Salah,
The TPS51103 ( http://www.ti.com/product/tps51103 ) can provide a negative Vout.
You will find all of TI’s LDO controllers (regulators that can drive external FET’s) at the link below:
http://www.ti.com/lsds/ti/power-management/ldo-controller…
Other Parts Discussed in Thread: TPS51103 , LM3940 Hi all
Can anyone help me find Dual voltage regulator?
input :24dc
outputs : 5v/3.3v fixed output (floating 5v)
iout : up to 1A.
thanks in advance
Frogger