Pre-regulator reference design for automotive LED headlamp drivers
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Key Document


This pre-regulator reference design delivers up to 45 W output power for automotive LED headlamp drivers. For the nominal input voltage range of 9.0 V to 16.0 V, the design delivers an output voltage of 45.0V with a maximum load current of 1.0 A. The power supply is operational for an input voltage range between 5.0 V and 24.0 V. An optional external dithering function is also available.

  • High efficiency for low power dissipation in space constrained applications
  • Smallest possible footprint for single-side placement in space constrained applications
  • Good load transient behavior resulting in small output voltage deviation
  • Optional external dithering functionality

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(Output Voltage 1)
Vin (Min) (V)9
Vin (Max) (V)16
Vout (Nom) (V)45
Iout (Max) (A)1
Output Power (W)45
Input TypeDC
TopologyBoost- Non Sync

TI Devices (1)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
TPS40210-Q1  4.5V to 52V Wide Input range current mode boost controller with 700 mV reference voltage  Step-up (boost)  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
TPS40210-Q1 Download Download

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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 942 21 Dec 2018
Design files (6)
Title Type Size (KB) Date
ZIP 27 21 Dec 2018
ZIP 442 21 Dec 2018
PDF 140 21 Dec 2018
PDF 93 21 Dec 2018
PDF 23 21 Dec 2018
PDF 104 21 Dec 2018

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