dcdc技术不可多得的技术资料
图2. 隔离型PFM反激DC-DC转换器原理图
表2. PFM反激型DC-DC转换器的材料清单
Reference Values C2
470µF 25V
Description
CEL 470µF, 25V, +105°C, 10mm x 10mm SMD
CS 180p C COG, 50V 0603/1
Manufacturer
UUD1E471MNL1GS (Nichicon®) GRM39 COG 181 J 50 PT (Murata®)
GRM39X7R104K16PT (Murata)
C10 C1, C4, C7 C5, C8
180pF
100nF 16V 100µF 16V 0.1Ω 100pF
#CSMD 100nF K X7R 16V 0603/1
CEL TAN 100µF ±20% E 16V 0.1Ω T495D107K016ATE100 (Kemet®) GRM39 COG 101 J 50 PT (Murata)
GRM39 COG 271 J 50 PT (Murata)
GRM39 COG 151 J 50 PT (Mutata)
MBRS230LT3G (ON Semiconductor®)
MBRA160T3G (ON Semiconductor)
SRR0604-220ML (Bourns®)
C6 CS 100p C COG 50V 0603/1
C3 1nF 50V #CS 1n M X7R 50V 0603/1
C9 150pF MBRS230LT3G
MBRA160T3G
22µH 1.2A 0.19Ω IRFR120
CS 150p C COG 50V 0603/1
D1 D Schottky 2A, 30V SMB
D2 D Schottky 1A, 60V SMA
L1 L SMD 22µH, 1.2A, 0.19Ω
Q IRFR120 DPAK 8.4A, 100V, 0.270Ω, NMOS
RS 680R J 1/16W 0603/1
M1 IRFR120 (Int.Rectifier.)
RK73B 1J T TD 680 J (KOA Speer®)
R1, R6 680Ω