Looking for Reliable Replacements for Infineon BCR401? Discover Slkor SL401 & Other Top LDO Voltage Regulator Alternatives!

 Slkor presents the SL401 — a reliable, pin-to-pin alternative to Infineon’s BCR401. This high-performance 42V, 10mA low dropout (LDO) voltage regulator delivers stable operation with minimal power loss, making it ideal for space-constrained and energy-efficient applications.

Key Specifications:

  • Input Voltage (VDD): Up to 42V
  • Output Current (IO): 65mA
  • Quiescent Current (IDDQ): 160μA
  • Operating Temperature Range (TA): Up to 150°C
  • Package: Compact SOT-23–6


Description
 The SL401 is a versatile constant current driver IC, featuring a default output of 10mA. By connecting an external bias resistor, the output current can be adjusted up to 65mA, making it ideal for driving low-power LEDs. Additionally, by connecting a transistor to the output pin, the SL401’s feedback control can enable dimming control for high-power LEDs exceeding 65mA. (For application details, refer to Figures 6–1 and 6–2.)

Key Features

  • Precise, bias-resistor programmable output current, independent of the number of LEDs in series or their forward voltage changes.
  • Stable output current, unaffected by fluctuations in supply voltage — perfect for long power line applications without performance loss.
  • Compact and efficient solution for constant current LED driving and control.

Typical Applications

  • Switching Mode Power Supplies (SMPS)
  • DC-DC Converters
  • Motor Control Systems
  • Solar Power Solutions
  • LED Lighting and Dimming Control

MOSFET Replacements:

SLKOR MOSFET IRF640 is equivalent to Infineon IRF640NPBF
SLKOR MOSFET IRFR5305 is equivalent to Infineon IRFR5305TRPBF

LDO Regulator Replacements:

SLKOR LDO SL4275 is equivalent to Infineon TLE4275
SLKOR LDO SL4284 is equivalent to Infineon TLE4284
SLKOR LDO SL4949 is equivalent to Infineon TLF4949
SLKOR LDO SL4275-G is equivalent to Infineon TLE42754G
SLKOR LDO SL4264–2 is equivalent to Infineon TLE4264
SLKOR LDO SL42744D is equivalent to Infineon TLE42744
SLKOR LDO SL42764 is equivalent to Infineon TLE42764

Gate Driver IC Replacements:

SLKOR Gate Driver IC SL401 is equivalent to Infineon BCR401
SLKOR Gate Driver IC SL21814 is equivalent to Infineon IR21814/IRS21814
SLKOR Gate Driver IC SL2110 is equivalent to Infineon IR2110S
SLKOR Gate Driver IC SL2003 is equivalent to Infineon IRS2003S
SLKOR Gate Driver IC SL2004 is equivalent to Infineon IRS2004
SLKOR Gate Driver IC SL2103 is equivalent to Infineon IR2103S

Smart Power Switch Replacements:

SLKOR Smart Power Switch SL3405S is equivalent to Infineon BTS3405G

Zener Diode Replacements:

SLKOR Zener Diode SL4264–2 is equivalent to Infineon TLE4264

DC-DC Regulator Replacements:

SLKOR DC-DC Regulator SL8366 is equivalent to Infineon TLE8366

For more alternatives please reach out : sales03@slkormicro.com

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