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RS1509S-5.0 Datasheet(PDF) 1 Page - Orister Corporation

Part # RS1509S-5.0
Description  150KHz, 2A PWM Buck DC/DC Converter
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Manufacturer  ORISTER [Orister Corporation]
Direct Link  http://www.orister.com
Logo ORISTER - Orister Corporation

RS1509S-5.0 Datasheet(HTML) 1 Page - Orister Corporation

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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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