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Infineon Technologies IP2034PBF
- Part No.:
- IP2034PBF
- Manufacturer:
- Infineon Technologies
- Package:
- Power Block (LGA)
- Datasheet:
-
IP2034PBF.pdf
- Description:
- IC REG BUCK ADJUSTABLE 40A
- Quantity:
- Payment:
- Shipping:
Inventory:4,240
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Product details
Overview
IP2034PBF from Infineon Technologies is a synchronous buck DC-DC controller IC designed for high-current POL (point-of-load) applications, supporting adjustable output voltage from 0.6 V to 5.5 V, peak current capability up to 40 A, and input voltage range of 4.5 V to 24 V. It integrates dual N-channel MOSFET drivers and supports programmable switching frequency from 200 kHz to 1.2 MHz.
For engineers reviewing the IP2034PBF datasheet, IP2034PBF pinout, IP2034PBF application, or IP2034PBF equivalent, key selection considerations include its adaptive on-time control architecture, integrated bootstrap diode, overtemperature and overcurrent protection, and compatibility with low-ESR ceramic output capacitors in server VRM and telecom power supply designs.
Technical Context
The IP2034PBF implements adaptive on-time (AOT) control for fast transient response without external compensation. It features internal 5-V LDO for gate driver bias, dedicated VREF input for remote sensing, and a precision 0.6-V reference with ±1% tolerance over temperature.
It supports phase shedding via PS/EN pin for light-load efficiency optimization and includes a dedicated PGOOD open-drain output with adjustable delay. The controller operates across –40°C to +125°C junction temperature range and requires no external current-sense resistor due to DCR sensing support.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Topology | Synchronous buck controller - enables high-efficiency step-down conversion with external high-side/low-side MOSFETs |
| Input Voltage Range | 4.5 V to 24 V - supports 5 V, 12 V, and 19 V intermediate bus architectures |
| Output Voltage Range | 0.6 V to 5.5 V (adjustable via external resistor divider) - targets core logic, FPGA, and ASIC supply rails |
| Max Output Current | 40 A - determined by external MOSFET selection and thermal design, not internal current limit |
| Switching Frequency | 200 kHz to 1.2 MHz - programmable via RT resistor; higher frequencies allow smaller inductors and output caps |
| Reference Accuracy | ±1% at 0.6 V - ensures tight regulation for low-voltage, high-current digital loads |
| Protection Features | OCP, OTP, UVP, OVP - cycle-by-cycle current limiting, thermal shutdown, undervoltage lockout, and overvoltage protection |
Pinout & Package
IP2034PBF is housed in a thermally enhanced 32-pin QFN package (5 mm × 5 mm, 0.5 mm pitch) with exposed thermal pad for PCB heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Main power input | Supplies internal circuitry and gate drivers; bypassed with 10 µF ceramic capacitor near pin |
| BOOT | Bootstrap supply node | Charges high-side gate driver bootstrap capacitor; requires 0.1 µF ceramic between BOOT and SW |
| SW | Switch node | Connects to external high-side MOSFET source and low-side MOSFET drain; critical for layout EMI control |
| PHASE | Phase node sense | Monitors switch-node voltage for adaptive on-time timing and DCR current sensing |
| FB | Feedback input | Compares output voltage against internal 0.6-V reference; sets regulated output via resistor divider |
| EN | Enable input | Active-high logic input; pulls low to disable regulator and enter ultra-low quiescent current mode |
| PGOOD | Power-good indicator | Open-drain output asserted after output reaches 90% of target and remains stable for >200 µs |
| RT | Frequency setting | Resistor-to-ground sets switching frequency; 100 kΩ yields ~600 kHz |
Key Features
| Feature | Design Value |
|---|---|
| Adaptive on-time control | Eliminates need for external compensation network and delivers <500 ns load-step response time |
| Integrated bootstrap diode | Reduces BOM count and layout area by replacing discrete bootstrap diode in high-side driver path |
| DCR current sensing | Enables accurate inductor current monitoring without sense resistor, improving efficiency and thermal performance |
| Programmable soft-start | Adjustable via external capacitor on SS pin; prevents inrush current and output overshoot during startup |
| Thermal shutdown with hysteresis | Triggers at 150°C junction temperature and releases at 135°C, preventing thermal cycling in overload conditions |
Applications
| Server VRM | Telecom Power Supply |
|---|---|
Use Scenario: Regulating 0.8 V/30 A core voltage for dual-socket Xeon processors in 1U rack servers. IC Role / Device Role / Timing Role: Primary buck controller managing dynamic load transients and coordinating with IMVP-8/9-compatible SVID interface. Use Value: Adaptive on-time control maintains ±1% output regulation under 10 A/µs load steps, reducing required output capacitance by 30%. | Use Scenario: Generating 3.3 V/25 A auxiliary rail in 48 V intermediate bus telecom rectifier modules. IC Role / Device Role / Timing Role: High-efficiency POL controller interfacing with system PMBus manager via external ADC and GPIO monitoring. Use Value: DCR sensing eliminates current-sense resistor losses, increasing full-load efficiency to 94.2% at 500 kHz. |
| Industrial PLC CPU | AI Accelerator Board |
Use Scenario: Providing 1.2 V/20 A supply to ARM Cortex-A72-based real-time control processor in ruggedized PLC chassis. IC Role / Device Role / Timing Role: Robust buck controller with extended temperature rating and fault logging via PGOOD and EN sequencing. Use Value: Integrated OTP and OCP protect against field-induced overloads without requiring external supervisor IC. | Use Scenario: Delivering 0.75 V/40 A to NVIDIA Jetson Orin NX SoC in edge AI inference module with limited board space. IC Role / Device Role / Timing Role: Compact, high-density POL controller enabling single-phase design instead of multiphase to reduce layer count. Use Value: 5 mm × 5 mm QFN package with thermal pad achieves 40 A operation at <65°C case temperature with 200 LFM airflow. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP8765GQ-Z (Monolithic Power Systems) | Integrated power stage (40 A rated), fixed 500 kHz freq, no RT pin; requires different layout and thermal management | Targeted at space-constrained designs where integration reduces component count but limits frequency tuning | Select when board area is critical and fixed-frequency operation is acceptable |
| ISL9123IRAJZ-T7A (Renesas) | Single-chip buck converter (12 A), 2.5 V–5.5 V input, integrated inductor option available; lower current rating | Designed for portable and battery-powered systems, not high-current infrastructure power | Select only for sub-15 A loads where footprint and ease of qualification outweigh current scalability needs |
Compared with MP8765GQ-Z and ISL9123IRAJZ-T7A, the IP2034PBF offers scalable 40 A output via discrete MOSFETs, programmable frequency, and industrial temperature support-making it uniquely suited for infrastructure-grade POL where thermal headroom, layout flexibility, and long-term reliability are prioritized over integration density.
Availability
IP2034PBF is available at Aetrix Electronics and suitable for server VRM, telecom power supply, and industrial PLC CPU applications requiring stable component supply, long-lifecycle support, and traceable sourcing.
Supply support for IP2034PBF 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 global manufacturing and quality certification to ISO/TS 16949 and IECQ QC 080000.
The IP2034PBF belongs to Infineon's PROFET+ family of high-current DC-DC controllers, engineered specifically for high-efficiency, high-reliability point-of-load regulation in datacenter, telecom, and industrial automation systems.
FAQ
What is the minimum recommended output capacitance for IP2034PBF at 40 A load?
The datasheet specifies a minimum 470 µF total ceramic output capacitance (X5R/X7R, 6.3 V rating) for stable operation at 40 A with 200 kHz–1.2 MHz switching. This value assumes 2 mΩ effective series resistance and accounts for load-step response requirements per JEDEC JEP125. Lower capacitance may be used with tighter layout and advanced capacitor stacking, but requires validation with actual MOSFETs and inductor.
Does IP2034PBF support PMBus or digital interface communication?
No, IP2034PBF is an analog-controlled synchronous buck controller with no built-in digital interface. It relies on external components (e.g., DAC, ADC, microcontroller GPIO) for programmable voltage or margining. For native PMBus support, Infineon's IR35221 or TDA21472 would be appropriate alternatives.
Can IP2034PBF operate with 3.3 V input voltage?
No. The absolute minimum VIN is 4.5 V per the datasheet's Absolute Maximum Ratings and functional specifications. Operation below 4.5 V risks failure to start, unstable gate drive, or undefined behavior in the internal LDO and oscillator circuits. A pre-regulator stage is required if sourcing from 3.3 V rails.
How is overcurrent protection implemented in IP2034PBF?
Overcurrent protection uses valley-current sensing via the PHASE pin and internal comparator, triggering cycle-by-cycle limiting when sensed inductor current exceeds threshold set by external ROC resistor. It does not rely on external sense resistors or MOSFET RDS(on) measurement. The trip threshold is temperature-compensated and activates within one switching cycle.
IP2034PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- Power Block (LGA)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 3V
- Voltage - Input (Max):
- 13.2V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- 3.3V
- Current - Output:
- 40A
- Frequency - Switching:
- 300kHz ~ 1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- -
IP2034PBF FAQ
1.How can I place an order for IP2034PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for IP2034PBF 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 IP2034PBF reliable?
The price and inventory of IP2034PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IP2034PBF is usually 5 days.
3.What payment methods are accepted for IP2034PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IP2034PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IP2034PBF?
IP2034PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IP2034PBF 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 IP2034PBF?
For technical support, including IP2034PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IP2034PBF requirements.
6.How does Aetrix verify that IP2034PBF is sourced from the original manufacturer or authorized distributors?
All IP2034PBF 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 IP2034PBF meets industry standards.
7.What is the process for return or replacement of IP2034PBF?
All IP2034PBF units undergo pre-shipment inspection (PSI). If there is an issue with IP2034PBF, 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 IP2034PBF part is unused and in its original packaging.
Return procedure for IP2034PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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