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MAX865：Compact, Dual-Output Charge Pump

Generates Bipolar Outputs, Ideal for Space-Sensitive Applications

The MAX865 is a CMOS charge-pump DC-DC converter in an ultra-small µMAX® package. It produces positive and negative outputs from a single positive input, and requires only four capacitors. The charge pump first doubles the input voltage, then inverts the doubled voltage. The input voltage ranges from +1.5V to +6.0V. The internal oscillator is guaranteed to be between 20kHz and 38kHz, keeping noise above the audio range while consuming minimal supply current. A 75Ω output impedance permits useful output currents up to 20mA. The MAX865 comes in a 1.11mm-high, 8-pin µMAX package that occupies half the board area of a standard 8-pin SOIC. For a device with selectable frequencies and logic-controlled shutdown, refer to the MAX864 data sheet.

Key Features 1.11mm-High µMAX Package Compact: Circuit Fits in 0.08in² Requires Only Four Capacitors Dual Outputs (positive and negative) +1.5V to +6.0V Input Voltage 20kHz (min) Frequency (above the audio range)

MAX865: Typical Operating Circuit Applications/Uses Data Acquisition LCD Panels Low-Cost Split Supply for Low-Voltage Low-Voltage GaAsFET Bias in Wireless Handsets Split Supply for Analog Circuitry Split Supply from 3 Ni Cells or 1 Li+ Cell VCO and GaAsFET Supplies

DataSheet

Parametrics

Quality and Environmental Data

• MAX865.pdf

Related Products

• MAX864：Dual-Output Charge Pump with Shutdown

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