Datasheet4U Logo Datasheet4U.com

MAX768 - Low-Noise / Dual-Output / Regulated Charge Pump for GaAsFET / LCD / and VCO Supplies

Description

The MAX768 low-noise, dual-output, regulated charge pump provides a negative output for biasing GaAsFET power amplifiers, and a positive output for powering voltage-controlled oscillators (VCOs) in wireless handsets.

The outputs can also be used to power LCDs.

Output ripple is less than 2mVp-p.

Features

  • Dual Mode™ operation: the output voltage is preset to +5V and -5V, or can be adjusted by adding external resistor dividers. Other features include independent shutdowns and a logic output that signals when the negative voltage has risen to within 10% of its regulation setpoint (to protect the power amplifier GaAsFET). The MAX768 is available in a space-saving, 16-pin QSOP, which is the same size as a standard 8-pin SO. ____________________________Features o Dual Positive/Negative Regulated Outp.

📥 Download Datasheet

Datasheet preview – MAX768

Datasheet Details

Part number MAX768
Manufacturer Maxim
File Size 101.89 KB
Description Low-Noise / Dual-Output / Regulated Charge Pump for GaAsFET / LCD / and VCO Supplies
Datasheet download datasheet MAX768 Datasheet
Additional preview pages of the MAX768 datasheet.

📁 Similar Datasheet

  • MAX7645 - CMOS 12-Bit Buffered Multiplying DAC (Maxim Integrated)
  • MAX7000A - Programmable Logic Device (Altera Corporation)
  • MAX7030 - ASK Transceiver (Maxim Integrated Products)
  • MAX7031 - ASK Transceiver (Maxim Integrated Products)
  • MAX7032 - ASK/FSK Transceiver (Maxim Integrated Products)
  • MAX7033 - 315MHz/433MHz ASK Superheterodyne Receiver (Maxim Integrated Products)
  • MAX7034 - 315MHz/434MHz ASK Superheterodyne Receiver (Maxim Integrated Products)
  • MAX7036 - 300MHz To 450MHz ASK Receiver (Maxim Integrated Products)
  • MAX7037 - RF ISM Transceiver (Maxim Integrated)
  • MAX7042 - 308MHz/315MHz/418MHz/433.92MHz Low-Power FSK Superheterodyne Receiver (Maxim Integrated Products)
Other Datasheets by Maxim
  • MAX761 - 12V/15V or Adjustable / High-Efficiency / Low IQ / Step-Up DC-DC Converters
  • MAX762 - 12V/15V or Adjustable / High-Efficiency / Low IQ / Step-Up DC-DC Converters
  • MAX7624 - CMOS 8-Bit Buffered Multiplying DACs
  • MAX7628 - CMOS Dual 8-Bit Buffered Multiplying DACs
  • MAX763A - Current-Mode PWM DC-DC Converters
  • MAX764 - -5V/-12V/-15V or Adjustable / High-Efficiency / Low IQ DC-DC Inverters
  • MAX765 - -5V/-12V/-15V or Adjustable / High-Efficiency / Low IQ DC-DC Inverters
  • MAX7651 - Flash Programmable 12-Bit Integrated Data-Acquisition Systems

Full PDF Text Transcription

Click to expand full text
19-1174; Rev 0; 12/96 Low-Noise, Dual-Output, Regulated Charge Pump for GaAsFET, LCD, and VCO Supplies _______________General Description The MAX768 low-noise, dual-output, regulated charge pump provides a negative output for biasing GaAsFET power amplifiers, and a positive output for powering voltage-controlled oscillators (VCOs) in wireless handsets. The outputs can also be used to power LCDs. Output ripple is less than 2mVp-p. The MAX768 is intended for use in low-voltage systems where a simple charge-pump inverter is inadequate, or where the VCO needs more range to improve its signal-to-noise ratio. The input range is 2.5V to 5.5V, enabling direct power from 1Li+ and 3-cell NiMH/NiCd batteries. The MAX768 includes a voltage-doubler charge pump, followed by an inverting charge pump.
Published: |