19-1321; Rev 1; 2/98
KIT ATION EVALU LE B A IL A AV
Miniature, Low-
Voltage, Precision Step-Down Controller
General Description ____________________________Features
o ±2% DC Accuracy o 0.
1% (typ) DC Load Regulation o Adjustable Switching Frequency to 350kHz o Idle Mode™ Pulse-Skipping Operation o 1.
10V to 5.
5V Adjustable Output
Voltage o 3.
15V Minimum IC Supply
Voltage (at VCC pin) o Internal Digital Soft-Start o 1.
1V ±2% Reference Output o 1µA Total Shutdown Current o Output Over
voltage Crowbar Protection o Output Under
voltage Shutdown (foldback) o Tiny 16-Pin QSOP Package
MAX1637
The MAX1637 synchronous, buck, switch-mode powersupply controller generates the CPU supply
voltage in batter...