My Inquiry
My Account
Infineon Technologies IR3558MTRPBF
- Part No.:
- IR3558MTRPBF
- Manufacturer:
- Infineon Technologies
- Category:
- Full Half-Bridge (H Bridge) Drivers
- Package:
- 28-PowerVQFN
- Datasheet:
-
IR3558MTRPBF.pdf
- Description:
- IC HALF BRIDGE DRIVER 45A PQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,690
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
IR3558MTRPBF from Infineon Technologies (formerly International Rectifier) is a 45A integrated PowIRstage® synchronous buck power stage combining gate driver, control MOSFET, synchronous MOSFET, and integrated Schottky diode in a single PQFN package. It operates from 4.5V–15V input, delivers up to 94.0% peak efficiency at 1.2V output, supports 1.0MHz switching, and features programmable thermal flag (70°C–150°C) for CPU/GPU core power delivery in server-grade VRMs.
For engineers reviewing the IR3558MTRPBF datasheet, IR3558MTRPBF pinout, IR3558MTRPBF application, or IR3558MTRPBF equivalent, key selection criteria include its dual PWM logic support (3.3V tri-state or IR Active Tri-Level), separate HVCC/LVCC rails for efficiency optimization, 5mm × 6mm footprint compatibility with IR3551, and PCB-optimized dual-sided cooling architecture.
Technical Context
The IR3558 integrates a high-side control MOSFET and low-side synchronous MOSFET with co-located gate drivers and internal Schottky diode for body-diode conduction during dead time. Its custom-timed driver-MOSFET pairing minimizes switching losses and enables stable operation up to 1.0MHz under 45A DC load.
It supports two distinct PWM interface modes: standard 3.3V tri-state logic (VPWM_HIGH = 2.5V typ.) and IR's proprietary Active Tri-Level (ATL) logic (VATL_HIGH = 1.0V typ., VATL_TRI_HIGH = 2.5V typ.), eliminating the need for a dedicated Body-Braking® pin and improving transient response during load release.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 45A DC continuous - supports high-current CPU/GPU core rails without external current sharing. |
| Peak Efficiency | 94.0% at 1.2V/300kHz - reduces thermal load and enables compact VRM designs in space-constrained servers. |
| Switching Frequency | 200–1000 kHz - allows use of small 150nH inductors and miniaturized ceramic input/output capacitors. |
| Thermal Flag Range | 70°C to 150°C (programmable via OTSET resistor) - enables precise thermal protection alignment with board-level hot spots. |
| PWM Logic Options | 3.3V tri-state or IR Active Tri-Level (ATL) - eliminates external braking circuitry and improves light-load transient recovery. |
| Input Voltage Range | VIN: 4.5V–15V; HVCC/LVCC: 4.5V–13.2V - decoupled bias rails reduce driver loss and improve efficiency across wide input conditions. |
| Package | 28-pin PQFN, 5mm × 6mm × 0.9mm - enables dual-sided PCB cooling and matches IR3551 pinout for drop-in layout reuse. |
Pinout & Package
IR3558MTRPBF uses a 28-lead, 5mm × 6mm, 0.9mm-thin PQFN package with exposed thermal pad (PGND-connected) for efficient bottom-side heat transfer. Dual-sided cooling is enabled by top-side SW/VIN thermal pads and bottom-side PGND/LGND copper area.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VCC | Bias supply for control logic | 5V ±0.5V rail with UVLO (3.8V start); requires ≥0.1µF decoupling to LGND for stable reference. |
| 2 LVCC / 3 HVCC | Low-/high-side driver supplies | Independent 4.5V–13.2V rails optimize gate drive strength and minimize cross-conduction loss. |
| 4,14,15,27 PGND | Power ground return path | Multi-pin Kelvin connection for low-inductance synchronous FET source return and thermal pad anchoring. |
| 5,28 GATEL | Low-side gate driver output test points | Accessible waveform monitoring nodes-no internal buffering; direct connection to MOSFET gate. |
| 6–13 SW | Switch node | High-current AC node connecting high-side drain, low-side source, and inductor; requires tight layout to minimize ringing. |
| 16–19 VIN | Main input power input | Four parallel high-current paths for ≤20A RMS per pin; mandates local 10µF + 0.1µF ceramic decoupling. |
| 20 BOOST | Bootstrap capacitor connection | Charges high-side driver bootstrap capacitor; max BOOST–SW = 15V; requires low-inductance 0.22µF placement. |
| 21 OT# | Open-drain overtemperature fault output | Active-low signal with 1.5mA sink capability; pulls low when junction exceeds programmed OT threshold. |
| 22 PWM | PWM control input | Accepts either 3.3V tri-state (2.5V high threshold) or IR ATL logic (1.0V high, 2.5V tri-level) without level-shifting. |
| 23 EN | Enable control input | 3.3V-compatible logic enable; high = active, low = shutdown with <2.5mA VCC quiescent current. |
| 24 LGND | Signal ground reference | Separate analog/digital substrate reference; must be connected to system ground with low-impedance path. |
| 25 MODE | PWM mode selection | Ground = tri-state mode; connect to VCC = ATL mode; sets internal logic decoding path. |
| 26 OTSET | Overtemperature threshold programming | Resistor-to-ground sets trip point from 70°C (100kΩ) to 150°C (open); no external bias required. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Schottky diode | Reduces body-diode conduction loss during dead time, improving light-load efficiency and eliminating external diode. |
| Separate HVCC and LVCC rails | Enables independent optimization of high- and low-side gate drive voltage, reducing driver power loss by ~30% vs. single-rail designs. |
| IR Active Tri-Level (ATL) PWM | Replaces traditional three-wire (PWM/BB/EN) interface with two-wire signaling, simplifying controller routing and improving load-release transient response. |
| Programmable thermal flag | Adjustable OT threshold (70°C–150°C) via single external resistor allows thermal protection tuning without firmware or hardware revision. |
| PCB footprint compatibility with IR3551 | Shared pinout for VIN, SW, PGND, and PWM pins enables layout reuse and migration path from 50A IR3551 to 45A IR3558 in space-constrained designs. |
Applications
| Server CPU Core VRM | GPU Power Delivery |
|---|---|
|
Use Scenario: High-density 2U/1U rack servers requiring >40A per phase at 0.8–1.2V with strict thermal envelope limits. IC Role / Device Role / Timing Role: Single-phase synchronous buck power stage providing gate drive, power switching, and thermal monitoring. Use Value: 94% peak efficiency and 2.6°C/W θJB enable operation at 125°C junction without heatsink, reducing BOM cost and board area. |
Use Scenario: Discrete GPU modules (e.g., NVIDIA A100, AMD MI250X) demanding fast load transients and multi-phase scalability. IC Role / Device Role / Timing Role: Integrated power stage supporting 1MHz switching and ATL logic for sub-100ns load-step response. Use Value: Eliminates external braking circuitry and reduces phase count by 20% versus discrete MOSFET solutions while maintaining <50mV droop. |
| DDR5 Memory VDDQ Regulator | AI Accelerator Core Supply |
|
Use Scenario: DDR5 DIMMs requiring tightly regulated 1.25V/40A VDDQ with low noise and high PSRR. IC Role / Device Role / Timing Role: Low-noise, high-bandwidth power stage synchronized to memory controller timing signals. Use Value: Dual-sided cooling and 0.9mm profile allow placement directly behind DIMM slots, minimizing trace inductance and improving voltage regulation. |
Use Scenario: Edge AI inference accelerators (e.g., Google TPU v4, Groq LPU) needing scalable, thermally robust core supplies. IC Role / Device Role / Timing Role: Modular power stage enabling N+1 redundant phase design with shared OT# fault signaling across phases. Use Value: Programmable OTSET and open-drain OT# allow centralized thermal management across 8+ phases without additional logic ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar integrated power stage applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IR3551MTRPBF | 50A rated, identical 5mm×6mm PQFN package, same pinout for VIN/SW/PGND/PWM, but lacks OTSET programmability and ATL mode. | Higher current capacity suits legacy server platforms with fixed thermal margins; no software-configurable OT threshold. | Select when maximum current headroom is prioritized over thermal adaptability or advanced PWM interface features. |
| MP87653GL-Z | 40A Monolithic Buck Converter (not PowIRstage®), integrates controller + power stage; fixed 600kHz fSW; no ATL or OTSET. | Reduces external component count but sacrifices layout flexibility and thermal customization; not pin-compatible. | Choose for cost-sensitive, lower-complexity designs where full integration outweighs thermal tuning and interface flexibility. |
Compared with IR3551MTRPBF and MP87653GL-Z, the IR3558MTRPBF uniquely balances programmable thermal protection, dual PWM logic support, and 45A capability within a layout-reusable 5mm×6mm footprint-making it optimal for next-gen server and AI hardware requiring both density and configurability.
Availability
IR3558MTRPBF is available at Aetrix Electronics and suitable for server CPU VRMs, GPU power delivery systems, and DDR5 memory regulators requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for IR3558MTRPBF 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 acquired International Rectifier in 2015 and continues to develop high-performance power semiconductors for computing, industrial, and automotive markets.
The IR3558 belongs to Infineon's PowIRstage® product line-engineered specifically for high-efficiency, high-current DC-DC conversion in datacenter and AI accelerator applications where thermal density and layout simplicity are critical.
FAQ
What PWM logic modes does the IR3558MTRPBF support, and how are they selected?
The IR3558MTRPBF supports two PWM logic modes: standard 3.3V tri-state and Infineon's proprietary Active Tri-Level (ATL). Selection is controlled by the MODE pin: grounding it selects tri-state mode, while connecting it to VCC activates ATL mode. ATL eliminates the need for a separate Body-Braking® pin and improves transient response during load release by encoding three states (high, low, tri-state) on a single wire.
How is the overtemperature threshold programmed on the IR3558MTRPBF?
The overtemperature threshold is set using an external resistor (ROTSET) between the OTSET pin and ground. With OTSET floating, the default threshold is 150°C. A 100kΩ resistor sets the threshold to 125°C, and values down to ~10kΩ can achieve 70°C. The relationship is monotonic and specified in the datasheet's "Over Temperature Threshold Set Resistor" table-no external voltage or bias is required.
Can the IR3558MTRPBF be used in multi-phase VRM designs, and what synchronization features does it offer?
Yes, the IR3558MTRPBF is designed for multi-phase operation. It accepts externally generated PWM signals and provides no internal clock or phase synchronization logic-phasing is managed entirely by the upstream controller. Its open-drain OT# output supports wired-OR fault signaling across phases, enabling centralized thermal fault detection without additional logic components.
What are the critical PCB layout requirements for achieving rated 45A performance with the IR3558MTRPBF?
To sustain 45A DC, the PCB must provide low-impedance, high-copper-weight paths: ≥2 oz copper on inner layers for VIN/SW/PGND; thermal vias under the exposed pad (pins 14–15) tied to internal ground planes; localized 10µF ceramic caps on each VIN pin pair; and minimal loop area between BOOST, SW, and PGND. The datasheet specifies 8-layer board construction with 3.7" × 2.6" dimensions and 400LFM airflow for rated thermal performance.
IR3558MTRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- PowIRstage®
- Package/Case:
- 28-PowerVQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Half Bridge
- Applications:
- Synchronous Buck Converters, Voltage Regulators
- Interface:
- PWM
- Load Type:
- Inductive
- Technology:
- Power MOSFET
- Rds On (Typ):
- -
- Current - Output / Channel:
- 45A
- Current - Peak Output:
- -
- Voltage - Supply:
- 4.5V ~ 5.5V
- Voltage - Load:
- 4.5V ~ 15V
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Features:
- Bootstrap Circuit, Status Flag
- Fault Protection:
- Over Temperature, UVLO
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PQFN (5x6)
IR3558MTRPBF FAQ
1.How can I place an order for IR3558MTRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for IR3558MTRPBF 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 IR3558MTRPBF reliable?
The price and inventory of IR3558MTRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IR3558MTRPBF is usually 5 days.
3.What payment methods are accepted for IR3558MTRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IR3558MTRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IR3558MTRPBF?
IR3558MTRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IR3558MTRPBF 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 IR3558MTRPBF?
For technical support, including IR3558MTRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IR3558MTRPBF requirements.
6.How does Aetrix verify that IR3558MTRPBF is sourced from the original manufacturer or authorized distributors?
All IR3558MTRPBF 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 IR3558MTRPBF meets industry standards.
7.What is the process for return or replacement of IR3558MTRPBF?
All IR3558MTRPBF units undergo pre-shipment inspection (PSI). If there is an issue with IR3558MTRPBF, 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 IR3558MTRPBF part is unused and in its original packaging.
Return procedure for IR3558MTRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
IR3558MTRPBF Tags
-
NCP1393BDR2G
onsemi
-
A3909GLNTR-T
Allegro MicroSystems
-
NCP51530BDR2G
onsemi
-
A3909GLYTR-T
Allegro MicroSystems
-
SIC631CD-T1-GE3
Vishay Siliconix
-
BTN70301EPAXUMA1
Infineon Technologies
-
TDA21520AUMA1
Infineon Technologies
-
AOZ5116QI
Alpha & Omega Semiconductor Inc.
-
IRSM005-301MHTR
Infineon Technologies
-
IRSM005-301MH
Infineon Technologies
-
MP6610GJ-Z
Monolithic Power Systems Inc.
-
DRV8908QPWPRQ1
Texas Instruments
Tech Hub
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
Engineering guide to dynamic load response testing for high-current buck converters, covering load step setup, slew rate, Vcore undershoot, overshoot, recovery time, probe location, output capacitors a…
