IRPS5401MTRPBF - 5-Output Digital PMIC QFN-56 | Infineon
MPN: IRPS5401MTRPBF β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1 | $1.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
Drop-in alternatives for IRPS5401MTRPBF 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:
IRPS5402MTRPBF
β‘ Same Package β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
IRPS5401M
β Drop-Inπ Reference alternative (not in catalog)
IR3889MTRPBF
β‘ Same Packageβ In Stock
$1.82 / Unit
View Datasheet βIRPS5401MTRPBF Maximum Ratings & Electrical Characteristics
| Topology | 4 switching bucks + 1 LDO |
| Switching Regulator Currents | 4 A, 4 A, 2 A, 2 A |
| LDO Output Current | 500 mA (source/sink) |
| Input Voltage Range | 5.5 V to 12 V |
| Buck Output Voltage Range | 0.25 V to 5.1 V (outputs A-D) |
| LDO Output Voltage Range | 0.5 V to 3.6 V |
| Number of Outputs | 5 |
| Digital Interface | PMBus / AVS |
| External Power Stage Support | Up to 50 A |
| Protection Features | Overcurrent, overvoltage, overtemperature shutdown |
| Configuration Tool | Infineon PowIRCenter |
| Family | SupIRBuck |
| Package | QFN-56 (7x7 mm), exposed pad |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant (RoHS) |
IRPS5401MTRPBF Pin Configuration
| Pin 50 | AGND (LDO bypass reference) β Analog ground; LDO output bypassed here with 1.0uF capacitor per Infineon datasheet |
| Pin [DATA_NEEDED: pin number] | VCC β IC supply; 1.0uF bypass capacitor recommended, filtered to VDRV via 2 ohm-1uF network |
| Pin [DATA_NEEDED: pin number] | VDRV β Gate driver supply node; 2 ohm-1uF filter from Vcc |
| Pin [DATA_NEEDED: pin number] | PMBUS_SDA / PMBUS_SCL β PMBus digital interface for configuration and telemetry |
| Pin [DATA_NEEDED: pin number] | VSEN/VRTN (outputs A-D) β Remote sense inputs, 20k ohm internal pull-up to 1V rail; keep external impedance low to avoid offset |
| Pin [DATA_NEEDED: pin number] | EPAD β Exposed thermal pad; solder to large copper area for heat dissipation |
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
IRPS5401MTRPBF is suitable for 6 applications: Server and Data Center Power, FPGA Carrier Card Power, Networking and Telecom Equipment, Storage Systems and SSD Backplanes, Embedded Computing and ASIC Power, Low-Noise Analog Rail Supply.
Server and Data Center Power
The IRPS5401MTRPBF fits server and storage power systems where multiple tightly sequenced rails feed CPUs, FPGAs, and memory. Its 5.5V to 12V input accepts a standard 12V intermediate bus, and its four buck outputs (4A, 4A, 2A, 2A) plus a 500mA LDO replace several discrete converters, cutting board area in dense sleds. PMBus telemetry enables rack-level health monitoring, while the option to drive external power stages up to 50A covers high-current core rails.
Recommended
FPGA Carrier Card Power
The IRPS5401MTRPBF is a recommended power solution for FPGA carrier cards, including UltraScale+ designs discussed on the element14 Avnet community. Its PMBus-controlled sequencing guarantees core-before-I/O rail order, margining supports power-over-shutdown testing, and buck outputs adjustable from 0.25V to 5.1V cover VCCINT, VCCO, and auxiliary rails. The integrated 500mA LDO provides a clean analog rail for transceivers or clocking.
Recommended
Networking and Telecom Equipment
In routers, switches, and optical line cards, the IRPS5401MTRPBF consolidates five rails in one 7x7 mm QFN-56, freeing layout area near high-speed PHYs and ASICs. Digital control via PMBus allows in-system output trimming to compensate for distribution drops, and overcurrent/overvoltage protection protects expensive silicon. Its single 12V input matches telecom intermediate bus shelves, simplifying front-end architecture.
Recommended
Storage Systems and SSD Backplanes
Storage controllers and SSD accelerator cards need several low-voltage rails with precise sequencing and fault reporting. The IRPS5401MTRPBF delivers 4A and 2A bucks adjustable down to 0.25V for core and PHY loads, while PMBus telemetry of voltage, current, and temperature supports enterprise RAS features. Its compact integration reduces component count compared to discrete multichannel solutions.
Recommended
Embedded Computing and ASIC Power
For high-performance embedded computing (VPX, COM Express, proprietary blades), the IRPS5401MTRPBF powers ASICs and SoCs requiring Adaptive Voltage Scaling to minimize dynamic power. PMBus margining supports design validation across corners, and configurable switching frequency lets designers trade efficiency against transient response. External power stage support up to 50A extends coverage to demanding core rails.
Recommended
Low-Noise Analog Rail Supply
The integrated 500mA source/sink LDO of the IRPS5401MTRPBF generates a low-noise rail (0.5V to 3.6V) for ADC references, PLLs, and clocking circuits inside the same PMIC that powers digital loads, eliminating an external linear regulator. Infineon's datasheet specifies bypassing the LDO output with a 1.0uF capacitor to analog ground (pin 50) for stability and noise performance.
Recommended
Recommended Products Summary
Engineering reference data for IRPS5401MTRPBF β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | IRPS5402MTRPBF | IR3889MTRPBF | IRPS5401M |
|---|---|---|---|---|
| Package | QFN-56 (7x7 mm) | QFN-56 (7x7 mm) - same | QFN (Infineon) - similar family | QFN-56 (7x7 mm) - same |
| Brand | Infineon | Infineon | Infineon | Analog Devices |
| Number of Integrated Outputs | 5 (4 bucks + 1 LDO) | 5-output PMIC | 1 (single buck) | Controller only (2 phases) |
| Input Voltage Range | 5.5 V to 12 V | [DATA_NEEDED] | [DATA_NEEDED] | 4.5 V to 24 V (controller VIN) |
| Buck Output Current | 4 A, 4 A, 2 A, 2 A integrated | [DATA_NEEDED] | [DATA_NEEDED] (single channel) | External power stages required |
| Integrated LDO | Yes, 500 mA source/sink (0.5-3.6 V) | Yes (family feature) | No | No |
| Digital Interface | PMBus / AVS | PMBus / AVS | [DATA_NEEDED] | PMBus |
| External Power Stage Support | Up to 50 A | [DATA_NEEDED] | [DATA_NEEDED] | Yes (multiphase, controller-only) |
Key Differentiators
- Five integrated outputs in one package (vs IR3889MTRPBF)
- Expandable to 50A via external power stages (vs IRPS5402MTRPBF)
- Integrated source/sink LDO (vs TPS53622RSBT)
Design Notes
Per the Infineon IRPS5401M datasheet, add a 2 ohm-1uF filter from Vcc to VDRV and a 1.0uF bypass capacitor on Vcc. The Vsen/Vrtn sense inputs have a 20k ohm pull-up to an internal 1V rail, which draws some current in the sense lines - keep external impedance on these nets to a minimum to avoid output-voltage offset errors.
The QFN-56 exposed pad is the primary thermal path for four integrated bucks. Solder the pad to a large, well-vias copper pour on adjacent layers (thermal via array recommended) to keep junction temperature within limits at combined multi-output loads. Insufficient pad soldering is the most common cause of thermal shutdown in SupIRBuck PMIC layouts.
The reported Vout over PMBus is the DAC reference value, not the actual measured output, per the Infineon datasheet - do not use the reported value alone for calibration; verify with an external meter. Also, configure buck sequencing via PMBus/PowIRCenter before first power-up to prevent rail-order faults on FPGAs and processors.
Compliance Information
TRPBF suffix indicates RoHS-compliant, lead-free packaging. Infineon community confirmed no automotive-grade variant exists for IRPS5401MTRPBF (as of Aug 2025).
