a
FEATURES Operates From 2.
0 V to 30 V Input
Voltages Only 110 A Supply Current (Typical) Step-Up or Step-Down Mode Operation Very Few External Components Required Low Battery Detector On-Chip User-Adjustable Current Limit Internal 1 A Power Switch Fixed or Adjustable Output
Voltage Versions 8-Pin DIP or SO-8 Package APPLICATIONS Notebook and Palmtop Computers Cellular Telephones Flash Memory Vpp Generators 3 V to 5 V, 5 V to 12 V Converters 9 V to 5 V, 12 V to 5 V Converters Portable Instruments LCD Bias Generators
VIN
Micropower DC-DC Converter ADP1173
FUNCTIONAL BLOCK DIAGRAMS
SET
ADP1173
A2 VIN GAIN BLOCK/ ERROR AMP 1.
245V REFERENCE AO ILIM SW1 A1 OSCILLATOR DRIVER SW2
COMPARATOR GND...