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PDF ( 数据手册 , 数据表 ) AX1509

零件编号 AX1509
描述 2A PWM Buck DC/DC Converter
制造商 Orister
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AX1509 数据手册, 描述, 功能
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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
www.Orister.com







AX1509 pdf, 数据表
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Important Notice:
All rights are reserved. Reproduction in whole or in part is prohibited without the prior written approval of Orister Corporation.
Orister Corporation reserves the right to make changes to its products without notice.
Orister Corporation products are not warranted to be suitable for use in Life-Support Applications, or systems.
Orister Corporation assumes no liability for any consequence of customer product design, infringement of patents, or application assistance.
Contact Info:
Orister Corporation
No. 8, Lane 136, Jiaren St., ZhuBei City,
HsinChu Country 302, Taiwan
TEL: +886 3 5588 908
FAX: +886 3 5588 909
http://www.orister.com
DS-AX1509-01 Aug, 2006
www.Orister.com














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