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SGM3209 - Charge Pump DC/DC Converter

General Description

The SGM3209 is a charge pump voltage converter which is used to generate a negative supply from a positive input.

The 3V to 18V input voltage can be converted into a corresponding -3V to -18V output supply.

The SGM3209 is also capable of delivering up to 100mA of output current.

Key Features

  • Input Voltage Range: 3V to 18V.
  • Output Current: 100mA.
  • Pull-Low Resistor on EN Pin: 600kΩ.
  • Programmable Oscillator Frequency: 120kHz to 1.25MHz.
  • No External Diodes Required.
  • Low Output Impedance: 15Ω (TYP) at IOUT = 20mA.
  • CMOS Construction.
  • -40℃ to +85℃ Operating Temperature Range.
  • Available in Green TDFN-2×2-8L and SOIC-8 Packages.

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Datasheet Details

Part number SGM3209
Manufacturer SG Micro
File Size 918.77 KB
Description Charge Pump DC/DC Converter
Datasheet download datasheet SGM3209 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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SGM3209 High Voltage, Charge Pump DC/DC Converter GENERAL DESCRIPTION The SGM3209 is a charge pump voltage converter which is used to generate a negative supply from a positive input. The 3V to 18V input voltage can be converted into a corresponding -3V to -18V output supply. The SGM3209 is also capable of delivering up to 100mA of output current. The switching frequency is resistor programmable from 120kHz to 1.25MHz. The device also has the advantage of using a combination of few external components to eliminate the inductors and their associated cost, size and EMI. The SGM3209 enters into shutdown status by external enable control signal to reduce system power dissipation. The device is used for design requirements with higher output current and/or lower input/output voltage drop.