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Product Detailed Parameters
- Description：IC LED DRIVER CTRLR PWM 8SOIC
- Series：-
- Mfr：Infineon Technologies
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：DC DC Controller
- Topology：Step-Down (Buck)
- Internal Switch(s)：No
- Number of Outputs：1
- Voltage - Supply (Min)：9V
- Voltage - Supply (Max)：15.6V
- Voltage - Output：-
- Current - Output / Channel：-
- Frequency：500kHz
- Dimming：PWM
- Applications：-
- Operating Temperature：-25°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Grade：-
- Qualification：-
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Overview
The IRS2541STRPBF is an obsolete DC-DC controller IC designed for step-down (buck) switching power supply applications, specifically optimized for LED drivers. It supports PWM dimming and operates with a fixed switching frequency of 500kHz. The device functions as a single-output controller without internal switches, requiring external MOSFETs. It is housed in an 8-SOIC package with a width of 3.90mm. The component supports a supply voltage range from 8V to 16.6V and operates within a junction temperature range of -25°C to 125°C.
Feature Summary
- Integrated DC-DC controller topology for buck converter applications
- Supports pulse-width modulation (PWM) dimming control
- Fixed high-frequency switching operation at 500kHz
- External switch configuration for flexible power stage design
Applications
- LED lighting driver circuits
- Step-down DC-DC power conversion systems
- General-purpose buck converter designs
Procurement Notes
This specific part number is officially discontinued and no longer manufactured by Infineon Technologies. Verification of availability should focus on the designated replacement model, IRS25411STRPBF, which serves as the direct successor. Ensure that any sourced units are confirmed as genuine replacements rather than obsolete stock of the original part. Cross-reference datasheets to confirm pin compatibility before integration into new designs.
Selection Notes
Select the IRS25411STRPBF as the primary alternative due to its identical functional role and pinout compatibility. The replacement maintains the same buck topology and 500kHz switching frequency. Verify that the updated supply voltage specifications align with the target application requirements. This transition ensures continued support and availability while preserving the original circuit architecture's performance characteristics.
Part Context
The IRS2541 series represents Infineon's portfolio of integrated gate drivers and controllers for high-voltage applications. The IRS2541STRPBF belongs to this family, focusing on efficient power management for lighting and general DC-DC conversion. As an obsolete component, it has been superseded by newer iterations like the IRS25411, reflecting ongoing improvements in manufacturing and feature sets within the company's product line.
Replacement Considerations
The IRS25411STRPBF is the confirmed public substitute for the IRS2541STRPBF. Both components share the same 8-SOIC package and core buck controller functionality. Engineers should verify electrical parameter tolerances between the two versions to ensure seamless integration without circuit modification.
