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Infineon Technologies IRU3012CWTR
- Part No.:
- IRU3012CWTR
- Manufacturer:
- Infineon Technologies
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
IRU3012CWTR.pdf
- Description:
- IC REG BUCK 20SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,611
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Product details
Overview
IRU3012CWTR from Infineon Technologies is a synchronous buck DC-DC controller IC designed for high-efficiency point-of-load regulation in server and telecom power supplies. It supports 4.5 V to 24 V input, delivers up to 30 A output current via external MOSFETs, operates at 300 kHz fixed switching frequency, integrates an on-chip 5 V LDO for gate driver bias, and features overcurrent protection with cycle-by-cycle current limiting.
For engineers reviewing the IRU3012CWTR datasheet, IRU3012CWTR pinout, IRU3012CWTR application, or IRU3012CWTR equivalent, key selection criteria include its voltage-mode control architecture, programmable soft-start time (0.5–10 ms), adjustable output voltage range (0.6 V to 5.5 V), and compatibility with N-channel high-side and low-side MOSFETs in multiphase configurations.
Technical Context
The IRU3012CWTR implements voltage-mode PWM control with internal error amplifier compensation, enabling stable regulation across wide load and line variations. It includes dedicated VSENSE+ and VSENSE− differential remote sensing inputs, a precision 0.6 V reference with ±1% tolerance, and thermal shutdown at 150°C.
Its gate drivers deliver 1.5 A peak sink/source capability per channel, supporting fast turn-on/turn-off of discrete MOSFETs. The IC accepts external clock synchronization up to 1 MHz and provides power-good (PGOOD) status with 1% accuracy and 10 ms delay.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Topology | Synchronous buck controller - requires external high-side and low-side N-MOSFETs for regulated step-down conversion |
| Input Voltage Range | 4.5 V to 24 V - supports 5 V, 12 V, and 24 V intermediate bus architectures |
| Output Voltage Range | 0.6 V to 5.5 V - set by external resistor divider; 0.6 V reference enables core voltage regulation for CPUs/FPGAs |
| Switching Frequency | 300 kHz fixed - balances efficiency, EMI, and inductor size for mid-power POL applications |
| Current Sensing | High-side MOSFET RDS(on) sensing - eliminates sense resistor, reduces power loss and board space |
| Protection Features | Cycle-by-cycle overcurrent, thermal shutdown, undervoltage lockout (UVLO), and PGOOD monitoring - ensures robust system-level fault handling |
Pinout & Package
20-pin SOIC (Small Outline Integrated Circuit) package with exposed thermal pad (SOIC-20W), 1.27 mm pitch, RoHS-compliant, rated for −40°C to +125°C junction temperature.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Main power input | Supplies internal logic and gate drivers; decoupling required near pin |
| VDD | Internal LDO output | 5 V, 50 mA LDO for gate driver bias; bypassed with 1 µF ceramic capacitor |
| PHASE | High-side MOSFET source node | Connects to drain of high-side FET and source of low-side FET; used for RDS(on) current sensing |
| VSENSE+ | Positive remote sense input | Differential input for accurate output voltage feedback at load point |
| COMP | Error amplifier compensation node | External RC network sets loop stability and transient response |
| EN | Enable input | Active-high logic input; 1.25 V threshold with hysteresis for controlled startup |
| PGOOD | Power-good open-drain output | Asserts after output reaches 90% of target and remains stable for ≥10 ms |
Key Features
| Feature | Design Value |
|---|---|
| Voltage-mode PWM control | Enables predictable loop compensation and stable operation with standard Type II/III networks |
| Integrated 5 V / 50 mA LDO | Eliminates need for external bias supply; powers gate drivers and internal circuitry |
| RDS(on) current sensing | Reduces component count and conduction losses versus shunt-based sensing |
| Programmable soft-start | Adjustable 0.5–10 ms ramp time prevents inrush current and output overshoot |
| Synchronization input (SYNC) | Accepts external clock up to 1 MHz to eliminate beat frequencies in multi-rail systems |
Applications
| Server VRM | Telecom Rectifier Module |
|---|---|
Use Scenario: Regulating 12 V intermediate bus to 1.2 V CPU core voltage in dual-socket rack servers. IC Role / Device Role / Timing Role: Primary voltage-mode buck controller managing high-current, low-voltage POL conversion with remote sensing. Use Value: Enables tight output regulation (±1%) under dynamic load steps up to 50 A/µs while minimizing board area via RDS(on) sensing. | Use Scenario: Generating 3.3 V and 5 V rails from 48 V backplane in distributed power architecture telecom systems. IC Role / Device Role / Timing Role: Synchronous buck controller operating in parallel configuration with phase interleaving for reduced input/output ripple. Use Value: Delivers >92% peak efficiency at 20 A load and supports synchronization to system clock for EMI compliance. |
| Industrial PLC Power Supply | Network Switch ASIC Core Supply |
Use Scenario: Providing isolated 1.8 V supply for FPGA I/O banks in programmable logic controllers with extended temperature requirements. IC Role / Device Role / Timing Role: Buck controller with thermal shutdown and UVLO ensuring reliable operation in harsh industrial environments. Use Value: Maintains regulation across −40°C to +85°C ambient with no derating, supported by 150°C thermal shutdown. | Use Scenario: Delivering 0.85 V at up to 25 A to high-performance switch ASICs in 10 GbE data center switches. IC Role / Device Role / Timing Role: High-accuracy, low-noise POL controller with differential remote sensing for sub-100 mV output tolerance. Use Value: Achieves 0.6 V reference accuracy (±1%) and <15 mV output ripple, critical for ASIC timing margin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL6269CRZ-T | Uses current-mode control; lacks integrated LDO; requires external 5 V bias | Better transient response but higher BOM count; no RDS(on) sensing | Prefer when fast load-step response is prioritized over component count and thermal performance |
| TPS54620RGYR | Integrated MOSFETs (40 V, 6 A); lower max output current; fixed 600 kHz frequency | Single-chip solution for ≤6 A loads; not suitable for high-current POL with discrete FETs | Select only for space-constrained, medium-current designs where integration outweighs efficiency and scalability needs |
Compared with ISL6269CRZ-T and TPS54620RGYR, the IRU3012CWTR uniquely combines voltage-mode control stability, integrated gate-driver bias, and RDS(on) sensing-making it optimal for scalable, high-current, thermally demanding server and telecom POL designs.
Availability
IRU3012CWTR is available at Aetrix Electronics and suitable for server VRMs, telecom rectifier modules, and industrial PLC power supplies requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for IRU3012CWTR 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
Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive, and industrial control ICs, with global manufacturing and quality certification to ISO 9001 and IATF 16949.
The IRU3012CWTR belongs to Infineon's IRU series of high-performance DC-DC controllers, developed specifically for high-efficiency, high-current point-of-load regulation in datacenter and communications infrastructure.
FAQ
What is the recommended minimum output capacitance for IRU3012CWTR?
The datasheet specifies a minimum 220 µF total output capacitance using low-ESR polymer or MLCC capacitors. This value ensures stable loop response and limits output voltage deviation to <1% during 10 A load steps. Layout must minimize trace inductance between capacitor bank and VOUT/VSENSE nodes.
Does IRU3012CWTR support multiphase operation?
Yes - IRU3012CWTR supports phase interleaving via its SYNC pin and dedicated current-sharing pins (CS+, CS−). Up to four controllers can be synchronized with 90° phase offset to reduce input ripple current and improve thermal distribution across multiple phases.
Can IRU3012CWTR drive both N-channel high-side and low-side MOSFETs?
Yes - the IC integrates dual 1.5 A peak gate drivers optimized for N-channel MOSFETs. The high-side driver uses bootstrap charging (via BOOT and BST pins), and the low-side driver operates referenced to power ground, enabling efficient synchronous rectification without external level shifters.
What is the function of the PHASE pin?
The PHASE pin connects to the source of the high-side MOSFET and drain of the low-side MOSFET. It serves as the sensing node for RDS(on)-based current measurement and provides timing information for adaptive dead-time control to prevent shoot-through during switching transitions.
IRU3012CWTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 20-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- -
- Output Configuration:
- -
- Topology:
- -
- Output Type:
- -
- Number of Outputs:
- -
- Voltage - Input (Min):
- -
- Voltage - Input (Max):
- -
- Voltage - Output (Min/Fixed):
- -
- Voltage - Output (Max):
- -
- Current - Output:
- -
- Frequency - Switching:
- -
- Synchronous Rectifier:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-SOIC
IRU3012CWTR FAQ
1.How can I place an order for IRU3012CWTR through Aetrix?
Please submit a Request for Quotation (RFQ) for IRU3012CWTR 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 IRU3012CWTR reliable?
The price and inventory of IRU3012CWTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRU3012CWTR is usually 5 days.
3.What payment methods are accepted for IRU3012CWTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRU3012CWTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IRU3012CWTR?
IRU3012CWTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IRU3012CWTR 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 IRU3012CWTR?
For technical support, including IRU3012CWTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRU3012CWTR requirements.
6.How does Aetrix verify that IRU3012CWTR is sourced from the original manufacturer or authorized distributors?
All IRU3012CWTR 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 IRU3012CWTR meets industry standards.
7.What is the process for return or replacement of IRU3012CWTR?
All IRU3012CWTR units undergo pre-shipment inspection (PSI). If there is an issue with IRU3012CWTR, 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 IRU3012CWTR part is unused and in its original packaging.
Return procedure for IRU3012CWTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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