My Inquiry
My Account
Infineon Technologies IR3088AMTRPBF
- Part No.:
- IR3088AMTRPBF
- Manufacturer:
- Infineon Technologies
- Category:
- Power Management - Specialized
- Package:
- 20-VFQFN Exposed Pad
- Datasheet:
-
IR3088AMTRPBF.pdf
- Description:
- IC XPHASE W/FAULT DET 20L-MLPQ
- Quantity:
- Payment:
- Shipping:
Inventory:4,691
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
IR3088AMTRPBF from Infineon Technologies is a multiphase buck converter Phase IC designed for high-current CPU/ASIC power delivery. It provides 2.5A average gate drive, loss-less inductor current sensing with internal DCR temperature compensation, sub-100ns minimum pulse width (enabling 1MHz per-phase operation), and programmable phase delay. It operates within a 6–25V VCCH range and integrates Body Braking™ for improved transient response in server VRMs.
For engineers reviewing the IR3088AMTRPBF datasheet, IR3088AMTRPBF pinout, IR3088AMTRPBF application, or IR3088AMTRPBF equivalent, key selection criteria include its 20-pin MLPQ thermal package, analog 5-wire XPhase™ bus interface, phase fault detection capability, and compatibility with IR3081A control ICs in scalable multi-phase designs.
Technical Context
The IR3088AMTRPBF implements feed-forward voltage-mode PWM control using an external RC network on PWMRMP to dynamically adjust ramp slope with input voltage changes-critical for maintaining regulation across wide VIN ranges due to PCB drop or silver-box variation. Its current sense amplifier delivers 34× gain with ±5mV offset and drives a single-wire ISHARE bus for inter-phase current sharing.
It features dual open-collector fault outputs: PHSFLT asserts low when phase current deviates from the ISHARE bus reference (indicating MOSFET failure or inductor saturation), while VRHOT triggers at user-programmable junction temperatures via HOTSET resistor divider. Both outputs require external pull-ups and support system-level fault coordination.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gate Drive Current | 2.5A average high-side (GATEH) and low-side (GATEL) drive supports fast switching of large synchronous MOSFETs. |
| Min Pulse Width | <100ns enables stable 1MHz per-phase operation for compact, high-density VRM designs. |
| Current Sense Gain | 34 V/V with ±5mV input offset ensures accurate DCR-based current monitoring across temperature. |
| VCCH Operating Range | 6–25V allows direct connection to boosted bootstrap supplies without external regulators. |
| ISHARE Bus Interface | Analog voltage output (V(DACIN) + 34×ΔV(CSIN)) enables passive current sharing across ≥2 phases without digital communication. |
| Body Braking™ | Disables synchronous MOSFET during turn-off to prevent negative output voltage and improve load-step recovery. |
| Phase Fault Detection | PHSFLT pin asserts low when sensed current fails to track ISHARE bus-detects open-phase, shorted FET, or inductor failure. |
Pinout & Package
IR3088AMTRPBF uses a thermally enhanced 20-lead MLPQ (4mm × 4mm, 0.5mm pitch) package with exposed thermal pad for high-power density applications. Pin functions are validated per Infineon datasheet Rev. 1.0 (May 2009).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RMPIN+ / RMPIN− | Ramp comparator inputs | Differential inputs for trailing-edge PWM timing; threshold set by Control IC's oscillator waveform crossing. |
| GATEH / GATEL | High-side / low-side gate drivers | 3A pulsed (100ns), 200mA DC outputs with non-overlap logic to prevent shoot-through. |
| CSIN+ / CSIN− | Current sense differential inputs | Connect across inductor DCR or sense resistor; enable loss-less current monitoring with internal temp compensation. |
| ISHARE | Current share bus output | Voltage = V(DACIN) + 34×(V(CSIN+) − V(CSIN−)); wired in parallel across all Phase ICs for analog current balancing. |
| PHSFLT / VRHOT | Open-collector fault outputs | Active-low signals requiring external pull-up; indicate phase current mismatch or over-temperature condition. |
| DACIN | Reference voltage input | Accepts VID voltage from Control IC; serves as common reference for PWM, current sense, and fault comparators. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Phase Delay | Set via RPHS1/RPHS2 resistor divider on LGND–BIASIN; enables precise interleaving across up to 8 phases. |
| Loss-Less Inductor Sensing | Uses inductor DCR voltage drop instead of shunt resistors-eliminates power loss and board space for current measurement. |
| Internal DCR Temp Compensation | Adjusts current sense gain vs. temperature to maintain accuracy across −40°C to +125°C junction range. |
| Sub-100ns Minimum Pulse Width | Supports 1MHz per-phase switching-reduces output capacitance and improves transient response in high-performance VRMs. |
| Body Braking™ | Forces low-side FET conduction during turn-off to clamp output and suppress negative voltage spikes during sudden load release. |
Applications
| Server Voltage Regulator Modules | High-Performance CPU Power Delivery |
|---|---|
|
Use Scenario: 8-phase VRM supplying 1.0V/150A to dual-socket Xeon Scalable processors in 1U rack servers. IC Role / Device Role / Timing Role: Phase IC managing one interleaved buck stage; synchronizes to IR3081A Control IC via 5-wire analog bus. Use Value: Enables <1% current imbalance across phases and <500ns load-step recovery using Body Braking™ and ISHARE bus. |
Use Scenario: 4-phase VRM powering AMD EPYC CPUs with dynamic VID scaling and adaptive frequency control. IC Role / Device Role / Timing Role: Gate driver and current monitor per phase; receives DACIN reference and PWMRMP ramp from Control IC. Use Value: Maintains tight voltage regulation (<±5mV) under 50A/µs load transients via loss-less DCR sensing and feed-forward ramp adjustment. |
| ASIC Core Power Supplies | High-Density Telecom Power Systems |
|
Use Scenario: 6-phase VRM delivering 0.85V/120A to AI accelerator ASICs in edge inference servers. IC Role / Device Role / Timing Role: Phase controller implementing programmable phase delay and VRHOT thermal shutdown for reliability-critical operation. Use Value: Prevents thermal runaway via user-configurable hot-spot detection (4.73mV/°C slope) and immediate phase disable on PHSFLT assertion. |
Use Scenario: Compact 3-phase VRM for 48V-to-12V intermediate bus conversion in 5G baseband units with strict EMI limits. IC Role / Device Role / Timing Role: High-frequency phase driver (1MHz) minimizing output capacitor count and board area. Use Value: Achieves >92% efficiency at 40A with 2.5A gate drive and optimized non-overlap timing-reducing switching losses and EMI noise. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multiphase buck phase controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IR3087MTRPBF | Lower gate drive (1.5A avg), no VRHOT output, fixed 500kHz max frequency (no 1MHz support) | Limited to ≤60A loads and non-thermal-critical applications; lacks programmable overtemp protection | Select only for cost-sensitive, lower-current designs where thermal margin is ample and 1MHz operation is unnecessary. |
| ISL6367IRZ | Integrated MOSFET drivers with digital SVID interface; requires SMBus host; no analog ISHARE bus | Designed for Intel VR12.x/VR13 platforms with digital control; incompatible with XPhase™ analog bus architecture | Choose only when migrating to digital control ecosystems-requires full redesign of Control IC and bus layout. |
Compared with IR3087MTRPBF and ISL6367IRZ, the IR3088AMTRPBF uniquely combines analog scalability, 1MHz capability, and integrated thermal/fault protection in a single-phase IC-making it irreplaceable in legacy XPhase™-based high-current VRMs requiring field-proven reliability.
Availability
IR3088AMTRPBF is available at Aetrix Electronics and suitable for server VRMs, high-performance CPU power delivery, and ASIC core supplies requiring stable component supply, long-lifecycle support, and qualified industrial-grade thermal performance.
Supply support for IR3088AMTRPBF 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 leadership in high-efficiency power conversion solutions.
The IR3088A belongs to Infineon's XPhase™ multiphase controller family, engineered specifically for scalable, analog-interleaved buck converters targeting high-current, low-voltage CPU/ASIC power delivery with minimal design overhead.
FAQ
What is the purpose of the ISHARE pin?
The ISHARE pin outputs a voltage equal to V(DACIN) + 34 × (V(CSIN+) − V(CSIN−)), forming an analog current-sharing bus. When connected across multiple IR3088A Phase ICs, it forces equal current distribution by adjusting each phase's PWM ramp slope via SCOMP-enabling precise inter-phase balancing without digital communication or master-slave arbitration.
How does Body Braking™ improve transient response?
Body Braking™ disables the synchronous MOSFET during converter turn-off and actively turns on the low-side FET to clamp the output node. This prevents negative voltage excursions caused by inductive kickback and accelerates recovery from heavy-to-light load steps-reducing output voltage undershoot by up to 40% compared to standard synchronous rectification.
Can IR3088AMTRPBF operate without a Control IC?
No. The IR3088AMTRPBF is a Phase IC and requires an XPhase™ Control IC (e.g., IR3081A) to provide DACIN reference, PWMRMP ramp, EAIN error signal, BIASIN voltage, and phase timing. It lacks internal oscillators, VID decoders, or system-level protection logic-functioning solely as a gate driver and current monitor per phase.
What is the maximum recommended switching frequency per phase?
The IR3088AMTRPBF supports stable operation up to 1MHz per phase, enabled by its sub-100ns minimum pulse width and fast gate drivers (22–50ns rise/fall times). At 1MHz, layout parasitics become critical-keep CSIN+/CSIN− traces matched and <5mm long, and place PWMRMP RC components within 2mm of the pin to maintain ramp fidelity and minimize jitter.
IR3088AMTRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- XPhase™
- Package/Case:
- 20-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Applications:
- Processor
- Current - Supply:
- 10mA
- Voltage - Supply:
- 8.4V ~ 14V
- Operating Temperature:
- 0°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-MLPQ (4x4)
IR3088AMTRPBF FAQ
1.How can I place an order for IR3088AMTRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for IR3088AMTRPBF 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 IR3088AMTRPBF reliable?
The price and inventory of IR3088AMTRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IR3088AMTRPBF is usually 5 days.
3.What payment methods are accepted for IR3088AMTRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IR3088AMTRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IR3088AMTRPBF?
IR3088AMTRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IR3088AMTRPBF 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 IR3088AMTRPBF?
For technical support, including IR3088AMTRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IR3088AMTRPBF requirements.
6.How does Aetrix verify that IR3088AMTRPBF is sourced from the original manufacturer or authorized distributors?
All IR3088AMTRPBF 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 IR3088AMTRPBF meets industry standards.
7.What is the process for return or replacement of IR3088AMTRPBF?
All IR3088AMTRPBF units undergo pre-shipment inspection (PSI). If there is an issue with IR3088AMTRPBF, 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 IR3088AMTRPBF part is unused and in its original packaging.
Return procedure for IR3088AMTRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
IR3088AMTRPBF Tags
-
TPS2511DGNR
Texas Instruments
-
UTC2000/MG
Microchip Technology
-
TUSB320HAIRWBR
Texas Instruments
-
TPS61252DSGR
Texas Instruments
-
PI5USB30216CXUAEX
Diodes Incorporated
-
SN6501DBVR
Texas Instruments
-
CYPD3177-24LQXQT
Infineon Technologies
-
SN6501QDBVRQ1
Texas Instruments
-
STUSB1600AQTR
STMicroelectronics
-
SN6505BDBVR
Texas Instruments
-
SN6501DBVT
Texas Instruments
-
TPS65150PWPR
Texas Instruments
Tech Hub
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…
Engineering guide to output capacitor selection for ASIC Vcore rails, covering bulk capacitors, polymer capacitors, MLCC decoupling, DC bias, ESR, ESL, placement, transient response and substitution ri…
Engineering guide to high-current ASIC Vcore rails, covering 12-phase buck architecture, PMBus control, dynamic load testing, output capacitor networks, smart power stage selection, thermal design and …
Voltage regulator guide covering linear, LDO, 7805, Zener, adjustable, buck, VRM and alternator regulators, with design checks, testing methods, troubleshooting and datasheet-based selection.
Amplifier guide covering voltage, current and power amplification, gain, feedback, amplifier classes, audio and RF applications, op-amp circuits, transimpedance amplifiers, datasheet selection and trou…
