ROHM manufactures a family of synchronous buck converters with similar features but different specifications to suit various applications. Understanding the differences helps in selecting the optimal device for a given design:
Works alongside OCP by triggering a frequency foldback or hiccup sequence when the feedback voltage drops significantly. 9e102 datasheet
Not recommended. The 9E102 is designed for 5V TTL. At 3.3V, delays increase unpredictably, and outputs may not reach valid logic levels. Use a level shifter or choose a modern 3.3V delay line (e.g., 74LVC1GXX series). ROHM manufactures a family of synchronous buck converters
If the original 9E102 is obsolete or unavailable, consider these alternatives: delays increase unpredictably