Request replacements of LTC7820/LTC7821

Question

Hello, 
 
 My cutomer use LTC7820/LTC7821 in her system. 
 But she says that these devices are needed too many additional parts (FLy/Mid capacitors,), so she is searching similar device with lower additional parts. 
 
 Would you suggest your recommended parts for replacing LTC7820 and LTC7821? 
 
 1) LTC7821 : Vin is 48V , Vout is 12V 20A ( She can review from 10A to over 20A.) 
 2) LTC7820: Vin is 48V, Vout is 24V 10A. 
 
 Please let me know your suggested devices. 
 
 Regards, 
 Se-woong

ADIApproved · Accepted Answer

Hi Se-woong, 
 Looking at the charge pump selection table, it looks like there are no other high current charge pumps aside from LTC7820 and LTC7821. 
 You may also take a look at LTC7803. For other parts, you may search using this table, Selection Table for Step-Down (Buck) Regulators | Parametric Search | Analog Devices, or look in LTpowerCAD.)

Electronic Design Services - PartnerZone

Products Mentioned

Request replacements of LTC7820/LTC7821