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A charge pump IC converts, and optionally regulates, voltages using switching technology and capacitive-energy storage elements. Charge pumps offer high-efficiency and compact solutions for applications with generally low-output current requirements. Regulated charge pumps maintain a constant output with a varying voltage input.

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Featured Products

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MAX77932C 8A Dual-Phase Switched-Capacitor Converter
The MAX77932C is a standalone, dual-phase switched-capacitor converter with integrated power swi...
  • ​8A Switched Capacitor Converter
  • 2S to 1S Battery Voltage Conversion (VOUT = VIN/2)
  • Integrated Power Switches
  • Low IQ: 30μA Operating, 4μA Shutdown
  • Soft-Start with Programmable Current and Timeout
  • Programmable Input Overvoltage Lockout
  • Programmable Output Overvoltage Lockout
  • Programmable Overcurrent Protection
  • Programmable Switching Frequency 0.25MHz to 1.5MHz
  • Thermal Alarm and Protection
  • Chip Enable Input
  • Power Good Indicator Output
  • Frequency Dithering
  • I2C Interface with Interrupt
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ICL7660 Switched-Capacitor Voltage Converters
The MAX1044 and ICL7660 are monolithic, CMOS switched-capacitor voltage converters that invert, ...
  • Miniature µMAX Package
  • 1.5V to 10.0V Operating Supply Voltage Range
  • 98% Typical Power-Conversion Efficiency
  • Invert, Double, Divide, or Multiply Input Voltages
  • BOOST Pin Increases Switching Frequencies (MAX1044)
  • No-Load Supply Current: 200µA Max at 5V
  • No External Diode Required for Higher-Voltage Operation
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MAX1044 Switched-Capacitor Voltage Converters
The MAX1044 and ICL7660 are monolithic, CMOS switched-capacitor voltage converters that invert, ...
  • Miniature µMAX Package
  • 1.5V to 10.0V Operating Supply Voltage Range
  • 98% Typical Power-Conversion Efficiency
  • Invert, Double, Divide, or Multiply Input Voltages
  • BOOST Pin Increases Switching Frequencies (MAX1044)
  • No-Load Supply Current: 200µA Max at 5V
  • No External Diode Required for Higher-Voltage Operation
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MAX680 +5V to ±10V Voltage Converters
The MAX680/MAX681 are monolithic, CMOS, dual charge-pump voltage converters that provide ±10V ou...
  • 95% Voltage-Conversion Efficiency
  • 85% Power-Conversion Efficiency
  • +2V to +6V Voltage Range
  • Only Four External Capacitors Required (MAX680)
  • No Capacitors Required (MAX681)
  • 500µA Supply Current
  • Monolithic CMOS Design
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MAX681 +5V to ±10V Voltage Converters
The MAX680/MAX681 are monolithic, CMOS, dual charge-pump voltage converters that provide ±10V ou...
  • 95% Voltage-Conversion Efficiency
  • 85% Power-Conversion Efficiency
  • +2V to +6V Voltage Range
  • Only Four External Capacitors Required (MAX680)
  • No Capacitors Required (MAX681)
  • 500µA Supply Current
  • Monolithic CMOS Design
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MAX16945 30mA Inverting Charge Pump in SOT23 for EMI-Sensitive Automotive Applications
The MAX16945 ultra-small, monolithic, CMOS charge-pump voltage inverter accepts an input voltage...
  • +1.4V to +5.5V Input Voltage Range
  • 30mA Guaranteed Output Current at +105°C
  • Slew-Rate Limited to Reduce EMI
  • 0.1µA Logic-Controlled Shutdown
  • Low 12Ω Output Resistance
  • Startup Current Limited
  • 6-Pin SOT23 Package
  • AEC-Q100 Qualified
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MAX860 50mA, Frequency-Selectable, Switched-Capacitor Voltage Converters
The MAX860/MAX861 charge-pump voltage converters invert input voltages ranging from +1.5V to +5....
  • 8-Pin, 1.11mm High µMAX Package
  • Invert or Double the Input Supply Voltage
  • Three Selectable Switching Frequencies
  • High Frequency Reduces Capacitor Size
  • 87% Efficiency at 50mA
  • 200µA Quiescent Current (MAX860)
  • 1µA Shutdown Supply Current
  • 600mV Voltage Drop at 50mA Load
  • 12Ω Output Resistance
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MAX861 50mA, Frequency-Selectable, Switched-Capacitor Voltage Converters
The MAX860/MAX861 charge-pump voltage converters invert input voltages ranging from +1.5V to +5....
  • 8-Pin, 1.11mm High µMAX Package
  • Invert or Double the Input Supply Voltage
  • Three Selectable Switching Frequencies
  • High Frequency Reduces Capacitor Size
  • 87% Efficiency at 50mA
  • 200µA Quiescent Current (MAX860)
  • 1µA Shutdown Supply Current
  • 600mV Voltage Drop at 50mA Load
  • 12Ω Output Resistance
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MAX1595 Regulated 3.3V/5.0V Step-Up/Step-Down Charge Pump
The MAX1595 charge-pump regulator generates either 3.3V or 5V from a 1.8V to 5.5V input. The uni...
  • Ultra-Small: Requires Only Three Ceramic Capacitors
  • No Inductors Required
  • Up to 125mA Output Current
  • Regulated ±3% Output Voltage
  • 1MHz Switching Frequency
  • 1.8V to 5.5V Input Voltage
  • 220µA Quiescent Current
  • 0.1µA Shutdown Current
  • Load Disconnect in Shutdown
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MAX1683 Switched-Capacitor Voltage Doublers
The ultra-small MAX1682/MAX1683 monolithic, CMOS charge-pump voltage doublers accept input volta...
  • 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
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MAX1682 Switched-Capacitor Voltage Doublers
The ultra-small MAX1682/MAX1683 monolithic, CMOS charge-pump voltage doublers accept input volta...
  • 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
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MAX1697 60mA, SOT23 Inverting Charge Pump with Shutdown
The MAX1697 ultra-small, monolithic, CMOS charge-pump voltage inverter accepts an input voltage ...
  • 60mA Output Current
  • Low 12Ω Output Resistance
  • 150µA Supply Current (MAX1697R)
  • Requires Only Two 1µF Capacitors (MAX1697U)
  • Start-Up Current Limited
  • +1.25V to +5.5V Input Voltage Range
  • Slew-Rate Limited to Reduce EMI
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MAX5008 Regulated 5V USB Charge Pump with Programmable Current Limit
The MAX5008 charge-pump regulator generates a regulated 5V output up to 125mA with a 2.95V to 5....
  • Regulated 5V Output Up to 125mA
  • Indefinite Short-Circuit Protection
  • Adjustable Output Current Limit
  • No Inductors Required
  • 0.1µA Shutdown Current
  • Thermal Shutdown
  • Fault Output Indicates Overcurrent or Output Voltage Out of Regulation
  • 2.95V to 5.5V Input Voltage Range
  • 10-Pin µMAX Package
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MAX881R Low-Noise Bias Supply in µMAX with Power OK for GaAsFET PA
The MAX881R low-noise, inverting power supply is designed for biasing GaAsFET power amplifiers i...
  • Small µMAX Package
  • 1mVP-P Output Voltage Ripple and Noise
  • Power-OK Signal to Control GaAsFET Drain Switch
  • 0.05µA Logic-Controlled Shutdown
  • 1ms Guaranteed Startup
  • 2.5V to 5.5V Input
  • -0.5V to (-VIN + 0.6V) Output at up to 4mA
  • Operates with One 4.7µF and Three 0.22µF Capacitors (no inductors needed)
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MAX1720 SOT23, Switched-Capacitor Voltage Inverters with Shutdown
The ultra-small MAX1719/MAX1720/MAX1721 monolithic, CMOS charge-pump inverters accept input volt...
  • 1nA Logic-Controlled Shutdown
  • 6-Pin SOT23 Package
  • 99.9% Voltage Conversion Efficiency
  • 50µA Quiescent Current (MAX1720)
  • +1.5V to +5.5V Input Voltage Range
  • 25mA Output Current
  • Requires Only Two 1µF Capacitors (MAX1719/MAX1721)
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MAX1721 SOT23, Switched-Capacitor Voltage Inverters with Shutdown
The ultra-small MAX1719/MAX1720/MAX1721 monolithic, CMOS charge-pump inverters accept input volt...
  • 1nA Logic-Controlled Shutdown
  • 6-Pin SOT23 Package
  • 99.9% Voltage Conversion Efficiency
  • 50µA Quiescent Current (MAX1720)
  • +1.5V to +5.5V Input Voltage Range
  • 25mA Output Current
  • Requires Only Two 1µF Capacitors (MAX1719/MAX1721)
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MAX1719 SOT23, Switched-Capacitor Voltage Inverters with Shutdown
The ultra-small MAX1719/MAX1720/MAX1721 monolithic, CMOS charge-pump inverters accept input volt...
  • 1nA Logic-Controlled Shutdown
  • 6-Pin SOT23 Package
  • 99.9% Voltage Conversion Efficiency
  • 50µA Quiescent Current (MAX1720)
  • +1.5V to +5.5V Input Voltage Range
  • 25mA Output Current
  • Requires Only Two 1µF Capacitors (MAX1719/MAX1721)
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MAX871 Switched-Capacitor Voltage Inverters
The ultra-small MAX870/MAX871 monolithic, CMOS charge-pump inverters accept input voltages rangi...
  • 5-Pin SOT23-5 Package
  • 99% Voltage Conversion Efficiency
  • Invert Input Supply Voltage
  • 0.7mA Quiescent Current (MAX870)
  • +1.4V to +5.5V Input Voltage
  • Require Only Two Capacitors
  • 25mA Output Current
  • Shutdown Control
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MAX870 Switched-Capacitor Voltage Inverters
The ultra-small MAX870/MAX871 monolithic, CMOS charge-pump inverters accept input voltages rangi...
  • 5-Pin SOT23-5 Package
  • 99% Voltage Conversion Efficiency
  • Invert Input Supply Voltage
  • 0.7mA Quiescent Current (MAX870)
  • +1.4V to +5.5V Input Voltage
  • Require Only Two Capacitors
  • 25mA Output Current
  • Shutdown Control
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MAX1759 Buck/Boost Regulating Charge Pump in µMAX
The MAX1759 is a buck/boost regulating charge pump that generates a regulated output voltage fro...
  • Regulated Output Voltage (Fixed 3.3V or Adjustable 2.5V to 5.5V)
  • 100mA Guaranteed Output Current
  • +1.6V to +5.5V Input Voltage Range
  • Low 50µA Quiescent Supply Current
  • 1µA Shutdown Mode
  • Load Disconnected from Input in Shutdown
  • High 1.5MHz Operating Frequency
  • Uses Small Ceramic Capacitors
  • Short-Circuit Protection and Thermal Shutdown
  • Small 10-Pin µMAX Package

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