These look like really neat little gizmos for building battery supplies; they even come in a TO-92 package for easy breadboarding. I can’t seem to find them from the normal suppliers (Mouser, Digikey, Jameco), and Holtek’s on-line ordering system is kinda crap 
It would be awesome if SF would stock these babys.
HT7727A - 2.7v
HT7730A - 3.0v
HT7733A - 3.3v
HT7750A - 5.0v
They can source up to 200ma of current.
they don’t list pricing on their website (you have to give them your CC# first and then they will call you with pricing 
Data sheet here: http://www.holtek.com.tw/pdf/consumer/77xxav120.pdf
– pryankster
Pryankster:
These look like really neat little gizmos for building battery supplies; they even come in a TO-92 package for easy breadboarding. I can’t seem to find them from the normal suppliers (Mouser, Digikey, Jameco), and Holtek’s on-line ordering system is kinda crap It would be awesome if SF would stock these babys.
HT7727A - 2.7v
HT7730A - 3.0v
HT7733A - 3.3v
HT7750A - 5.0v
They can source up to 200ma of current.
they don’t list pricing on their website (you have to give them your CC# first and then they will call you with pricing
Data sheet here: http://www.holtek.com.tw/pdf/consumer/77xxav120.pdf
– pryankster
Is there something that sets them apart from other DC/DC converters? They look fairly standard to me… Seems like a much more readily available Linear part might work just as well for you.