IR3889MTRPBF - 30A Synchronous Buck Regulator | Infineon
MPN: IR3889MTRPBF β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.82 | $1.82 |
| 10 | $1.65 | $16.50 |
| 100 | $1.45 | $145.00 |
| 500 | $1.3 | $650.00 |
| 1,000 | $1.2 | $1,200.00 |
Drop-in alternatives for IR3889MTRPBF β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
IR3889MTRPBFAUMA1
β Drop-Inπ Reference alternative (not in catalog)
IR3889MTRPBF
β Drop-Inβ In Stock
$1.2 / Unit
View Datasheet βIR3889MTRPBF Maximum Ratings & Electrical Characteristics
| Output Current | 30 A |
| Input Voltage Range | 4.3 V to 17 V (2.0 V to 17 V with external VCC) |
| Output Voltage Range | 0.8 V to [DATA_NEEDED: max output voltage] |
| Reference Voltage | 0.8 V Β±0.5% |
| Control Scheme | Fast Constant-On-Time (COT) |
| Switching Frequency | [DATA_NEEDED: switching frequency range] |
| Efficiency | [DATA_NEEDED: typical efficiency] |
| Package | QFN 5 mm x 6 mm |
| Mounting Type | Surface Mount |
| Operating Temperature Range | [DATA_NEEDED: operating temperature range] |
| Integrated MOSFETs | Yes (OptiMOSβ’) |
| Bootstrap Diode | Integrated |
| Output Capacitor Type | Ceramic (stable) |
| Protection Features | Overcurrent, Overvoltage, Overtemperature |
| RoHS Status | Compliant |
IR3889MTRPBF Pin Configuration
| Pin 1 | VIN β Input voltage supply |
| Pin 2 | VIN β Input voltage supply |
| Pin 3 | VIN β Input voltage supply |
| Pin 4 | VIN β Input voltage supply |
| Pin 5 | VIN β Input voltage supply |
| Pin 6 | VIN β Input voltage supply |
| Pin 7 | VIN β Input voltage supply |
| Pin 8 | VIN β Input voltage supply |
| Pin 9 | VIN β Input voltage supply |
| Pin 10 | VIN β Input voltage supply |
| Pin 11 | VIN β Input voltage supply |
| Pin 12 | VIN β Input voltage supply |
| Pin 13 | VIN β Input voltage supply |
| Pin 14 | VIN β Input voltage supply |
| Pin 15 | VIN β Input voltage supply |
| Pin 16 | VIN β Input voltage supply |
| Pin 17 | VIN β Input voltage supply |
| Pin 18 | VIN β Input voltage supply |
| Pin 19 | VIN β Input voltage supply |
| Pin 20 | VIN β Input voltage supply |
| Pin 21 | VIN β Input voltage supply |
| Pin 22 | VIN β Input voltage supply |
| Pin 23 | VIN β Input voltage supply |
| Pin 24 | VIN β Input voltage supply |
| Pin 25 | VIN β Input voltage supply |
| Pin 26 | VIN β Input voltage supply |
| Pin 27 | VIN β Input voltage supply |
| Pin 28 | VIN β Input voltage supply |
| Pin 29 | VIN β Input voltage supply |
| Pin 30 | VIN β Input voltage supply |
| Pin 31 | VIN β Input voltage supply |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
IR3889MTRPBF is suitable for 6 applications: FPGA Power Supply, Networking Equipment, Server and Storage, Telecom Infrastructure, Industrial Automation, Data Center Power.
FPGA Power Supply
The IR3889MTRPBF provides up to 30A output current with fast transient response, making it ideal for powering FPGAs that require high current and tight voltage regulation. Its COT control ensures stability with ceramic capacitors, reducing board space and BOM cost. The wide input voltage range supports various intermediate bus voltages, and the integrated MOSFETs simplify layout.
Recommended
Networking Equipment
In networking equipment such as switches and routers, the IR3889MTRPBF delivers high efficiency and high current for powering ASICs and NPUs. Its small QFN package allows dense board layouts, and the fast COT control provides excellent load transient response, ensuring stable operation during burst traffic. The integrated bootstrap diode reduces external component count.
Recommended
Server and Storage
The IR3889MTRPBF is well-suited for server and storage applications where high current and high efficiency are critical. It can power CPUs, GPUs, and memory modules with up to 30A, and its wide input range accommodates 12V rails. The device's thermal performance is enhanced by the QFN package's exposed pad, which should be connected to a large copper area.
Recommended
Telecom Infrastructure
For telecom base stations and infrastructure, the IR3889MTRPBF provides reliable power delivery with high efficiency. Its input voltage range of 4.3V to 17V supports standard telecom rails, and the fast COT control ensures stable operation under varying loads. The integrated protection features enhance system reliability.
Recommended
Industrial Automation
In industrial automation, the IR3889MTRPBF powers PLCs, motor controllers, and sensors with high current and reliability. Its wide input range and robust protection features make it suitable for harsh environments. The compact package allows for space-constrained designs, and the COT control simplifies compensation.
Recommended
Data Center Power
The IR3889MTRPBF is ideal for data center power distribution, providing high-efficiency step-down conversion for racks and boards. Its 30A output current and fast transient response meet the demands of high-performance computing. The device's small footprint and integrated MOSFETs enable high power density.
Recommended
Engineering reference data for IR3889MTRPBF β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | IR3889MTRPBFAUMA1 | TPS53315 |
|---|---|---|---|
| Package | QFN 5 mm x 6 mm | QFN 5 mm x 6 mm | QFN-24 |
| Brand | Infineon | Infineon | Texas Instruments |
| Output Current | 30 A | 30 A | 30 A |
| Input Voltage Range | 4.3V to 17V | 4.3V to 17V | 4.5V to 28V |
| Control Scheme | Fast COT | Fast COT | D-CAPβ’ |
| Integrated MOSFETs | Yes | Yes | Yes |
| Reference Voltage | 0.8V Β±0.5% | 0.8V Β±0.5% | 0.6V Β±1% |
| Switching Frequency | [DATA_NEEDED] | [DATA_NEEDED] | 300kHz to 1MHz |
Key Differentiators
- Integrated OptiMOSβ’ MOSFETs (vs TPS53315)
- Fast COT control (vs TPS53315)
- Compact QFN package (vs TPS53315)
Design Notes
For optimal thermal performance, solder the exposed pad of the QFN package to a large copper area on the PCB. Use multiple vias to connect the pad to inner ground planes. Ensure adequate copper thickness for high current paths.
Select input and output capacitors according to the datasheet guidelines. The COT control is stable with ceramic capacitors, but a minimum output capacitance is required. Use low-ESR ceramic capacitors placed close to the IC to minimize parasitic inductance.
Avoid exceeding the absolute maximum input voltage of 17V. When using an external VCC, ensure it is within the specified range. Also, verify the switching frequency setting to avoid interference with sensitive circuits.
Compliance Information
RoHS compliant per Infineon product page. Not AEC-Q100 qualified.
