IRPS5401MTRPBF - 5-Output Digital PMIC QFN-56 | Infineon
MPN： IRPS5401MTRPBF ✓ 啟用中IRPS5401MTRPBF 概覽
A PMIC is a specialized power management IC that consolidates voltage regulation, sequencing, monitoring, and protection into one package. In the power-management hierarchy it sits above individual buck converters and LDOs, adding digital control and telemetry. The IRPS5401MTRPBF exemplifies this integration, replacing multiple discrete regulators and reducing board area in high-density systems.
Key features include digital configuration via the PMBus interface using Infineon's PowIRCenter tool, Adaptive Voltage Scaling (AVS) support, real-time monitoring of voltage, current, and temperature, and support for external power stages up to 50A. Comprehensive protection covers overcurrent, overvoltage, and overtemperature shutdown. The exposed-pad QFN-56 package delivers strong thermal performance for high power density.
Technically, the device uses a digital control loop with programmable switching frequency, allowing optimization between efficiency and transient response. Sequencing and margining functions are critical for multi-rail loads such as FPGAs, ASICs, and processors. The integrated LDO supplies a low-noise rail for sensitive analog circuits.
Typical applications include server and storage systems, networking and telecom infrastructure, and high-performance embedded computing where multiple precisely sequenced rails are required.
Design considerations: provide proper input decoupling, add the recommended 2 ohm-1uF Vcc-to-VDRV filter, bypass the LDO output with a 1.0uF capacitor to analog ground (pin 50), and solder the exposed pad to a generous copper area for heat dissipation.
直接替換替代品，適用於 IRPS5401MTRPBF — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
IRPS5402MTRPBF
⚡ 相同封裝 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
IRPS5401M
✅ 直接替換📋 參考替代品（不在目錄中）
IR3889MTRPBF
⚡ 相同封裝聯絡詢價
查看資料表 →IRPS5401MTRPBF 最大額定值與電氣特性
| 拓撲 | 4 switching bucks + 1 LDO |
| Switching Regulator Currents | 4 A, 4 A, 2 A, 2 A |
| LDO Output Current | 500 mA (source/sink) |
| 輸入電壓範圍 | 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 |
| 輸出數量 | 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 |
| 封裝 | QFN-56 (7x7 mm), exposed pad |
| 安裝類型 | Surface Mount |
| RoHS 狀態 | Compliant (RoHS) |
IRPS5401MTRPBF 腳位配置
| 腳位 50 | AGND (LDO bypass reference) — Analog ground; LDO output bypassed here with 1.0uF capacitor per Infineon datasheet |
| 腳位 [DATA_NEEDED: pin number] | VCC — IC supply; 1.0uF bypass capacitor recommended, filtered to VDRV via 2 ohm-1uF network |
| 腳位 [DATA_NEEDED: pin number] | VDRV — Gate driver supply node; 2 ohm-1uF filter from Vcc |
| 腳位 [DATA_NEEDED: pin number] | PMBUS_SDA / PMBUS_SCL — PMBus digital interface for configuration and telemetry |
| 腳位 [DATA_NEEDED: pin number] | VSEN/VRTN (outputs A-D) — Remote sense inputs, 20k ohm internal pull-up to 1V rail; keep external impedance low to avoid offset |
| 腳位 [DATA_NEEDED: pin number] | EPAD — Exposed thermal pad; solder to large copper area for heat dissipation |
典型應用
IRPS5401MTRPBF 適用於 6 應用s: 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.
推薦
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.
推薦
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.
推薦
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.
推薦
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.
推薦
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.
推薦
推薦產品摘要
工程參考資料，適用於 IRPS5401MTRPBF — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | 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) |
| Integrated LDO | Yes, 500 mA source/sink (0.5-3.6 V) | Yes (family feature) | No | No |
主要差異化特點
- Five integrated outputs in one package (對比IR3889MTRPBF)
- Expandable to 50A via external power stages (對比IRPS5402MTRPBF)
- Integrated source/sink LDO (對比TPS53622RSBT)
設計說明
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.
合規資訊
TRPBF suffix indicates RoHS-compliant, lead-free packaging. Infineon community confirmed no automotive-grade variant exists for IRPS5401MTRPBF (as of Aug 2025).
