Rainbow Electronics MAX1865 - Manual (Page 24)

MAX1864/MAX1865
xDSL/Cable Modem Triple/Quintuple Output
Power Supplies
24 ______________________________________________________________________________________
SUPPLIER PHONE FAX INTERNET
INDUCTORS AND TRANSFORMERS
Coilcraft 847-639-6400 847-639-1469 http://www.coilcraft.com
Coiltronics 561-241-7876 561-241-9339 http://www.coiltronics.com
Sumida USA 847-956-0666 847-956-0702 http://www.sumida.com
Toko 847-297-0070 847-699-1194 http://www.toko.co.jp
CAPACITORS
AVX 803-946-0690 803-626-3123 http://www.avxcorp.com
Kemet 408-986-0424 408-986-1442 http://www.kemet.com
Panasonic 847-468-5624 847-468-5815 http://www.panasonic.com
Sanyo 619-661-6835 619-661-1055 http://www.sanyo.com
Taiyo Yuden 408-573-4150 408-573-4159 http://www.t-yuden.com
DIODES
Central Semiconductor 516-435-1110 516-435-1824 http://www.centralsemi.com
International 310-322-3331 310-322-3332 http://www.irf.com
Nihon 847-843-7500 847-843-2798 http://www.niec.co.jp
On Semiconductor 602-303-5454 602-994-6430 http://www.onsemi.com
Zetex 516-543-7100 516-864-7630 http://www.zetex.com
Table 1. Component Suppliers
C BYP
V NEG
V SUP
Q PASS Q CASCODE
Q CASCODE
C POS
R BE
R DROP
C DROP
R DROP
C DROP
R1
R2
B_
a) POSITIVE OUTPUT VOLTAGE WITH CASCODED BASE DRIVE
b) NEGATIVE OUTPUT VOLTAGE (MAX1865 ONLY)
WITH CASCODED BASE DRIVE
FB_
MAX1864
MAX1865
V BIAS
V POS
C BYP
V REF
V SUP
Q PASS
C
NEG
R BE
R4
R3
FB5
B5
MAX1865
Figure 8. High-Voltage Linear Regulation