參數(shù)資料
型號: LTC3546IUFD#TR
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: DUAL SWITCHING CONTROLLER, 4000 kHz SWITCHING FREQ-MAX, PQCC28
封裝: 4 X 5 MM, PLASTIC, MO-220, QFN-28
文件頁數(shù): 17/28頁
文件大?。?/td> 356K
代理商: LTC3546IUFD#TR
LTC3546
24
3546fb
APPLICATIONS INFORMATION
Figure 7. Typical Schematic for 2A/2A Regulator
3546 F07
LTC3546
PGOOD1
SW1
RUN1
VFB1
BMC1
TRACK/SS1
FREQ
RITH1
13k
ITH1
PGOOD2
SW2A
RUN2
VFB2
BMC2
TRACK/SS2
PHASE
ITH2
CITH1
1000pF
RITH2
13k
CITH2
1000pF
R6
100k
R5
100k
COUT1
47μF
RFREQ
143k
VIN1
VIN
VOUT1
1.2V, 2A
VIN
VCCA VCCD VIN2
PGND2
EXPOSED PAD
GNDA
PGND1
R2
30.1k
R1
30.1k
R4
30.1k
R3
60.4k
CFF1
100pF
L1
0.56μH
COUT2
47μF
VOUT2
1.8V, 2A
VIN
2.25V TO 5.5V
CFF2
100pF
L2
0.56μH
SYNC/MODE
SW2B
SW1D
CIN
22μF
Figure 8. A 2.25MHz Fixed Frequency 2A/2A Regulator
3546 F08
LTC3546
PGOOD2
SYNC/MODE
VFB2
FREQ
ITH2
TRACK/SS2
VCC
GND
BMC2
BMC1
RUN2
SW2A
SW2B
PGOOD1
VFB1
PHASE
ITH1
TRACK/SS1
RUN1
SW1
SW1D
C5
22μF, X5R
C1
22μF, X5R
2
fSW = 2.25MHz
C2
22μF, X5R
2
C4
470pF
C9
0.1μF
C6
10pF
L2
1.0μH
L1
1.0μH
R7
100k
R8
100k
R1
316k
R3
100k
R6
5.1k
R2
200k
R4
100k
R5
8.2k
C7
33pF
C8
0.1μF
C3
330pF
R9
90.9k
5V VIN
VOUT2
2.5V/2A
VOUT1
1.8V/2A
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