Microchip Technology, Inc. AC DC Converters, Offline Switches MIC38C42-1BM-TR

The MIC38C42-1BM-TR is a high-performance, current-mode PWM controller designed for offline switched-mode power supplies and DC-to-DC converters. It operates within an ambient temperature range of -40¬8C to +85¬8C and features a fast output rise time of 40 ns and a fall time of 30 ns, making it suitable for applications requiring quick response times. This device utilizes a low-power BiCMOS process, resulting in a typical start-up current of 50 OºA and a quiescent operating current of 4 mA. It supports a maximum operating voltage of 20V and is pin-compatible with UC384x devices, allowing for easy integration into existing designs. The MIC38C42-1BM-TR includes undervoltage lockout (UVLO) with hysteresis, rail-to-rail output capability, and a trimmed 5V bandgap reference, enhancing its efficiency and performance. The product is available in multiple package types, including 8-lead SOIC, MSOP, and DIP, catering to various design requirements. Its versatility makes it suitable for applications such as step-down buck regulators, step-up boost regulators, flyback converters, and synchronous FET converters.