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3.00 د.إ

Output voltage: 3.3V, 5V, 12V and adjustable output version.
– Adjustable version output voltage range, 1.23V to 18V+4%.
– 150KHz +15% fixed switching frequency.
– Thermal-shutdown and current-limit protection.
– ON/OFF shutdown control input.
– Operating voltage can be up to 22V.
– Output load current: 2A.
– Short Circuit Protect (SCP).
– SOP-8L Pb-Free packages.
– Low power standby mode.
– Built-in switching transistor on chip.
1.2 General Descriptions
The AX3001 series are monolithic IC designed for a step-down DC/DC converter,
and own the ability of driving a 2A 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 current limit function occurs and VFB is down
below 0.5V, the switching frequency will be reduced. The AX3001 series operates at a
switching frequency of 150KHz thus allow 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 chips are available in a standard 8-lead SOP

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