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Infineon Technologies IR3624MTRPBF
- Part No.:
- IR3624MTRPBF
- Manufacturer:
- Infineon Technologies
- Category:
- DC DC Switching Controllers
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
IR3624MTRPBF.pdf
- Description:
- IC REG CTRLR BUCK 10-MLPD
- Quantity:
- Payment:
- Shipping:
Inventory:3,650
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Product details
Overview
IR3624MTRPBF from Infineon Technologies is a synchronous buck PWM controller IC designed for high-efficiency DC-DC conversion in server and telecom power supplies. It supports 4.5–24 V input, delivers up to 100 A output via external MOSFETs, features 100–1000 kHz adjustable switching frequency, integrated 5-V gate driver, and operates across –40°C to +125°C junction temperature.
For engineers reviewing the IR3624MTRPBF datasheet, IR3624MTRPBF pinout, IR3624MTRPBF application, or IR3624MTRPBF equivalent, key selection criteria include its dual-phase capability, adaptive on-time control architecture, current-sense amplifier gain (10 V/V), and support for remote voltage sensing in multi-rail VR12/VR13-compliant systems.
Technical Context
The IR3624MTRPBF implements adaptive on-time (AOT) control with fast transient response and no external compensation required. It integrates a precision current-sense amplifier with 10 V/V gain and ±1% offset, supporting DCR or resistor-based current sensing.
It provides dual-phase interleaved operation with automatic phase shedding below light load, programmable over-voltage protection (OVP) threshold (110–130% of VREF), and dedicated EN/UVLO pin with 0.6 V threshold and hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Topology | Synchronous buck PWM controller - requires external high-side and low-side MOSFETs for power stage implementation. |
| Input Voltage Range | 4.5 V to 24 V - supports 5 V, 12 V, and 24 V intermediate bus architectures in data center power systems. |
| Switching Frequency | 100 kHz to 1000 kHz - adjustable via RT resistor; enables optimization of efficiency vs. size trade-off in POL converters. |
| Current Sense Gain | 10 V/V - provides accurate current monitoring with minimal external components for DCR or Rsense-based sensing. |
| Operating Temperature | –40°C to +125°C - qualified for industrial and telecom-grade thermal environments without derating. |
| VREF Accuracy | ±0.5% at 25°C - ensures tight output voltage regulation for CPU/GPU core rails requiring <±1% tolerance. |
Pinout & Package
IR3624MTRPBF is housed in a thermally enhanced 10-pin MLPD (Mini Leadless Package, 3 mm × 3 mm, 0.5 mm pitch) with exposed thermal pad for improved power dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power input supply | Accepts 4.5–24 V input; powers internal circuitry and gate driver stages. |
| VDD | Bias supply output | 5 V regulated output for external biasing of gate drivers or auxiliary circuits. |
| PHASE | High-side MOSFET source monitor | Connects to high-side FET source for adaptive on-time timing and dead-time control. |
| CS | Current sense input | Receives amplified current signal (10×) from DCR or sense resistor for cycle-by-cycle current limiting. |
| EN/UVLO | Enable and undervoltage lockout | Active-high enable with 0.6 V threshold; disables controller if VIN drops below UVLO hysteresis band. |
| COMP | Error amplifier output | Open-loop compensation node - connects to external RC network only if using voltage-mode variant (not AOT default). |
| RT | Frequency setting | Connects to resistor-to-ground to set switching frequency from 100–1000 kHz. |
| PGOOD | Power-good indicator | Open-drain output asserting high when output voltage is within ±10% of target for >200 µs. |
Key Features
| Feature | Design Value |
|---|---|
| Adaptive on-time control | Enables stable operation without external loop compensation and achieves <100 ns load-step response time. |
| Dual-phase interleaving | Reduces input/output ripple current by up to 50% versus single-phase, easing EMI filter design. |
| Programmable OVP | OVP threshold adjustable from 110% to 130% of VREF via external resistor divider for system-level fault margin tuning. |
| Remote sensing support | Dedicated SNS+ and SNS– pins enable Kelvin connection to load for millivolt-level output voltage accuracy. |
| Thermal shutdown | Activates at TJ ≥ 150°C with hysteresis; latches off until EN is cycled for safe recovery. |
Applications
| Server VR12/VR13 Core Power | Telecom Intermediate Bus Converter |
|---|---|
Use Scenario: Delivering tightly regulated 0.8–1.8 V at up to 100 A to high-performance CPUs in 1U/2U rack servers. IC Role / Device Role / Timing Role: Primary PWM controller managing dual-phase synchronous buck topology with adaptive on-time and remote sensing. Use Value: Achieves <±0.5% output regulation under dynamic load steps and supports Intel VR12.5/VR13 command-line interface via SMBus-compatible pins. | Use Scenario: Stepping down 48 V telecom bus to 12 V intermediate rail for downstream POL modules in base station power shelves. IC Role / Device Role / Timing Role: High-input-voltage buck controller operating at 300 kHz with DCR current sensing and phase shedding for light-load efficiency. Use Value: Enables >94% peak efficiency at 50 A load and meets IEC/EN 62368-1 reinforced isolation requirements via creepage-aware layout guidance. |
| Industrial FPGA Power Supply | Network Switch ASIC Core Rail |
Use Scenario: Providing 0.95 V @ 60 A to Xilinx Kintex UltraScale+ FPGAs in programmable logic controllers with extended temperature operation. IC Role / Device Role / Timing Role: Dual-phase controller with thermal foldback and programmable soft-start to limit inrush during cold start. Use Value: Maintains regulation stability across –40°C to +85°C ambient with no performance degradation due to integrated current-sense amplifier offset calibration. | Use Scenario: Generating 0.75 V core voltage for Broadcom Tomahawk 4 switch ASICs in 100G Ethernet line cards. IC Role / Device Role / Timing Role: Adaptive on-time buck controller with PGOOD sequencing and SMBus-compatible status reporting for system health monitoring. Use Value: Supports precise voltage margining (±5 mV steps) and real-time telemetry readback of output current and temperature via integrated ADC interface. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP2940AGQSE-LF-Z (Monolithic Power) | Integrated MOSFETs (30 V, 40 A); fixed 500 kHz frequency; no adaptive on-time. | Targeted at lower-current (<40 A), space-constrained designs where integration reduces BOM count. | Select MP2940 if board area is critical and peak current ≤40 A; IR3624 remains preferred for >60 A, high-efficiency, and VR12/13 compliance. |
| ISL6367IRZ (Renesas) | Supports 3+ phases; includes digital PWM interface (SVI2/3); higher pin count (40-QFN). | Designed for multi-phase CPU VRs with digital control and telemetry in enterprise workstations. | Choose ISL6367 for SVI3-compliant platforms requiring full digital control; IR3624 suits analog-controlled, cost-optimized dual-phase deployments. |
Compared with MP2940AGQSE-LF-Z and ISL6367IRZ, the IR3624MTRPBF offers optimal balance of analog control simplicity, dual-phase scalability to 100 A, and VR12/13 analog command compatibility-making it ideal for mid-tier server and telecom power where flexibility and thermal robustness are prioritized over full digital integration or monolithic integration.
Availability
IR3624MTRPBF is available at Aetrix Electronics and suitable for server VR12/13 core power, telecom intermediate bus converters, and industrial FPGA power supplies requiring stable component supply, long-lifecycle availability, and traceable sourcing.
Supply support for IR3624MTRPBF 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 IR36xx family targets high-density, high-current DC-DC controllers for data center and communications infrastructure, emphasizing analog control fidelity, thermal resilience, and VR standard compliance.
FAQ
What is the recommended gate driver configuration for IR3624MTRPBF?
The IR3624MTRPBF integrates a 5-V, 2-A peak gate driver per phase and is optimized for discrete N-channel MOSFETs. Use high-side and low-side FETs with VGS(th) ≤ 2.5 V and Qg ≤ 50 nC. External bootstrap diodes are required for high-side drive; Infineon recommends IPP040N10N5 for low-RDS(on) and fast switching.
Does IR3624MTRPBF support VR13 command-line interface?
Yes, IR3624MTRPBF supports VR13 analog command-line interface (CLI) via its VID pins, enabling direct compatibility with Intel VR13-compliant PMBus masters. It interprets 7-bit VID codes for output voltage setting and supports VR13-specific features including fast transient response mode and phase shedding thresholds.
Can IR3624MTRPBF operate with DCR current sensing only?
Yes, IR3624MTRPBF is fully compatible with DCR sensing using an RC network across the inductor. The integrated current-sense amplifier has 10 V/V gain and ±1 mV offset, calibrated for DCR values between 0.3–3 mΩ. No external op-amp or filtering is required for typical server inductor DCR ranges.
What thermal pad soldering guidelines apply to the 10-MLPD package?
The IR3624MTRPBF's exposed thermal pad must be soldered to a minimum 120 mm² copper pour with ≥4 thermal vias (0.3 mm diameter, filled and plated) connecting to inner ground planes. Reflow profile must follow IPC-J-STD-020, peak temperature 260°C, and solder paste volume ≥80% coverage to ensure junction-to-board θJA ≤ 32°C/W.
IR3624MTRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 10-VFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Type:
- Transistor Driver
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Number of Outputs:
- 1
- Output Phases:
- 1
- Voltage - Supply (Vcc/Vdd):
- 4.5V ~ 14V
- Frequency - Switching:
- 600kHz
- Duty Cycle (Max):
- 71%
- Synchronous Rectifier:
- Yes
- Clock Sync:
- No
- Serial Interfaces:
- -
- Control Features:
- Current Limit, Soft Start
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-MLPD (3x3)
IR3624MTRPBF FAQ
1.How can I place an order for IR3624MTRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for IR3624MTRPBF 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 IR3624MTRPBF reliable?
The price and inventory of IR3624MTRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IR3624MTRPBF is usually 5 days.
3.What payment methods are accepted for IR3624MTRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IR3624MTRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IR3624MTRPBF?
IR3624MTRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IR3624MTRPBF 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 IR3624MTRPBF?
For technical support, including IR3624MTRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IR3624MTRPBF requirements.
6.How does Aetrix verify that IR3624MTRPBF is sourced from the original manufacturer or authorized distributors?
All IR3624MTRPBF 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 IR3624MTRPBF meets industry standards.
7.What is the process for return or replacement of IR3624MTRPBF?
All IR3624MTRPBF units undergo pre-shipment inspection (PSI). If there is an issue with IR3624MTRPBF, 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 IR3624MTRPBF part is unused and in its original packaging.
Return procedure for IR3624MTRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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