MAX642ACPA+

MAXIM INTEGRATED PRODUCTS  MAX642ACPA+  芯片, 开关稳压控制器, 可调

The is a fixed output 10W CMOS step-up switching regulator in 8 pin DIP package. This regulator is preset to +12V output voltage however can be set to other levels by adding 2 resistors. Device is designed for minimum component DC-DC converter circuit in 5mW to 10mW range. It is used in uninterruptible board level power supplies, power conditioning for battery systems and portable instruments and communication.

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Operating voltage range from 2V to 16.5V

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Oscillator frequency is 50KHz at Vout = +12V

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Oscillator duty cycle is 50%

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Supply current of 0.5mA at Vout = +12V

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Internal reference voltage of 1.31V at TA= +25°C

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Typical efficiency of 80% with external MOSFET

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Line regulation of 0.08%Vout, operating temperature range from 0°C to 70°C

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Load regulation of 0.2%Vout

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On-chip driver for high power external MOSFET