DESCRIPTION

SiP12503 is a boost converter IC with adjustable output voltage for single or dual cell NiMH or Alkaline battery pack. Featuring with an internal low resistance power MOSFET, it is capable of starting up with a low battery voltage of 0.85 V.

FEATURES

• Voltage mode control with internal frequency compensation

• 0.85 V to 5.0 V input voltage range

• Adjustable output voltage range from 2.0 V to 5.0 V

• Low startup voltage: 0.65 V

• PWM control with 300 kHz fixed switching frequency

• PFM control for light load

• Powered from the output voltage supply

• Integrated UVLO and soft-start

• Logic controlled shutdown (< 1 µA)

• 85 typical efficiency

• Internal power MOS switch: 0.2 Ω at 3.3 V output

• Antiringing switch to minimize EMI

• Shutdown input

• Thermal shutdown

• Minimum external components

• PowerPAK® MLP33-6 package (DFN-6, 3 x 3)

• Over voltage protection

APPLICATIONS

• Portable applications

• Battery-powered equipment

• Handheld devices

• Digital cameras

• Wireless handsets

• LCD and OLED bias