MAX1682 General Description
The ultra-small MAX1682/MAX1683 monolithic, CMOS charge-pump voltage doublers accept input voltages ranging from +2.0V to +5.5V. Their high voltage-conversion efficiency (over 98%) and low operating current (110µA for MAX1682) make these devices ideal for both battery-powered and board-level voltage-doubler applications.
MAX1682 Maximum Ratings
IN to GND................................................................+6V to -0.3V
OUT to GND.......................................................+12V, VIN - 0.3V
OUT Output Current...........................................................50mA
Output Short-Circuit Duration ...............................1sec (Note 1)
Continuous Power Dissipation (TA = +70°C)
SOT23-5 (derate 7.1mW/°C above +70°C)..................571mW
Operating Temperature Range
MAX1682EUK/MAX1683EUK ...........................-40°C to +85°C
Junction Temperature...................................................+150°C
Storage Temperature Range .......................-65°C to +160°C
Lead Temperature (soldering, 10sec) .........................+300°C
MAX1682 Features
© 5-Pin SOT23 Package
© +2.0V to +5.5V Input Voltage Range
© 98% Voltage-Conversion Efficiency
© 110µA Quiescent Current (MAX1682)
© Requires Only Two Capacitors
© Up to 45mA Output Current
MAX1682 Typical Application
Small LCD Panels
Cell Phones
Handy-Terminals
PDAs
MAX1682 Connection Diagram
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