19-1462; Rev 0; 6/99
NUAL KIT MA ATION U EET L H A S V A E T WS DA O L L O F
28V, PWM, Step-Up DC-DC Converter
Features
o Adjustable Output
Voltage Up to +28V o Up to 93% Efficiency o Wide Input
Voltage Range (+3V to +28V) o Up to 500mA Output Current at +12V o 500µA Quiescent Supply Current o 3µA Shutdown Current o 250kHz Switching Frequency o Small 1W 16-Pin QSOP Package
General Description
The MAX618
CMOS, PWM, step-up DC-DC converter generates output
voltages up to 28V and accepts inputs from +3V to +28V.
An internal 2A, 0.
3Ω switch eliminates the need for external power
MOSFETs while supplying output currents up to 500mA or more.
A PWM control scheme combined with Idle Mode™ operatio...