BLL3330 Power Management IC – High-Voltage Asynchronous DC/DC Controller | Up to 80V Input | SOT23-6
Shanghai Belling
The BLL3330 is a high-voltage Power Management IC designed as an asynchronous DC/DC controller with an internal MOSFET, optimized for large-screen display power systems.
It supports a 6.0V to 28V operating input range with up to 80V maximum VIN capability and uses a 0.4V feedback reference.
Its 120kHz switching frequency and robust architecture make it suitable for high-voltage boost and regulation stages in display and monitor systems.
Key Specifications
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Input Voltage (VIN): 6.0V – 28V (80V max)
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Output Voltage (VOUT): Adjustable (VFB = 0.4V)
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Quiescent Current (IQ): 0.32mA
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Switching Frequency (FOSC): 120kHz
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Operating Mode: Asynchronous PWM / PFM
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Package: ESOP8
Applications
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LCD televisions
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Monitors
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Flat-panel display power systems
Features
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High-voltage capability up to 80V
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Internal MOSFET design
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Stable low-frequency operation
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Optimized for display backlight power
