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AP1512A-33K5A Datasheet(PDF) 1 Page - Anachip Corp |
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AP1512A-33K5A Datasheet(HTML) 1 Page - Anachip Corp |
1 / 12 page AP1512/A 50KHz, 2A/3A PWM Buck DC/DC Converter This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sale of the product. Rev.1.1 Oct. 14, 2005 1/12 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 Applications - Simple High-efficiency step-down regulator - On-card switching regulators - Positive to negative converter 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 component. Due to reducing the number of external component, the board space can be saved easily. The external shutdown function can be controlled by logic level and then come into standby mode. The internal compensation 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 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 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. Pin Assignments TO220-5L ( Top View ) ( Top View ) TO263-5L 1 V IN 5 SD 4 FB 3 Gnd 2 Output Metal Tab GND 1 V IN 5 SD 4 FB 3 Gnd 2 Output Pin Descriptions Name Description VIN Operating voltage input Output Switching output Gnd Ground FB Output voltage feedback control SD ON/OFF Shutdown |
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