DESCRIPTION

The SC1517-5 is pin compatible with LTC1517-5. This versatile charge pump produces a regulated 5V output from an input voltage ranging from 2.7V to 5V. The Extremely low operating current (typically 10µA with no load) prolongs battery usage time. The small device footprint and the low external parts count (one 0.1µF flying capacitor and two small bypass capacitors at VIN and VOUT) make the part ideally suited for compact circuit design.

FEATURES

• Ultra low power: ICC = 10µA typ

• Soft start / Short circuit Current limit

• Thermal protected

• 5V±4 Regulated output

• VIN Range: 2.7V to 5V

• Output current:

10mA (VIN > 2.7V)

20mA (VIN> 3V)

• No inductors

• Ultra small application circuit

• 800kHz switching frequency

• Surface mount packaging (5 pin SOT-23)

• All specifications rated over full temperature range (-40°C to 85°C)

APPLICATIONS

• Cellular telephones

• Battery-operated equipment

• Local power supplies

• Handheld instruments

• PCMCIA supplies