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AS1390A LED Power Converter

High power boost controller and buck converter for LED backlight


  • High efficiency: Up to 95%
  • Supply voltage range: 10V to 30V
  • Boost output current: Up to 3A
  • Continuous conduction mode
  • Undervoltage lockout with hysteresis

Product parameters

Input Voltage [V] 10-30
Output Voltage Boost Controller [V] 100
Output Current Boost [A] 3
Output Buck Converter 5V/100mA
Overvoltage Protection Yes
Overcurrent Protection Yes
Overtemperature Protection Yes
3D Features Yes
Package QFN-20

General Description

The AS1390A is a high-power, constant-frequency boost controller with an integrated buck converter. It can be used for the boost converter in TV sets which are optimized for 2D and 3D mode. The continuous conduction mode of the AS1390A provides superior bandwidth and transient response. The two output voltages for the boost controller (2D and 3D mode) can be programmed with an external resistor divider. The buck converter is optimized for suppling a /P with 5V. The AS1390A is available in a 20-Pin QFN (4x4mm) package.

This product suits for the following applications:

  • LED backlighting for LCD – TV sets and monitors

Technical Documents

Name Type Description Version Language
AS1390_AN000165_1-00.pdf Application Note 2D/3D boost controller 1-00 English
AS1390A_BD000337_1-00.png Block Diagram AS1390A Block Diagram 1-00 English
AS1390_DS000272_2-00.pdf Datasheet Document version 1.7 (AS1390A, AS1390B) 2-00 English
AS11xx_AS13xx_AS17xx_AS349x_AS36xx_EN000160_1-00.pdf EoL Notification AS11xx_AS13xx_AS17xx_AS349x_AS36xx (issued 2018-Oct) 1-00 English

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