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APE1702 Datasheet(PDF) 1 Page - Advanced Power Electronics Corp. |
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APE1702 Datasheet(HTML) 1 Page - Advanced Power Electronics Corp. |
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1 / 10 page  Advanced Power Electronics Corp. FEATURES DESCRIPTION Output Voltage : 3.3V, 5V, 12V and Adjustable Output Voltage Adjustable Version Output Voltage Range, 1.23V to 19.5V+4% 150KHz +15% Fixed Switching Frequency. Voltage Mode Non-synchronous PWM Control. Thermal-shutdown and Current-limit Protection. ON/OFF Shutdown Control Input. Short Circuit Protect(SCP) Operating Voltage can be up to 22V Output Load Current 3A 5-Lead TO-263/TO-220 Low Power Standby Mode. Built-in Switching Transistor on Chip RoHS Compliant 1. ADJUSTABLE OUTPUT VOLTAGE VERSION 2. ADJUSTABLE OUTPUT VOLTAGE VERSION WITH DELAYED STARTUP Data and specifications subject to change without notice 200803105 APE1702 TYPICAL APPLICATION 1 150KHz, 3A PWM BUCK DC/DC CONVERTER The APE1702 series are monolithic IC designed for a step-down DC/DC converter, and own the ability of driving a 3A load without additional transistor. It saves board space. The external shutdown function can be controlled by logic level and then come into standby mode. The internal compen- sation makes feedback control having 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. if current limit function occurs and VFB is down below 0.5V the switching frequency will be reduced. The APE1702 series operates at a switching frequency of 150KHz thus allow 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 con- ditions, and +15% on the oscillator frequency. The output version included fixed 3.3V, 5V, 12V and an adjustable type. The chips are available in a 5-Lead TO-263 and 5-Lead TO-220 package. |
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