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MAX1673 - Regulated / 125mA-Output / Charge-Pump DC-DC Inverter

Description

The MAX1673 charge-pump inverter provides a lowcost, compact means of generating a regulated negative output from a positive input at up to 125mA.

It requires only three small capacitors, and only two resistors to set its output voltage.

The input range is 2V to 5.5V.

Features

  • a 1µA logic-controlled shutdown mode and is available in a standard 8-pin SO package. For a device that delivers about 10mA and fits in a smaller package, refer to the MAX868. ____________________________Features o Regulated Negative Output Voltage (up to -1 x VIN) o 125mA Output Current o 35µA Quiescent Supply Current (Skip-mode regulation) o 350kHz Fixed-Frequency, Low-Noise Output (Linear-mode regulation) o 2V to 5.5V Input Range o 1µA Logic-Controlled Shutdown MAX1673 _______________Order.

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Datasheet Details

Part number MAX1673
Manufacturer Maxim Integrated
File Size 81.22 KB
Description Regulated / 125mA-Output / Charge-Pump DC-DC Inverter
Datasheet download datasheet MAX1673 Datasheet
Additional preview pages of the MAX1673 datasheet.

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Full PDF Text Transcription

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19-1334; Rev 0; 1/98 Regulated, 125mA-Output, Charge-Pump DC-DC Inverter ________________General Description The MAX1673 charge-pump inverter provides a lowcost, compact means of generating a regulated negative output from a positive input at up to 125mA. It requires only three small capacitors, and only two resistors to set its output voltage. The input range is 2V to 5.5V. The regulated output can be set from 0V to -VIN in Skip regulation mode or -1.5V to -VIN in Linear (LIN) regulation mode. In Skip mode, the MAX1673 regulates by varying its switching frequency as a function of load current. This On-Demand™ switching gives the MAX1673 two advantages: very small capacitors and very low quiescent supply current.
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