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DC/DC Adjustable Charge Pump Voltage Converter, Inverter, Multiplier, 1.5V - 10Vin, 20mA out, DIP-8Product OverviewThe MAX1044EPA+ is a monolithic CMOS switched capacitor voltage converter in 8pin DIP package. This device inverts, doubles, divides or multiplies a positiveinput voltage. It is pin compatible with the industry standard ICL7660 andLTC1044 devices. It operates from 1.5V to 10V with no external diode over thefull temperature range. The MAX1044 delivers 10mA with 0.5V output drop. Thedevice combines low quiescent current and high efficiency. Oscillator controlcircuitry and four power MOSFET switches are included on-chip. It has a BOOSTpin that raises oscillator frequency above audio band and reduces externalcapacitor size requirements. Typical applications include generating -5V supplyfrom +5V logic supply to power analogue circuitry, personal communicationsequipment, op-amp power supplies, EIA/TIA-232E and EIA/TIA-562 power supplies,data acquisition systems and panel meters.98% typical power conversion efficiencyOperating temperature range from -40°C to 85°CSupply current of 30µA at TA = +25°C (pins 1 and 7 no connection, LV open)No external diode required for higher voltage operationMaximum output resistance of 100 ohm at TA = +25°C (IL = 20mA, fOSC = 5KHz, LVopen)Oscillator frequency of 5KHz at V+ = 5V and 1KHz at V+ = 2VVoltage conversion efficiency of 99.9%Oscillator impedance of 100Kohm at V+ = 5VApplicationsPower Management, Portable Devices, Consumer ElectronicsProduct InformationOutput Type: AdjustableInput Voltage Min: 1.5VInput Voltage Max: 10VDC / DC Converter IC Case: DIPNo. of Pins: 8PinsOutput Current: 20mAAdjustable Output Voltage Min: -10VAdjustable Output Voltage Max: 20VTopology: Divider, Doubler, Inverting, MultiplierOperating Temperature Max: 85°CMSL: MSL 1 - Unlimited