The MC34063AG is a monolithic control circuit manufactured by UTC (Unisonic Technologies Co., Ltd.) delivering the primary functions for DC-DC converters. This device contains an internal temperature compensated reference, comparator, controlled duty cycle oscillator with an active current limit circuit, driver and high current output switch.

Applications:

• Step-Up Converters
• Step-Down Converters
• Voltage Inverting Converters
• DC-DC Power Supplies
• Battery Chargers

Features:

• Operating voltage: 3.0V to 40V
• Low Standby Current
• Current Limiting
• Output Switch Current to 1.5A
• Adjustable Output Voltage

Benefits:

• Flexibility to design various converter topologies
• Low power consumption in standby mode
• Protection against overcurrent conditions
• High output current capability
• Ability to set desired output voltage

Technical Specifications:

The MC34063AG operates from a supply voltage range of 3.0V to 40V. It has an internal oscillator frequency that can be adjusted using external components. The output switch can handle a current of up to 1.5A. The device includes an active current limit circuit to protect the output switch from overcurrent conditions. It features a temperature-compensated reference to ensure stable operation over a wide temperature range. The device is available in various packages, including DIP-8 and SO-8. The operating temperature range is typically -40°C to +85°C.

This versatile DC-DC converter control circuit simplifies the design of various power supply circuits. Its wide operating voltage range and adjustable output voltage make it suitable for a broad range of applications. The internal current limiting feature enhances the reliability of the circuit by preventing damage due to overcurrent. The UTC MC34063AG is a cost-effective and reliable choice for DC-DC conversion applications.