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RS1509S-5.0 Datasheet(PDF) 1 Page - Orister Corporation |
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RS1509S-5.0 Datasheet(HTML) 1 Page - Orister Corporation |
1 / 8 page Page No. : 1/1 DS-RS1509-04 Oct, 2007 www.Orister.com RS1509 150KHz, 2A PWM Buck DC/DC Converter Description The RS1509 is Monolithic IC that design for a step-down DC/DC Converter, and own the ability of driving a 2A load without additional transistor component. The output version included 3.3V, 5V, 12V and an adjustable type. It operates at a switching frequency of 150KHz 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. 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. Features • 3.3V, 5V, 12V and adjustable • Adjustable version output voltage range: 1.4-37V • ±4% max over line and load conditions • 150KHz ±15% fixed switching frequency • TTL shutdown capability • Operating voltage can be up to 40V • Output load current: 2A • SOP-8 and DIP-8 packages • Low power standby mode • Thermal-shuntdown and current-limit protection • High efficiency • Built-in switching a transistor on chip, requires only 4 external components Applications • Simple High-efficiency step-down regulator • Positive to negative converter • On-card switching regulators Pin Connections Pin1: Operating Voltage Input Pin5: Ground Pin2: Switch Output Pin6: Ground Pin3: Output Voltage Feedback Control Pin7: Ground 8 7 6 5 1 2 3 4 Pin4: ON/OFF Shutdown Pin8: Ground 8-Lead Plastic SOP-8 Package Code: S • 8-Lead Plastic DIP-8 Package Code: P |
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