Step up voltage IC 24V to 100V

[icemetal]

does anyone know of any step up IC that can go up to 100V
I found this one but it can only go up to 40V
https://www.digikey.com/product-detail/en/AS1343A-BTDT-10-1K/AS1343A-BTDT-10-1KCT-ND/2469734

I'm trying to get an output of 100VDC @ 1mA

 

[keith1200rs]

Many switching regulator ICs could be used with an external transistor such as LM3478.

Keith

- - - Updated - - -

Many switching regulator ICs could be used with an external transistor such as LM3478.

Keith