SC1517-5

• Ultra low power: I_CC = 10A typ
• Soft start / Short circuit Current limit
• Thermal protected
• 5V+ 4% Regulated output
• V_IN Range: 2.7V to 5V
• Output current: 10mA (V_IN > 2.7V) 20mA (V_IN > 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)

• Cellular telephones
• Battery-operated equipment
• Local power supplies
• Handheld instruments
• PCMCIA supplies

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 10A with no load) prolongs battery usage time. The small device footprint and the low external parts count (one 0.1F flying capacitor and two small bypass capacitors at V_IN and V_OUT) make the part ideally suited for compact circuit design.

The SC1517-5 charge pump can be used for applications that require up to 20mA (3V < V_IN < 5V) of output current, while providing a regulated 5V output voltage. During short circuit a current limit circuitry provides protection, while the thermal shutdown capability cycles V_OUT to prevent device failure. The SC1517-5 is available in a 5 lead SOT-23 package.