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4.5-36V, 2A Current Mode Synchronous Buck Regulator with Adjustable Frequency


Models (1)

Title Category Type Date
Export TINA-TI Transient Spice Model from WEBENCH (Rev. A) TINA-TI Spice Model PDF 06 Nov 2015

Design kits & evaluation modules (1)

Name Part# Type
36V, 2A PowerWise® Adjustable Frequency Synchronous Buck Regulator Evaluation Module LM20242EVAL Evaluation Modules & Boards

Reference designs

5V to 3.3V 1.2A DC-DC Converter with 200mS Vout Hold-up Time Circuit Reference Design

The PMP4494 is a 5V to 3.3V 1.2A DC-DC converter with a Vout hold-up circuit. The synchronous buck converter LM20242 is used in the design to provide high efficiency for the system voltage. A boost converter TPS61170 boosts an auxiliary rail from 10V up to 20V to provide the backup voltage. A supply (...)

View the Important Notice for reference designs covering authorized use, intellectual property matters and disclaimers.

Description Part Number Company Tool Type
Cyclone III-based MercuryCode CYCLONE-3-MERCURYCODE-REF Texas Instruments Reference designs
LM20242 Demonstration Board LM20242-REF Texas Instruments Reference designs

Software (1)

LM20242 Demonstration Board CAD File  (ZIP 436 KB )    27 Jan 2012  

Development tools (1)

Name Part# Type
LM20242 Calculator spreadsheet LM20242DESIGN-CALC Calculation Tools
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WEBENCH® Designer LM20242

  Min   Max Range
Vin  V 4.5 to 36.0V
Vout  V 0.8 to 33V
Iout  A ≤ 2A
Ambient Temp  °C -40 to 125°C