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TLD5542-1QV
  • TLD5542-1QV

TLD5542-1QV

Active and preferred

The H-Bridge architecture is among the most efficient buck-boost topology for high current applications. The device can work in current mode (E.G. LED driver, battery charger) or as a voltage regulator. Capable to drive multiple LED functions (E.G. LB, HB, DRL) with a single DC-DC converter for a more compact and efficient design.

Infineon Technologies TLD5542-1QV Product Info

16 April 2026 0

Parameters

Dimming

Analog and Digital

fSW range

200 kHz to 700 kHz

Inhibit

Yes

Input Voltage range

4.5 V to 40 V

Iq

1.5 µA

Open Load Detection

Yes

Operating Temperature range

-40 °C to 150 °C

Output Voltage max

55 V

Planned to be available until at least

2034

PWM

Yes

Short Circuit Protection

Yes

Tolerance

3.0%

Topology

DC-DC Synchronous H-Bridge with SPI

Type

Buck-boost

VS range

4.5 V to 40 V

Apps

Automotive, Automotive LED lighting systems

Features

  • High Power Direct Buck boost controller
  • SPI interface: diagnostics and control
  • Spread Spectrum for improved EMC
  • multi-load single inductor applications
  • High efficiency (up to 95%)
  • Limp Home function uC Less operation
  • Output: 2V-55V Input: 4.5V-40V

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