MAX868 Regulated, Adjustable -2x Inverting Charge Pump

The MAX868 inverting Charge Pump provides a low-cost and compact means of generating a regulated negative voltage up to -2 x VIN from a positive input voltage between 1.8V and 5.5V. It uses a pulse-frequency-modulation (PFM) control scheme to generate the regulated negative output voltage. PFM operation is obtained by gating the internal 450kHz Oscillator on and off as needed to maintain output voltage regulation. This unique on-demand switching scheme gives the MAX868 excellent light-load efficiency without degrading its full-load operation (up to 30mA), permitting smaller capacitors to take advantage of the oscillator's high switching frequency.
The MAX868 requires no inductors; only four capacitors are required to build a complete DC-DC Converter Output voltage regulation is achieved by adding just two resistors. The MAX868 comes in a 10-pin MAX package, which is only 1.11mm high and occupies just half the board area of a standard 8-pin SO.
By Maxim Integrated Products
MAX868 's PackagesMAX868 's pdf datasheet

MAX868 Pinout, Pinouts
MAX868 pinout,Pin out
This is one package pinout of MAX868,If you need more pinouts please download MAX868's pdf datasheet.

MAX868 Application circuits
MAX868 circuits
This is one application circuit of MAX868,If you need more circuits,please download MAX868's pdf datasheet.

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