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AX1509 fiches techniques PDF

Orister - 2A PWM Buck DC/DC Converter

Numéro de référence AX1509
Description 2A PWM Buck DC/DC Converter
Fabricant Orister 
Logo Orister 





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AX1509 fiche technique
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AX1509
150KHz, 2A PWM Buck DC/DC Converter
Description
The AX1509 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: 1.25-18V
• ±4% max over line and load conditions
150KHz ±15% fixed switching frequency
TTL shutdown capability
Operating voltage can be up to 22V
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
87 65
12 34
Pin1: Operating Voltage Input
Pin2: Switch Output
Pin3: Output Voltage Feedback Control
Pin4: ON/OFF Shutdown
Pin5: Ground
Pin6: Ground
Pin7: Ground
Pin8: Ground
Page No. : 1/8
8-Lead Plastic DIP-8
Package Code: P
8-Lead Plastic SOP-8
Package Code: S
DS-AX1509-01 Aug, 2006
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