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Infineon Technologies IR3094MTRPBF
- Part No.:
- IR3094MTRPBF
- Manufacturer:
- Infineon Technologies
- Category:
- DC DC Switching Controllers
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
IR3094MTRPBF.pdf
- Description:
- IC REG CTRLR BUCK 48MLPQ
- Quantity:
- Payment:
- Shipping:
Inventory:3,338
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Product details
Overview
IR3094MTRPBF from Infineon Technologies is a 3-phase PWM controller IC for point-of-load (POL) DC-DC converters, integrating gate drivers, voltage positioning, hiccup over-current protection, and DCR-based current sensing. It delivers 0.85V reference accuracy, 100–540kHz programmable switching frequency, and supports up to 5.1V output with 150mA bias regulator. Used in high-current server VRMs and telecom POL modules.
For engineers reviewing the IR3094MTRPBF datasheet, IR3094MTRPBF pinout, IR3094MTRPBF application, or IR3094MTRPBF equivalent, key selection criteria include 3-phase interleaved timing control, VOSNS- remote sense capability, GATELX pull-down drive strength (3A peak), and OVP flag latching behavior with dedicated OVPSNS input.
Technical Context
The IR3094 implements a three-phase interleaved PWM architecture with phase-shifted gate drive outputs (GATEH1–GATEH3, GATEL1–GATEL3) and synchronized current sharing via SCOMP2/SCOMP3 compensation networks. Each phase uses independent current-sense amplifiers (CSINPX/CSINMX) referenced to VREF and supports DCR sensing.
It features dual UVLO thresholds (7.5V for VCC, 4.36V for gate driver supply), programmable soft-start via SS/DEL capacitor, and latched OVP detection triggered by OVPSNS exceeding VREF + 150mV. The EAOUT error amplifier drives all three PWM comparators with internal ramp modulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reference Voltage | 0.85V ±1.5% - precise setpoint for output regulation and current-sense thresholding |
| Oscillator Frequency | 100–540kHz programmable via ROSC resistor - enables optimization of efficiency vs. size in high-current POL designs |
| GATELX Pull-Down Drive | 3A peak (100ns) - ensures fast low-side MOSFET turn-off under heavy load transients |
| BIASOUT Regulator | 150mA adjustable output - supplies gate drive bias for external high-side FETs without auxiliary LDO |
| Over-Current Protection | Hiccup mode with programmable delay - prevents false triggering during inrush while protecting against sustained faults |
| Voltage Positioning | Programmable droop slope - maintains stable bus voltage under dynamic load steps in multi-phase VRMs |
| UVLO Thresholds | VCC: 7.5V start / 7.0V stop; 5VUVL: 4.36V start - ensures safe power sequencing across input and gate driver rails |
Pinout & Package
IR3094MTRPBF is housed in a thermally enhanced 48-lead MLPQ package (7 mm × 7 mm body, JA = 27°C/W), optimized for high-power density POL applications with exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| ROSC | Oscillator programming input | Resistor-to-VOSNS- sets switching frequency, OCSET bias, and SETBIAS current |
| VOSNS- | Remote sense return | Connects to load ground to enable accurate remote voltage regulation and current sensing |
| GATEH1–GATEH3 | High-side gate drivers | 30V-rated outputs with 25–50ns rise/fall times; support bootstrap or isolated gate drive |
| GATEL1–GATEL3 | Low-side gate drivers | 20V-rated outputs with 3A pulsed sink capability; integrated non-overlap logic prevents shoot-through |
| CSINP1–CSINP3 / CSINM1–CSINM3 | Phase current sense inputs | Differential inputs for DCR-based current sensing per phase; support up to 5.1V output |
| OVPSNS | Dedicated OVP sense input | Independent feedback path for latched over-voltage protection; decoupled from main FB loop |
| PWRGD | Open-collector power-good flag | Drives low during soft-start or fault; requires external pull-up for system enable signaling |
| ENABLE | Logic-level enable input | Active-high input referenced to VOSNS-; <1.3V disables IC and forces fault state |
Key Features
| Feature | Design Value |
|---|---|
| Three-phase interleaved PWM control | 120° phase shift between GATEH1/GATEH2/GATEH3 reduces input/output ripple and improves transient response |
| DCR-based current sensing | Eliminates current-sense resistors; supports high-efficiency, low-heat designs up to 5.1V output |
| Programmable voltage positioning | Adjustable droop gain enables precise bus voltage control under varying load conditions in VRM applications |
| Latched OVP with dedicated sense pin | OVPSNS input provides independent, noise-immune over-voltage detection without affecting regulation loop stability |
| Integrated 150mA bias regulator | BIASOUT eliminates need for external gate-drive LDO; SETBIAS resistor programs output voltage |
Applications
| Server VRM | Telecom POL Module |
|---|---|
|
Use Scenario: High-current CPU core voltage regulation in dual-socket servers requiring >100A output with tight transient response. IC Role / Device Role / Timing Role: Primary 3-phase PWM controller managing gate timing, current sharing, and adaptive voltage positioning. Use Value: Interleaved phase control reduces input capacitance requirements by 60% versus single-phase solutions while maintaining <±1% output accuracy. |
Use Scenario: Point-of-load conversion in 48V telecom rectifier systems powering baseband processing units. IC Role / Device Role / Timing Role: Central POL controller coordinating three synchronous buck stages with shared current-loop compensation. Use Value: DCR sensing eliminates power loss from shunt resistors, improving full-load efficiency by 1.2% at 12Vout/30A. |
| GPU Power Delivery | Industrial FPGA Core Supply |
|
Use Scenario: Dynamic voltage scaling for AI accelerator GPUs with rapid load steps exceeding 50A/µs. IC Role / Device Role / Timing Role: Fast-response PWM controller using EAOUT-driven comparator and programmable soft-start to manage slew rate. Use Value: 150mA BIASOUT powers high-gate-charge GaN FETs directly, enabling <200ns turn-on without external boost circuitry. |
Use Scenario: Reliable core voltage supply for Xilinx Versal or Intel Agilex FPGAs in harsh industrial environments. IC Role / Device Role / Timing Role: Fault-tolerant POL controller with latched OVP, hiccup over-current, and dual UVLO monitoring. Use Value: Dedicated OVPSNS and 5VUVL pins provide independent rail monitoring, eliminating single-point failure modes in safety-critical systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 3-phase POL controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL6322IRZ | Fixed 600kHz oscillator; no programmable voltage positioning; uses resistor-based current sensing | Lacks DCR sensing and VPRO adjustment; suited for cost-sensitive, fixed-frequency designs | Choose when design prioritizes simplicity over adaptive droop control and thermal efficiency |
| TPS53679RTAT | Supports 4-phase operation; includes PMBus interface; higher integration (integrated MOSFET drivers) | Requires digital communication infrastructure; targets advanced server platforms with telemetry needs | Choose when system-level telemetry, phase expansion, or tighter digital control loops are required |
Compared with ISL6322IRZ and TPS53679RTAT, the IR3094MTRPBF offers unique analog-programmable voltage positioning and DCR-only current sensing-enabling lower BOM count and higher efficiency in analog-controlled, high-current POL systems where digital interfaces are unnecessary.
Availability
IR3094MTRPBF is available at Aetrix Electronics and suitable for server VRMs, telecom POL modules, GPU power delivery, and industrial FPGA core supplies requiring stable component supply and long-term production continuity.
Supply support for IR3094MTRPBF 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 global semiconductor leader specializing in power management, automotive, and industrial control ICs, with deep expertise in high-efficiency power conversion.
The IR3094 belongs to Infineon's Point-of-Load Controller product line, designed specifically for high-current, multi-phase DC-DC converters in datacenter, telecom, and computing infrastructure where thermal density and transient response are critical.
FAQ
What is the function of the VOSNS- pin?
VOSNS- serves as the remote sense return connection to the load ground, enabling accurate output voltage regulation and DCR-based current sensing. It establishes the reference point for the error amplifier and over-current comparator, ensuring regulation remains stable despite PCB trace resistance between the controller and load.
How does the hiccup over-current protection work?
Hiccup OCP disables all gate drivers upon current fault detection, waits a programmable delay (set by SS/DEL capacitor), then attempts soft restart. If fault persists, it repeats the cycle. This prevents thermal runaway during sustained short circuits while allowing recovery from transient overloads without full shutdown.
Can IR3094MTRPBF drive GaN FETs directly?
Yes-the GATEHx outputs support 30V max, and GATELx outputs support 20V max with 3A pulsed sink capability and <50ns transition times, meeting typical GaN gate drive requirements. BIASOUT's 150mA output can supply gate bias for cascode GaN devices when configured with appropriate SETBIAS resistor.
Is the 48L MLPQ package RoHS-compliant and lead-free?
Yes-IR3094MTRPBF carries the "PBF" suffix, indicating lead-free and RoHS-compliant construction. The 48L MLPQ package uses matte tin plating and meets JEDEC J-STD-020 moisture sensitivity level 3 (MSL3) for standard SMT assembly processes.
IR3094MTRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 48-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Type:
- Transistor Driver
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Number of Outputs:
- 3
- Output Phases:
- 3
- Voltage - Supply (Vcc/Vdd):
- 8V ~ 16V
- Frequency - Switching:
- 200kHz
- Duty Cycle (Max):
- 100%
- Synchronous Rectifier:
- Yes
- Clock Sync:
- No
- Serial Interfaces:
- -
- Control Features:
- Enable, Frequency Control, Power Good, Soft Start
- Operating Temperature:
- 0°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-MLPQ (7x7)
IR3094MTRPBF FAQ
1.How can I place an order for IR3094MTRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for IR3094MTRPBF 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 IR3094MTRPBF reliable?
The price and inventory of IR3094MTRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IR3094MTRPBF is usually 5 days.
3.What payment methods are accepted for IR3094MTRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IR3094MTRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IR3094MTRPBF?
IR3094MTRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IR3094MTRPBF 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 IR3094MTRPBF?
For technical support, including IR3094MTRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IR3094MTRPBF requirements.
6.How does Aetrix verify that IR3094MTRPBF is sourced from the original manufacturer or authorized distributors?
All IR3094MTRPBF 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 IR3094MTRPBF meets industry standards.
7.What is the process for return or replacement of IR3094MTRPBF?
All IR3094MTRPBF units undergo pre-shipment inspection (PSI). If there is an issue with IR3094MTRPBF, 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 IR3094MTRPBF part is unused and in its original packaging.
Return procedure for IR3094MTRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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