LM5033

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LM5033 Features

• Internal high voltage (100V) start-up regulator
• Single resistor oscillator setting
• Synchronizable
• Precision reference output
• Adjustable soft-start
• Over-current protection
• Direct optocoupler interface
• 1.5A peak gate drivers
• Thermal Shutdown

LM5033 Description

The LM5033 High Voltage PWM controller contains all the features needed to implement Push-Pull, Half-Bridge, and Full-Bridge topologies. Applications include closed loop voltage mode converters with a highly regulated output voltage, or an open loop "DC transformer" such as an Intermediate Bus Converter (IBC) with an efficiency >95%. The small 10 pin LLP-10 package with exposed pad provides for efficient thermal management. Two alternating gate driver outputs with a guaranteed deadtime are provided. The LM5033 includes a start-up regulator that operates over a wide input range of 15V to 100V. Additional features include: precision voltage reference output, current limit detection, remote shutdown, softstart, sync capability and thermal shutdown. This high speed IC has total propagation delays less than 100 ns and a 1MHz capable oscillator.

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