參數(shù)資料
型號： LTC3634EUFD#PBF
廠商： LINEAR TECHNOLOGY CORP
元件分類： 穩(wěn)壓器
英文描述： 5.5 A DUAL SWITCHING CONTROLLER, 4600 kHz SWITCHING FREQ-MAX, PQCC28
封裝： 4 X 5 MM, LEAD FREE, PLASTIC, MO-220, QFN-28
文件頁數(shù)： 17/28頁
文件大?。?/td> 359K
代理商： LTC3634EUFD#PBF
LTC3634
24
3634f
Figure 9. Design Example Circuit
Lastly,wewillchoosecompensationcomponents. Choos-
ing the crossover frequency fC = 50kHz:
RCOMP1 =
2
π 50kHz 200F
1m
1 71
1.8V
0.6V
= 27k
RCOMP2 =
2
π 50kHz 400F
1m
1 71
0.9V
= 18k
applicaTions inForMaTion
Choosing the zero frequency to be 10kHz yields CCOMP1 =
589pF and CCOMP2 = 884pF. The closest standard values
for the compensation components are 26.7k, 18k, 560pF
and 910pF, respectively.
The final circuit is shown in Figure 9.
RUN1
RUN2
RT
INTVCC
PHMODE
MODE/SYNC
ITH1
ITH2
LTC3634
3634 F09
L1
1.5H
0.1F
0.01F
0.1F
R1
12.1k
R2
24.3k
PGND
SGND
BOOST1
SW1
VON1
VDDQIN
VFB1
BOOST2
SW2
VFB2
VON2
VTTR
VIN1
VIN
3.6V TO 15V
VIN2
L2
0.82H
R3
324k
COUT2
100F
×4
COUT1
100F
×2
VDDQ
1.8V
VTT
0.9V
VREF
0.9V
C5
10pF
RCOMP1
26.7k
CCOMP1
560pF
RCOMP2
18k
CCOMP2
910pF
C2
2.2F
C1
47F
×2
C4
10pF
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