AP1506 Datasheet | Diodes Incorporated

150KHz, 3A PWM BUCK DC/DC CONVERTER Description Pin Assignments The AP1506 series are monolithic IC designed for a stepdown DC/DC converter, and own the ability of driving a 3A load without external transistor. Due to reducing the number of external ponents, 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 to prevent over current operating of the output switch. If current limit function occurred and VFB is down to 0.5V below, the switching frequency will be reduced. The AP1506 series operate at a switching frequency of 150KHz 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 TO263 and TO220. ( Top View ) Metal Tab GND TO263-5L 5 SD 4 FB 3 Gnd 2 Output 1 VIN ( Top View ) 5 SD 4 FB 3 Gnd 2 Output 1 VIN TO220-5L/TO220-5L(R) Features Applications - Output Voltage: 3.3V, 5V, 12V and Adjustable Output Version - Adjustable Version Output Voltage Range, 1.23V to 18V+4% - 150KHz +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 22V - Output Load Current: 3A - Lead Free packages: TO263-5L and TO220-5L(R) - TO263-5L and TO220-5L(R): Available in “Green” Molding pound (No Br, Sb) - Low Power standby mode - Built-in Switching Transistor On Chip - Lead Free Finish/Ro...