The LP6270 is designed to supply positive/negative driven applications.The device uses a single inductor scheme to provide both output currents. The integrated synchronous Boost converter provides a regulated voltage for a LDO and a charge pump. The LDO provides a regulated and programmable positive bias VOP and the charge pump provides a regulated and programmable negative bias VON. The device offers low noise, small solution size and high efficiency. The other feature includes under-voltage lockout (UVLO)internal soft-start, Boost cycle-by-cycle current limit and output over load and short circuit protection as well as thermal shutdown. The LP6270 is available in a space saving WLCSP 15-ball (0.4mm pitch) package.
◆ Input voltage range: 2.7V to 5.5V ◆ Programmable output voltages - VOP output voltage: 4V to 6.0V with 0.1V per step - VON output voltage: -6.0V to -4V with 0.1V per step ◆ VOP output current is up to 150mA ◆ VON output current is up to 150mA ◆ 85% efficiency at VIN=4.4V, VOP/VON = +/-5.5VIOP=ION=150mA ◆ I2C Interface - Flexible Output Voltage Programming - Programmable Active Output Discharge ◆ Protections - Input under-voltage lockout (UVLO) - Boost cycle-by-cycle current-limit protection - Output current limit and short circuit protection - Thermal shutdown protection ◆ Packaging - WLCSP 15 balls (1.19mm x 1.96mm) - RoHS Compliant and Halogen Free - 100% Lead (Pb) Free
