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MAX1686H - Charge Pumps

Download the MAX1686H datasheet PDF. This datasheet also covers the MAX1686 variant, as both devices belong to the same charge pumps family and are provided as variant models within a single manufacturer datasheet.

General Description

The MAX1686 provides power for dual-voltage subscriber ID module (SIM) cards in portable applications such as GSM cellular phones.

Designed to reside in the portable unit (cellular phone handset), the 1MHz charge pump converts a 2.7V to 4.2V input to regulated 5V output.

Key Features

  • o 2.7V to 4.2V Input Range o 12mA min Charge-Pump.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (MAX1686_MaximIntegratedProducts.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

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Other Datasheets by Maxim Integrated (now Analog Devices)

Part Number Description
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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.

View original datasheet text
MAX1686/MAX1686H 19-1376; Rev 1; 12/98 3V to 5V Regulating Charge Pumps for SIM Cards General Description The MAX1686 provides power for dual-voltage subscriber ID module (SIM) cards in portable applications such as GSM cellular phones. Designed to reside in the portable unit (cellular phone handset), the 1MHz charge pump converts a 2.7V to 4.2V input to regulated 5V output. The MAX1686H has a nominal output voltage of 5.0V, while the MAX1686 is set to 4.75V to reduce SIMcard current drain. The charge pump has only 45µA quiescent supply current, which reduces to 3µA when a 3V-capable SIM card is being powered and the charge pump is disabled. An internal input/output shorting switch provides power for 3V SIM cards.