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TLF50281EL
  • TLF50281EL

TLF50281EL

Active and preferred

The TLF50281EL is an automotive-grade device with a wide input voltage range (4.75 V to 45 V) and operates at 2.2 MHz. It offers efficient power management with features like current limitation, over-temperature shutdown, adjustable threshold reset output, and a timeout watchdog. Its compact design reduces board space while ensuring excellent regulation.

Infineon Technologies TLF50281EL Product Info

16 April 2026 0

Parameters

Base Product

TLF502xx

Comments

Automotive Step-down integrated regulator , optimized for low quiescent operation, 5V/500mA, EN, RES, WD, 100%DC, f=2,2MHz, Iq<45µA

Family

OPTIREG™ Switcher

Inhibit

Yes

IQ max

500 mA

Iq

45 µA

Mounting

SMT

Operating Temperature range

-40 °C to 150 °C

Output Current Type

Buck Converter

Planned to be available until at least

2034

Protect

Yes

Regulator Type

Buck Converter

Reset

Yes

Tolerance

2%

VQ (multiple)

5V

Watchdog

Yes

Apps

Automotive, EV traction inverter, On-board charging (OBC)

Features

  • 500 mA step down voltage regulator
  • 5 V Output voltage
  • ± 2% output voltage tolerance
  • Low current: < 45μA at nominal voltage
  • Current mode PWM regulation
  • PFM mode for light load current
  • Integrated power transistor
  • 2.2 MHz switching frequency
  • 100% Duty cycle
  • Synchronization input
  • Ultra-low shutdown current: <2μA

Description

  • Optimize Vbat systems for consumption.
  • Low drop-out operation due to 100% DC
  • Compensation and soft-start
  • Flexibility in setting reset threshold
  • Flexibility in setting watchdog timing

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