, and interface ICs in compact designs. |
| Feedback Reference | 0.765 V ±2% - enables accurate output voltage setting (e.g., 3.3 V with 33.2 kΩ/10 kΩ divider) with minimal drift over temperature. |
| Quiescent Current | 400 µA - ensures low standby power in always-on industrial monitoring nodes. |
| Minimum On/Off Time | 60 ns / 275 ns - supports high VIN-to-VOUT conversion ratios (e.g., 24 V → 3.3 V) while maintaining stable 500 kHz switching. |
| Thermal Shutdown | 170°C with 20°C hysteresis - protects against sustained overload or poor heatsinking in enclosed enclosures. |
| Package | 6-lead TSOT23 - surface-mount footprint compatible with automated assembly; θJA = 105°C/W in free air. |
Pinout & Package
The RAA2112304GP3#JA0 is housed in a 6-lead TSOT23 package (3.0 mm × 1.7 mm × 0.9 mm), optimized for high-power density and thermal performance in space-constrained industrial PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pin 1) | Power ground reference | Primary return path for high-current switching loops; must be connected to low-impedance PGND plane adjacent to SW and VIN pins. |
| SW (Pin 2) | Switch node | Connects internally to both MOSFETs; externally ties to inductor and bootstrap capacitor - critical for EMI control and gate drive integrity. |
| VIN (Pin 3) | Main power input | Accepts 4.5–24 V input; requires local 10 µF ceramic decoupling placed within 2 mm of pin to suppress switching noise. |
| FB (Pin 4) | Feedback input | Senses output voltage via resistor divider; 0.765 V threshold sets VOUT = 0.765 × (1 + RFB1/RFB2); high-impedance node requiring short trace routing. |
| EN (Pin 5) | Enable control | Logic-level input with 1.3 V rising threshold and 0.1 V hysteresis; tied to VIN for always-on operation or driven by MCU GPIO for sequencing. |
| BST (Pin 6) | Bootstrap supply | Drives high-side MOSFET gate; requires 0.1 µF X7R ceramic capacitor between BST and SW to sustain gate voltage during conduction. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Power Stage | 85 mΩ high-side + 45 mΩ low-side MOSFETs eliminate external discrete FETs and gate drivers, reducing BOM count and layout complexity. |
| Current-Mode COT Control | Internal compensation and valley-current sensing enable stable operation across 4.5–24 V input without external compensation components. |
| Hiccup-Mode Fault Recovery | Upon LSOC or OUVP, device enters 13 ms off-time / 1.25 ms on-time hiccup cycle - prevents thermal runaway while allowing automatic recovery after fault clears. |
| Accurate Enable Threshold | 1.3 V EN rising threshold with 100 mV hysteresis allows precise power sequencing and programmable VIN UVLO using external resistor dividers. |
| Low Quiescent Power | 400 µA IQ and 1.5–5 µA shutdown current extend battery life in backup-supplied or energy-harvesting applications. |
Applications
| Industrial PLC I/O Module | Embedded Edge Sensor Node |
|---|---|
Use Scenario: Powering isolated analog input channels, digital I/O drivers, and RS-485 transceivers in DIN-rail mounted controllers. IC Role / Device Role / Timing Role: Primary 3.3 V/3 A DC-DC converter supplying mixed-signal circuitry with tight ripple (<10 mV) and robust line/load regulation. Use Value: Integrated MOSFETs and COT control deliver >92% efficiency at 1 A–3 A loads across 12 V and 24 V input rails, reducing thermal management burden. |
Use Scenario: Compact wireless sensor node powered by 12 V industrial bus or 24 V field supply, hosting MCU, LoRaWAN radio, and environmental sensors. IC Role / Device Role / Timing Role: Single-chip 5 V → 3.3 V step-down regulator with PFM mode enabling <10 µA system sleep current when MCU is idle. Use Value: 400 µA quiescent current and 0.8 ms soft-start ensure reliable cold-start under weak or fluctuating input conditions common in remote deployments. |
| Factory Automation HMI Display | Ruggedized Network Gateway |
Use Scenario: Powering 4.3″–7″ TFT-LCD panels, touch controllers, and ARM Cortex-A53 SoCs in panel-mounted HMIs exposed to ambient temperatures up to 70°C. IC Role / Device Role / Timing Role: High-efficiency 5 V output stage delivering 3 A peak current during display backlight activation and CPU burst loads. Use Value: 60 ns minimum on-time supports stable 5 V output from 12 V input even at full load, while OTP with 20°C hysteresis prevents thermal shutdown during extended operation. |
Use Scenario: Dual-rail power for Ethernet PHY, PoE interface, and security MCU in IP67-rated gateways deployed in harsh manufacturing environments. IC Role / Device Role / Timing Role: Secondary 3.3 V rail generator from 12 V intermediate bus, providing clean, well-regulated supply for sensitive communication ICs. Use Value: LSOC protection and hiccup-mode response prevent latch-up during cable ESD events or connector hot-plug transients, improving field reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP2451DJ-LF-Z (Monolithic Power) | 4.5–36 V input, 0.6 A max, 2 MHz fixed frequency, no integrated LS FET - requires external diode or synchronous rectifier. | Limited to sub-1 A loads; lacks hiccup-mode protection and accurate EN threshold. | Choose only for cost-sensitive, low-current auxiliary rails where thermal margin is ample and fault recovery is handled externally. |
| TPS54332DR (Texas Instruments) | 3.5–28 V input, 3 A, current-mode PWM (not COT), requires external compensation, 10-pin MSOP package. | Higher pin count, larger footprint, and manual loop tuning required - increases design time and validation effort. | Select when strict EMI compliance mandates fixed-frequency operation or when existing TI ecosystem tools (WEBENCH) are mandated. |
Compared with MP2451DJ-LF-Z and TPS54332DR, the RAA2112304GP3#JA0 delivers higher integration (dual MOSFETs, internal compensation), superior light-load efficiency (PFM mode), and faster fault response (hiccup timer with 13 ms off-time), making it optimal for space- and reliability-critical industrial power rails.
Availability
RAA2112304GP3#JA0 is available at Aetrix Electronics and suitable for industrial PLC I/O modules, embedded edge sensor nodes, factory automation HMIs, and ruggedized network gateways requiring stable component supply with guaranteed long-term availability.
Supply support for RAA2112304GP3#JA0 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 embedded solutions for industrial, automotive, and IoT markets.
The RAA211230 series is designed specifically for high-reliability industrial power conversion, emphasizing integrated protection, wide input range, and simplified layout - targeting applications where board space, thermal headroom, and field uptime are critical.
FAQ
What is the maximum output voltage supported by the RAA2112304GP3#JA0?
The RAA2112304GP3#JA0 supports an absolute maximum output voltage of 14 V, but practical operating limits depend on input voltage and minimum off-time. For example, at 24 V input and 500 kHz switching, the maximum stable VOUT is ~12 V per Equation 5 in the datasheet. The internal 0.765 V reference and external resistor divider allow precise programming down to that reference level.
Does the RAA2112304GP3#JA0 require external compensation components?
No, the RAA2112304GP3#JA0 uses current-mode constant on-time (COT) control with internal compensation. Unlike traditional voltage-mode or current-mode PWM regulators, it does not require external RC networks on the COMP or FB pins - simplifying design and reducing component count.
How does the RAA2112304GP3#JA0 handle short-circuit conditions?
Under short-circuit, the RAA2112304GP3#JA0 detects low-side overcurrent (LSOC) and engages hiccup-mode protection: it shuts down for 13 ms, then attempts soft-start for 1.25 ms. This cycle repeats until the fault clears, preventing thermal damage while enabling automatic recovery without host intervention.
Can the RAA2112304GP3#JA0 operate with a 5 V input supply?
Yes - the RAA2112304GP3#JA0 supports input voltages from 4.5 V to 24 V. At 5 V input, it can regulate outputs such as 1.05 V, 1.8 V, or 3.3 V. However, minimum on-time (60 ns) limits the lowest achievable VOUT; for example, 5 V → 1.05 V requires duty cycle ~21%, which remains within stable operating range.
What is the recommended layout practice for the BST and SW pins of the RAA2112304GP3#JA0?
Renesas specifies placing a 0.1 µF X7R ceramic capacitor directly between BST and SW pins, with minimal trace length (<2 mm) and no vias. This minimizes parasitic inductance to ensure robust high-side gate drive. The SW node must also connect to the inductor and input/output capacitors with a tight, low-inductance loop to reduce ringing and EMI.
RAA2112304GP3#JA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- SOT-23-6 Thin, TSOT-23-6
- 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):
- 24V
- Voltage - Output (Min/Fixed):
- 0.765V
- Voltage - Output (Max):
- 14V
- Current - Output:
- 3A
- Frequency - Switching:
- 500kHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-6
RAA2112304GP3#JA0 FAQ
1.How can I place an order for RAA2112304GP3#JA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for RAA2112304GP3#JA0 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 RAA2112304GP3#JA0 reliable?
The price and inventory of RAA2112304GP3#JA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RAA2112304GP3#JA0 is usually 5 days.
3.What payment methods are accepted for RAA2112304GP3#JA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RAA2112304GP3#JA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RAA2112304GP3#JA0?
RAA2112304GP3#JA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RAA2112304GP3#JA0 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 RAA2112304GP3#JA0?
For technical support, including RAA2112304GP3#JA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RAA2112304GP3#JA0 requirements.
6.How does Aetrix verify that RAA2112304GP3#JA0 is sourced from the original manufacturer or authorized distributors?
All RAA2112304GP3#JA0 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 RAA2112304GP3#JA0 meets industry standards.
7.What is the process for return or replacement of RAA2112304GP3#JA0?
All RAA2112304GP3#JA0 units undergo pre-shipment inspection (PSI). If there is an issue with RAA2112304GP3#JA0, 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 RAA2112304GP3#JA0 part is unused and in its original packaging.
Return procedure for RAA2112304GP3#JA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RAA2112304GP3#JA0 Tags
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