The MAX865EUA 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 MAX865EUA 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.
Feature
- 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)
Applications
- 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