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19-1219; Rev 1; 6/97
ANUAL N KIT M IO T A U EVAL BLE AVAILA
28V, Low-Power, High-Voltage, Boost or Inverting DC-DC Converter
____________________________Features
o Internal, 500mA, 28V N-Channel Switch (No External FET Required) o Generates Positive or Negative Output Voltages o 80µA Supply Current o 1µA Max Shutdown Current o Up to 300kHz Switching Frequency o Adjustable Current Limit Allows Use of Small, Inexpensive Inductors o 8-Pin SO Package
_______________General Description
The MAX629 low-power DC-DC converter features an internal N-channel MOSFET switch and programmable current limiting. It is designed to supply positive or negative bias voltages up to ±28V from input voltages in the 0.8V to VOUT range, and can be configured for boost, flyback, and SEPIC topologies.