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LSP3120

Lite-On

3A PWM Buck DC-DC Converter

Liteon Semiconductor Corporation LSP3120 52KHZ 3A PWM Buck DC/DC Converter FEATURES Output voltage: 3.3V, 5.0V, 12V, and...


Lite-On

LSP3120

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Description
Liteon Semiconductor Corporation LSP3120 52KHZ 3A PWM Buck DC/DC Converter FEATURES Output voltage: 3.3V, 5.0V, 12V, and adjustable output version Adjustable version output voltage range:1.23V to 37V±4% 52KHz±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: 3A Low power standby mode Built-in switching transistor on chip TO220-5L,TO263-5L packages GENERAL DESCRIPTION The LSP3120 series are monolithic IC that design for a step-down DC/DC converter, and own the ability of driving a 3A 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 LSP3120 series operates at a switching frequency of 52 KHz 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. Th...




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