The KIA34063AF is a monolithic control circuit containing the primary functions required for DC-DC converters. Specifically designed for step-up, step-down and voltage-inverting applications, the KIA34063AF contains an internal temperature compensated reference, comparator, duty cycle controlled oscillator with an active current limit circuit, driver and high current output switch. This device is manufactured by KEC.

Applications

• DC-DC converters
• Step-up converters
• Step-down converters
• Voltage-inverting converters
• Power supplies

Features

• Low standby current
• Operation from 3.0V to 40V input
• Current limiting
• Output switch current to 1.5A
• Adjustable output voltage
• Frequency of operation programmable from 100Hz to 100kHz

Benefits

• Versatile for multiple DC-DC conversion topologies
• Operates over a wide range of input voltages
• Internal current limiting protects against overloads
• Cost-effective solution for power conversion
• Adjustable operating frequency for design flexibility

Additional Details

The KIA34063AF simplifies the design of DC-DC converters by integrating multiple functions into a single chip. The switching frequency can be programmed using an external capacitor and resistor. An external inductor and capacitor are required for energy storage. The output voltage is adjustable using an external resistor divider. The device includes an internal current limit to protect the output switch from overcurrent conditions. The KIA34063AF is available in a variety of packages, including DIP and SOP. The low standby current and wide input voltage range make it suitable for battery-powered applications.