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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Voltage Regulators - DC DC Switching Regulators

Infineon Technologies IP2005CPBF

Name: IP2005CPBF
Brand: Infineon Technologies
SKU: IP2005CPBF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IP2005CPBF

Manufacturer:: Infineon Technologies

Category:: Voltage Regulators - DC DC Switching Regulators

Package:: 8-LLGA

Datasheet:: IP2005CPBF.pdf

Description:: IC REG BUCK ADJ 40A 8LGA

Quantity:: RFQ Add To RFQ list

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Product details

Overview

iP2005CPBF from International Rectifier is a synchronous buck multiphase power block integrating high-side and low-side MOSFETs, gate drivers, and bootstrap circuitry in a single LGA package. It delivers up to 40A continuous output current, operates at switching frequencies up to 1.5MHz, and supports input voltages from 2.5V to 13.2V with bias supply range 4.5–7.0V. It is engineered for microprocessor core voltage regulation in multi-phase DC-DC converters.

For engineers reviewing the iP2005CPBF datasheet, iP2005CPBF pinout, iP2005CPBF application, or iP2005CPBF equivalent, key selection criteria include verified 40A thermal capability at T_PCB = 95°C, bi-directional current flow support, under-voltage lockout (UVLO) thresholds (VDD rising: 4.15V typ), and LGA-10 interface compatibility with standard PCB reflow profiles.

Technical Context

The iP2005CPBF implements a fully integrated synchronous buck stage with internal high-side and low-side N-channel MOSFETs, optimized for phase interleaving in multi-phase VRMs. Its gate driver supports fast switching (t_PDH = 40ns typ, t_TPDL = 75ns typ) and features weak pull-down impedance (100kΩ typ) on ENABLE and PWM inputs.

It incorporates a dedicated VDD bias rail with POR (4.15V rising threshold), UVLO hysteresis (200mV), and operates across -40°C to +125°C block temperature. The device enables high-frequency operation (up to 1.5MHz) while maintaining <85% max duty cycle and 50ns minimum on-time - critical for low-V_OUT, high-I_OUT CPU/GPU power delivery.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Current	40A continuous - validated at T_PCB = 95°C without derating
Switching Frequency	250–1500 kHz - supports high-frequency, low-profile converter designs
Input Voltage Range	2.5–13.2V - compatible with 3.3V, 5V, and 12V intermediate bus architectures
Bias Supply (VDD)	4.5–7.0V - powers internal gate driver and logic; includes POR/UVLO
Power Loss	7.8W typ @ VIN=12V, VOUT=1.3V, IOUT=40A, FSW=1MHz - enables compact thermal design
Duty Cycle Limit	≤85% - ensures safe operation under low-V_OUT/high-V_IN conditions
Minimum On-Time	50 ns - supports sub-1V outputs at high switching frequencies

Pinout & Package

Package: LGA-10 (7.65mm × 7.65mm × 1.66mm), leadless land grid array with exposed thermal pad. Designed for bottom-side thermal transfer via PCB copper pour and solder stencil-defined paste volume.

Pin/Terminal	Circuit Role	Design Meaning
VIN	High-side MOSFET drain / input power rail	Primary power input node; connects to bulk capacitor and upstream bus
VSW	Switch node / phase output	Connects to output inductor; carries high di/dt AC current and must be minimized in loop area
PGND	Power ground reference	Low-impedance return path for high-current switching; tied to thermal pad
PWM	Gate drive control input	Accepts TTL/CMOS-compatible PWM signal; 2.0V min VIH, 0.8V max VIL
ENABLE	Global enable/disable control	Active-high logic input; includes 100mV hysteresis and 100kΩ internal pull-down
VDD	Bias supply input	Powers internal driver and logic; regulated 4.5–7.0V required; POR triggers at 4.15V

Key Features

Feature	Design Value
No derating up to T_PCB = 95°C	Enables full 40A rating in thermally constrained server/desktop PCB layouts without forced air
Bi-directional current flow	Supports DCM and CCM operation; essential for transient response in CPU load-step events
Optimized for low power loss	7.8W typical loss at 40A/1.3V/1MHz enables >90% efficiency in 12V-input VRMs
LGA interface	Eliminates wirebond reliability concerns; supports automated optical inspection and X-ray void detection
Under-voltage lockout (UVLO)	Prevents erratic switching during brown-out; 200mV hysteresis ensures stable turn-on/turn-off

Applications

Microprocessor Core VRM

GPU Power Delivery

Use Scenario: High-current, low-voltage regulation for Intel/AMD CPU cores requiring rapid load-step response and tight voltage tolerance.

IC Role / Device Role / Timing Role: Single-phase building block in 4+1 or 6+1 multiphase VRM; provides synchronous rectification and gate drive.

Use Value: Delivers 40A per phase with <50ns minimum on-time, enabling sub-1V outputs at 1MHz+ switching for improved transient performance.

Use Scenario: Compact, high-density power stage for discrete GPU VRMs where board height and thermal density are critical constraints.

IC Role / Device Role / Timing Role: Integrated buck phase module replacing discrete MOSFET + driver combos; reduces BOM count and layout complexity.

Use Value: 7.65mm × 7.65mm footprint and 1.66mm height allow placement beneath GPU heatsinks; LGA thermal pad improves θ_JA by ~30% vs. QFN.

High-Frequency Server PSU

AI Accelerator Board Power

Use Scenario: Intermediate bus converter (IBC) output stage in 48V-to-12V or 12V-to-1.3V cascaded architectures for cloud servers.

IC Role / Device Role / Timing Role: Secondary-side multiphase buck stage operating at 1MHz; interfaces with digital PWM controller via PWM/ENABLE signals.

Use Value: Supports 1.5MHz max switching frequency and bi-directional current, enabling smaller magnetics and faster transient recovery in dynamic workloads.

Use Scenario: Dedicated core voltage regulator for FPGA or ASIC-based AI accelerators with burst-mode current demands exceeding 30A.

IC Role / Device Role / Timing Role: High-current power block in 3-phase or 4-phase configuration; synchronized via external clock or phase-shifted PWM.

Use Value: Validated 40A rating at 125°C block temperature ensures reliability under sustained AI inference loads with minimal derating.

Equivalent & Alternatives

The following parts are listed as comparable options for similar synchronous buck power block applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
DrMOS IR35201	Integrated current sense, digital interface (SVID), higher integration of PMBus telemetry	Requires SVID-compliant controller; adds telemetry but increases system complexity	Select when digital monitoring, adaptive voltage positioning, or dynamic VID updates are required
ON Semiconductor NCP3232	Lower max current (35A), wider V_IN range (2.7–24V), no bi-directional current support	Suitable for broader industrial input rails but lacks bidirectional capability for advanced CCM/DCM transitions	Select when higher input voltage margin is needed and 40A rating is not mandatory

Compared with IR35201 and NCP3232, the iP2005CPBF offers the highest verified continuous current (40A at 95°C PCB temp) with bi-directional operation and minimal external component count - making it optimal for space-constrained, high-efficiency CPU/GPU VRMs where analog PWM control is preferred.

Availability

iP2005CPBF is available at Aetrix Electronics and suitable for microprocessor VRMs, GPU power delivery systems, and high-frequency server DC-DC converters requiring stable component supply, long-lifecycle availability, and consistent thermal performance across production batches.

Supply support for iP2005CPBF 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

International Rectifier (now part of Infineon Technologies) was a pioneer in power MOSFETs and integrated power stages, specializing in high-efficiency, high-current semiconductor solutions for computing and industrial power conversion.

The iP2005C product line targets high-density, multi-phase synchronous buck regulators for CPU, GPU, and ASIC core voltage applications - emphasizing thermal robustness, low-loss integration, and simplified layout over digital telemetry.

FAQ

What is the maximum allowable PCB temperature for full 40A operation?

The iP2005CPBF is rated for full 40A continuous output current without derating up to a PCB temperature (T_PCB) of 95°C, as confirmed in the Absolute Maximum Ratings and SOA curve documentation. Operation above this temperature requires current derating per Figure 2, with continuous current dropping to ~31A at T_PCB = 100°C and T_CASE = 110°C.

Does iP2005CPBF support both continuous and discontinuous conduction modes?

Yes - its bi-directional current flow capability and gate driver architecture support both CCM and DCM operation. This is essential for maintaining regulation during light-load conditions and enabling fast transient response during CPU load steps, as validated in application note AN1047 and SOA characterization.

Can iP2005CPBF be used with a 3.3V bias supply?

No - the specified VDD bias supply range is strictly 4.5V to 7.0V. A 3.3V supply falls below the minimum 4.5V requirement and will prevent proper gate driver operation and trigger UVLO shutdown. A dedicated 5V or 6V bias rail is required, typically derived from an auxiliary winding or LDO.

Is thermal pad soldering required for reliable operation?

Yes - the exposed thermal pad on the underside of the LGA package must be soldered to a solid copper pour on the PCB for effective heat dissipation. The datasheet specifies that thermal performance and 40A rating assume proper thermal pad connection with recommended stencil aperture and solder paste volume per PD-60360 layout guidelines.

IP2005CPBF Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: iPOWIR™

Package/Case:: 8-LLGA

Packaging:: Tube

Product Status:: Obsolete

Function:: Step-Down

Output Configuration:: Positive

Topology:: Buck

Output Type:: Adjustable

Number of Outputs:: 1

Voltage - Input (Min):: 2.5V

Voltage - Input (Max):: 13.2V

Voltage - Output (Min/Fixed):: 0.8V

Voltage - Output (Max):: 5.5V

Current - Output:: 40A

Frequency - Switching:: 250kHz ~ 1.5MHz

Synchronous Rectifier:: Yes

Operating Temperature:: -40°C ~ 125°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-LGA

IP2005CPBF FAQ

1.How can I place an order for IP2005CPBF through Aetrix?

Please submit a Request for Quotation (RFQ) for IP2005CPBF 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 IP2005CPBF reliable?

The price and inventory of IP2005CPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IP2005CPBF is usually 5 days.

3.What payment methods are accepted for IP2005CPBF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IP2005CPBF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IP2005CPBF?

IP2005CPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IP2005CPBF 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 IP2005CPBF?

For technical support, including IP2005CPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IP2005CPBF requirements.

6.How does Aetrix verify that IP2005CPBF is sourced from the original manufacturer or authorized distributors?

All IP2005CPBF 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 IP2005CPBF meets industry standards.

7.What is the process for return or replacement of IP2005CPBF?

All IP2005CPBF units undergo pre-shipment inspection (PSI). If there is an issue with IP2005CPBF, 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 IP2005CPBF part is unused and in its original packaging.

Return procedure for IP2005CPBF:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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