MAX1686 Datasheet - Maxim

MAX1686, Charge Pumps

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 D.
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 Disc.

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Datasheet Details

Part number:

MAX1686

Manufacturer:

Maxim

File Size:

149.87 KB

Description:

Charge Pumps

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 (MA

Applications

* such as GSM cell phones and wireless LANs, where the RF power amplifiers require short, high current bursts. The MAX1687/MAX1688 reduce battery surge current by slowly charging a reservoir capacitor, which supplies the necessary peak energy for the load current burst. As a result, the peak battery c

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