AP1512

AP1512/A 50KHz, 2A/3A PWM BUCK DC/DC CONVERTER Features Output voltage: 3.3V, 5V, 12V and adjustable output version Adjustable version output voltage range, 1.23V to 37V+4% 50KHz +15% fixed switching frequency Voltage mode non-synchronous PWM control Thermal-shutdown and current-limit protection ON/OFF shutdown control input Operating voltage can be up to 60V Output load current: 2A (for AP1512) 3A (for AP1512A) Low power standby mode Built-in switching transistor on chip Lead Free Finish/ RoHS Compliant (Note 1) General Description The AP1512/A is a monolithic IC designed for use as a step-down DC/DC converter with the ability of driving a 2A (3A for AP1512A) load without additional transistor components. The board space is reduced since AP1512/A requires few external components. The external shutdown function is controlled by logic level and can be put into standby mode. The internal compensation ensures feedback control has good line and load regulation without external design. Both an integrated Thermal shutdown and Current Limit function are provided to prevent damage from exceeding temperature operation and against exceeding the current operating of the output switch. The AP1512/A operates at a switching frequency of 50KHz thus allowing smaller sized filter components than what would be needed with lower frequency switching regulators. Other features include a guaranteed +4% tolerance on output voltage under specified input voltage and output loa...