AS1390B - High Power Boost Controller and Buck Converter for LED Backlight
High Power Boost Controller and Buck Converter for LED Backlight
Description
The AS1390B is a high-power, constant-frequency boost controller with an integrated buck converter. It is designed for single mode operation. The continuous conduction mode of the AS1390B 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.
AS1390B is available in a 16-pin SOIC package.
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
- Overvoltage, Overcurrent and Overtemperature Protection
- Low Dropout Operation: 90% Duty Cycle
- Buck always ON, Boost with enable PIN
- Package: 16-pin SOIC
Applications
The device is ideal for LED backlighting for LCD - TV sets and monitors.
AS1390B Boost Controller and Buck Converter
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