6V - 18V Input Sync-Buck 0.5A LED Driver Reference Design

(ACTIVE) PMP10487

Description & Features

Technical Documents

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Key Document

Description

This LM20323 integrated FET sync-buck converter regulates the current in a white LED to 0.5A with minimum parts count. LED current is accurately measured with an INA193 and provides feedback to regulate the output current.

Features
  • High switching frequency (520KHz) allows small size
  • Integrated controller allows low parts count
  • This design has been verified and includes a test report

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


  




Parametrics
 PMP10487.1
(Output Voltage 1)
Vin (Min) (V)6
Vin (Max) (V)18
Vout (Nom) (V)2.8
Iout (Max) (A).5
Output Power (W)1.4
Isolated/Non-IsolatedNon-Isolated
Input TypeDC
TopologyBuck- Synchronous

TI Devices (2)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
INA193  -16V to +80V, Low- or High-side, High-Speed, Voltage Output Current Shunt Monitor  Current Sense Amplifiers  Sample & Buy Not Available
LM20323  4.5-36V, 3A Current Mode Synchronous Buck Regulator  Step-Down (Buck)  Sample & Buy View Design Kits & Evaluation Modules

Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 1675 14 Apr 2016 77
Design files (6)
Title Abstract Type Size (KB) Date Views
PDF 47 14 Apr 2016 22
PDF 105 14 Apr 2016 23
PDF 122 14 Apr 2016 85
ZIP 392 14 Apr 2016 45
ZIP 22325 14 Apr 2016 30
PDF 5163 14 Apr 2016 19


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