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MAX1686 - Charge Pumps

Key Features

  • o Low 450mA Peak Battery Current Provides 2A, 5V GSM Burst o 90% Efficiency o Internal Power MOSFETs and Current-Sense Resistor o Output Disconnects from Input During Shutdown o 3µA Shutdown Current o Precise Voltage-Controlled Current Limit (MAX1687) o Adaptive Constant-Recharge-Time Capability (MAX1688) o 1.25V to 6V Adjustable Output o 2.7V to 6V Input Range (1 Li-Ion cell or 3 NiMH cells) o Switching Frequency Can Exceed 1MHz o Standby Mode Disables DC-DC During Transmission Burst o Low Inru.

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Other Datasheets by Maxim Integrated (now Analog Devices)

Part Number Description
MAX1680 Switched-Capacitor Voltage Converters
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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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19-1426; Rev 0; 2/99 NUAL KIT MA ATION EET H S A EVALU T WS DA FOLLO Step-Up DC-DC Converters with Precise, Adaptive Current Limit for GSM General Description Features o Low 450mA Peak Battery Current Provides 2A, 5V GSM Burst o 90% Efficiency o Internal Power MOSFETs and Current-Sense Resistor o Output Disconnects from Input During Shutdown o 3µA Shutdown Current o Precise Voltage-Controlled Current Limit (MAX1687) o Adaptive Constant-Recharge-Time Capability (MAX1688) o 1.25V to 6V Adjustable Output o 2.