MAX660CPA Fixed 1.5V~5.5V 100mA DC-DC Converter PDIP-8

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MAX660CPA Fixed 1.5V~5.5V 100mA DC-DC Converter PDIP-8 The MAX660 monolithic, charge-pump voltage inverter converts a +1.5V to +5.5V input to a corresponding -1.5V to -5.5V output. Using only two low-costcapacitors, the charge pump’s 100mA output replaces switching regulators, eliminating inductors and their associated cost, size, and EMI. Greater than 90% efficiency over most of its load-current range combined with a typical operating current of only 120µA provides ideal performance for both battery-powered and board-level voltage conversion applications. The MAX660 can also double the output voltage of an input power supply or battery, providing +9.35V at 100mA from a +5V input. A frequency control (FC) pin selects either 10kHz typ or 80kHz typ (40kHz min) operation to optimize capacitor size and quiescent current. The oscillator frequency can also be adjusted with an external capacitor ordriven with an external clock. The MAX660 is a pin-compatible, high-current upgrade of the ICL7660. The MAX660 is available in both 8-pin DIP and small-outline packages in commercial, extended, and military temperature ranges. For 50mA applications, consider the MAX860/MAX861 pin-compatible devices (also available in ultra-small µMAX packages). Features Small Capacitors 0.65V Typ Loss at 100mA Load Low 120µA Operating Current 6.5Ω Typ Output Impedance Guaranteed R OUT < 15Ω for C1 = C2 = 10µF Pin-Compatible High-Current ICL7660 Upgrade Inverts or Doubles Input Supply Voltage Selectable Oscillator Frequency: 10kHz/80kHz 88% Typ Conversion Efficiency at 100mA (I L to GND) Specifications Product Attribute Attribute Value Product Category: Switching Voltage Regulators Output Voltage: – 1.5 V to – 5.5 V, 3 V to 11 V Output Current: 100 mA Input Voltage, Max: 5.5 V Number of Outputs: 1 Output Topology: Inverting Package/Case: PDIP-8 Mounting Style: Through Hole Switching Frequency: 10 kHz to 80 kHz Minimum Operating Temperature: 0 C Maximum Operating Temperature: + 70 C Series: MAX660 Input Voltage, Min: 1.5 V Function: Inverting, Step Up Product Type: Switching Voltage Regulators Pin Configuration Applications Handheld Instruments (PDAs, Palmtops) Interface Power Supplies Laptop Computers Medical Instruments Operational Amplifier Power Supplies Package Include: 1x MAX660CPA Fixed 1.5V~5.5V 100mA DC-DC Converter PDIP-8 MAX660 Datasheet