AP1512A Datasheet | Anachip

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 - TO220-5L, TO220-5L(R) and TO263-5L Pb-free packages - General Description The AP1512/A is a monolithic IC that design for a step-down DC/DC converter, and own the ability of driving a 2A (3A for AP1512A) load without additional transistor ponent. Due to reducing the number of external ponent, the board space can be saved easily. The external shutdown function can be controlled by logic level and then e into standby mode. The internal pensation makes feedback control have good line and load regulation without external design. Regarding protected function, thermal shutdown is to prevent over temperature operating from damage, and current limit is against over current operating of the output switch. The AP1512/A operates at a switching frequency of 50KHz thus allowing smaller sized filter ponents 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 load conditions, and +15% on the oscillator frequency. The output version included fixed 3.3V, 5V, 12V, and an adjustable type. The packages are available in a standard 5-lead TO-220 package and a 5-lead TO-263. - Applications - Simple High-efficiency step-down regulator - On-card switching regulators - Positive to negative converter - Pin Assignments ( Top View ) 5 SD 4 FB 3 Gnd 2 Output 1 VIN - Pin Descriptions Name VIN Output Gnd FB SD Description Operating voltage input Switching output...