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19-3262; Rev 0; 4/04
www.DataSheet4U.com
500kHz Multi-Output Power-Supply Controllers with High Impedance in Shutdown MAX8741/MAX8742
General Description Features
♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ 97% Efficiency 4.2V to 30V Input Range 2.5V to 5.5V Dual Adjustable Outputs Selectable 3.3V and 5V Fixed or Adjustable Outputs (Dual Mode™) 12V Linear Regulator Adjustable Secondary Feedback (MAX8741) 5V/50mA Linear-Regulator Output Precision 2.5V Reference Output Programmable Power-Up Sequencing Power-Good (RESET) Output Output Overvoltage Protection Output Undervoltage Shutdown 333kHz/500kHz Low-Noise, Fixed-Frequency Operation Low-Dropout, 98% Duty-Factor Operation 2.