AS1390A: High Power Boost Controller and Buck Converter for LED Backlight

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 bandwith 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.

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Key Features

  • High Efficiency: Up to 95%
  • Supply Voltage Range: 10V to 30V
  • Boost Output Current: up to 3A
  • Continuous Conduction Mode
  • Undervoltage Lockout with hysteresis

AS1390A Applications

  • LED Backlighting for LCD TV Sets and Monitors

AS1390A Product Facts

Input voltage [V]10-30
Output voltage boost controller [V]100
Output current boost3A
Output buck converter5V/100mA
Overvoltage protection
Overcurrent protection
Overtemperature protection [ ]
3D features