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)： 21/28頁
文件大小： 359K
代理商： LTC3634EUFD#PBF
LTC3634
28
3634f
LinearTechnology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com
LINEAR TECHNOLOGY CORPORATION 2011
LT 0611 PRINTED IN USA
relaTeD parTs
Typical applicaTion
PART NUMBER DESCRIPTION
COMMENTS
LTC3633
15V, Dual 3A (IOUT), 4MHz, Synchronous Step-Down
DC/DC Converter
95% Efficiency, VIN(MIN) = 3.6V, VIN(MAX) = 15V, VOUT(MIN) = 0.6V,
IQ = 500A, ISD <15A, 4mm × 5mm QFN-28, TSSOP-28E Package
LTC3605
15V, 5A (IOUT), 4MHz, Synchronous Step-Down
DC/DC Converter
95% Efficiency, VIN(MIN) = 4V, VIN(MAX) = 15V, VOUT(MIN) = 0.6V,
IQ = 2mA, ISD <15A, 4mm × 4mm QFN-24 Package
LTC3604
15V, 2.5A (IOUT), 4MHz, Synchronous Step-Down
DC/DC Converter
95% Efficiency, VIN(MIN) = 3.6V, VIN(MAX) = 15V, VOUT(MIN) = 0.6V,
IQ = 300A, ISD <15A, 4mm × 4mm QFN-20, MSOP-16E Package
LTC3603
15V, 2.5A (IOUT), 3MHz, Synchronous Step-Down
DC/DC Converter
95% Efficiency, VIN(MIN) = 4.5V, VIN(MAX) = 15V, VOUT(MIN) = 0.6V,
IQ = 75A, ISD <1A, 4mm × 4mm QFN-20 MSOP-16E Package
LTC3601
15V, 1.5A (IOUT), 4MHz, Synchronous Step-Down
DC/DC Converter
95% Efficiency, VIN(MIN) = 4V, VIN(MAX) = 15V, VOUT(MIN) = 0.6V,
IQ = 300A, ISD <15A, 4mm × 4mm QFN-20, MSOP-16E Package
LTC3413
5.5V, 3A (IOUT Sink/Source), 2MHz, Monolithic Synchronous
Regulator for DDR/QDR Memory Termination
90% Efficiency, VIN(MIN) = 2.25V, VIN(MAX) = 5.5V, VOUT(MIN)= VREF/2,
IQ = 280A, ISD <1A, TSSOP16E Package
LTC3612
5.5V, 3A, 4MHz, Synchronous Step-Down DC/DC Converter
95% Efficiency, VIN(MIN) = 2.25V, VIN(MAX) = 5.5V, VOUT(MIN) = 0.6V,
IQ = 75A, ISD <1A, 3mm × 4mm QFN-20 TSSOP-20E Package
LTC3614
5.5V, 4A, 4MHz, Synchronous Step-Down DC/DC Converter
95% Efficiency, VIN(MIN) = 2.25V, VIN(MAX) = 5.5V, VOUT(MIN) = 0.6V,
IQ = 75A, ISD <1A, 3mm × 5mm QFN-24 Package
LTC3616
5.5V, 6A, 4MHz, Synchronous Step-Down DC/DC Converter
95% Efficiency, VIN(MIN) = 2.25V, VIN(MAX) = 5.5V, VOUT(MIN) = 0.6V,
IQ = 75A, ISD <1A, 3mm × 5mm QFN-24 Package
LTC3615
5.5V, Dual 3A, 4MHz, Synchronous Step-Down
DC/DC Converter
95% Efficiency, VIN(MIN) = 2.25V, VIN(MAX) = 5.5V, VOUT(MIN) = 0.6V,
IQ = 130A, ISD <1A, 4mm × 4mm QFN-24 TSSOP-24E Package
Figure 12a. VTT Powered from VDDQ
Figure 12b. 2-Phase VTT Termination Using Two Input Supplies
RUN1
RUN2
RT
INTVCC
PHMODE
VFB1
VDDQIN
ITH1
ITH2
LTC3634
3634 TA02b
L1
1.5H
L2
1.5H
0.1F
PGND
SGND
BOOST1
SW1
BOOST2
SW2
VFB2
VON2
VON1
VTTR
MODE/SYNC
VIN2
12V
VIN1
VTT
VDDQ/2
AT ±6A
5V
COUT2
100F
×4
VREF
VDDQ/2
AT ±10mA
10k
680pF
C2
2.2F
C1
22F
C3
47F
0.01F
10pF
R1
324k
VDDQ
SUPPLY
RUN1
RUN2
RT
INTVCC
PHMODE
MODE/SYNC
ITH1
ITH2
LTC3634
3634 TA02a
L1
1H
R2
18.2k
R1
12.1k
0.1F
PGND
SGND
BOOST1
SW1
VON1
VDDQIN
VFB1
BOOST2
SW2
VFB2
VON2
VTTR
VIN2
VIN
3.6V TO
15V
VIN1
L2
0.47H
RCOMP2
18k
COUT1
100F
×2
VDDQ
1.5V
COUT2
100F
×4
C3
0.01F
C6
22F
VTT
0.75V
VREF
CCOMP2
910pF
RCOMP1
26.4k
CCOMP1
560pF
C2
2.2F
C1
22F
C4
10pF
C5
10pF
RT
162k
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