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发布者:微桥AX3023 发布时间:2010-1-1 阅读:6194次    关键字: AX3023
AX3023-200KHz,1A PWM Buck DC/DC Converter停产


AX3023-200KHz,1A PWM Buck DC/DC Converter DataSheet (2015年7月停产)

GENERAL DESCRIPTION
    The AX3023 series are monolithic IC designed for a step-down DC/DC converter, and own the ability of driving a 1A load without additional transistor. It saves board space. The external shutdown function can be controlled by logic level and then come into standby mode. The internal compensation makes feedback control having 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. If the AX3023’s VFB is down below 0.5V, the switching frequency will be reduced. The AX3023 operates at a switching frequency of 200KHz thus allow smaller sized filter components. Other features include a guaranteed +3% tolerance on output voltage under specified input voltage and output load conditions, The chips are available in SOT23-5L and SOP-8L packages.

FEATURES
- Output voltage: adjustable output version.
- Adjustable version output voltage range: 0.745V to 22V±3%.
- Fixed switching frequency is 200KHz
- Thermal-shutdown and current-limit protection.
- ON/OFF shutdown control input.
- Short Circuit Protect (SCP).
- Operating voltage can be up to 24V.
- Output load current: 1A.
- SOT23-5L and SOP-8L packages.
- Low power standby mode.
- Built-in switching transistor on chip.

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