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AP1501A-12K5A DATASHEET

 
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yangandjiao



Joined: 10 Apr 2008
Posts: 17

PostPosted: Mon May 19, 2008 1:31 am    Post subject: AP1501A-12K5A DATASHEET Reply with quote

Features(AP1501A-12K5A DATASHEET AND PDF DOWNLOAD)
- Output voltage: 3.3V, 5V, 12V and adjustable output version
- Adjustable version output voltage range, 1.23V to 37V+4%
- 150Khz +15% fixed switching frequency
- Voltage mode non-synchronous PWM control
- Thermal-shutdown and current-limit protection
- ON/OFF shutdown control input
- Operating voltage can be up to 40V
- Output load current: 5A
- TO220-5L, TO220-5L(R) and TO263-5L packages
- Low power standby mode
- Built-in switching transistor on chip

�� Applications
- Simple High-efficiency step-down regulator
- On-card switching regulators
- Positive to negative converter

�� General Description
The AP1501A series are monolithic IC that design for a step-down DC/DC converter, and own the ability of driving a 5A load without additional transistor component. Due to reducing the number of external component, the board space can be saved easily. The external shutdown function can be controlled by logic level and then come into standby mode. The internal compensation makes
feedback control have 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. The AP1501A series 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. The output version included fixed 3.3V,
5V, 12V, and an adjustable type. The packages areThe packages are available in a standard 5-lead TO-220 package and a 5-lead TO-263.
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