The ISL85033 is a wide input range, dual standard buck converter that can be configured to provide a negative output voltage. The ISL85033-12VEVAL3Z evaluation board is used to demonstrate the negative configuration. In this configuration, VIN can range from 4.5V to (28V - VOUT).
The ISL85033 is offered in a 4mm x 4mm 28 Ld TQFN package with a 1mm maximum height. The complete converter occupies 6.25cm2 area.