參數(shù)資料
型號: LTC3618EFE#TRPBF
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: 8 A DUAL SWITCHING CONTROLLER, 2700 kHz SWITCHING FREQ-MAX, PDSO24
封裝: 4.40 MM, LEAD FREE, PLASTIC, TSSOP-24
文件頁數(shù): 17/24頁
文件大?。?/td> 603K
代理商: LTC3618EFE#TRPBF
LTC3618
24
3618f
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 FAX: (408) 434-0507 www.linear.com
LINEAR TECHNOLOGY CORPORATION 2011
LT 0711 PRINTED IN USA
RELATED PARTS
TYPICAL APPLICATION
PART NUMBER DESCRIPTION
COMMENTS
LTC3546
5.5V, Dual 3A/1A, 4MHz, Synchronous Step-Down DC/
DC Converter
95% Efciency, VIN: 2.25V to 5.5V, VOUT(MIN) = 0.6V, IQ = 160μA, ISD < 1μA,
4mm
× 5mm QFN-28 Package
LTC3417A-2
5.5V, Dual 1.5A/1A, 4MHz, Synchronous Step-Down
DC/DC Converter
95% Efciency, VIN: 2.25V to 5.5V, VOUT(MIN) = 0.8V, IQ = 125μA, ISD < 1μA,
TSSOP-16E and 3mm
× 5mm DFN-16 Packages
LTC3612
5.5V, 3A, 4MHz, Synchronous Step-Down DC/DC
Converter
95% Efciency, VIN: 2.25V to 5.5V, VOUT(MIN) = 0.6V, IQ = 75μA, ISD < 1μA,
3mm
× 4mm QFN-20 and TSSOP-20E Packages
LTC3614
5.5V, 4A, 4MHz, Synchronous Step-Down DC/DC
Converter
95% Efciency, VIN: 2.25V to 5.5V, VOUT(MIN) = 0.6V, IQ = 75μA, ISD < 1μA,
3mm
× 4mm QFN-20 and TSSOP-20E Packages
LTC3616
5.5V, 6A, 4MHz, Synchronous Step-Down DC/DC
Converter
95% Efciency, VIN: 2.25V to 5.5V, VOUT(MIN) = 0.6V, IQ = 75μA, ISD < 1μA,
3mm
× 5mm QFN-24 Package
LTC3617
±6A Monolithic Synchronous Buck for DDR
Termination
Over 90% Efciency, VIN: 2.25V to 5.5V, 5k VOUT(MIN) = 0.5V, 3mm × 5mm
QFN-24 Package
External Compensation, 500kHz Sync 180° Phasing
Efciency vs Output Current of VDDQ
Efciency vs Output Current of VTT
LOAD CURRENT (mA)
30
EFFICIENCY
(%)
POWER
LOSS
(W)
90
100
20
10
80
50
70
60
40
10
3618 TA03b
0
0.6
1.8
2.0
0.4
0.2
1.6
1.0
1.4
1.2
0.8
0
0.1
1
0.001
0.01
VIN = 2.5V
VIN = 3.3V
VIN = 5V
LOAD CURRENT (mA)
30
EFFICIENCY
(%)
POWER
LOSS
(W)
90
100
20
10
80
50
70
60
40
10
3618 TA03c
0
0.6
1.8
2.0
0.4
0.2
1.6
1.0
1.4
1.2
0.8
0
0.1
1
0.001
0.01
VIN = 2.5V
VIN = 3.3V
VIN = 5V
(2
×) SW1
FB1
LTC3618
3618 TA03a
SGND
RUN1
TRACK/SS1
RT
750k
ITH1
PHASE
RUN2
PGOOD2
ITH2
PGOOD1
RT
VTTR
VREF
MODE/SYNC
VIN
2.5V~5V
PGOOD
SVIN
(2
×) PVIN1 (2×) PVIN2
VDDQIN
2.2μH
47μF
VDDQ
1.5V/±3A
10pF
R1
845k
R2
562k
RC2
6.49k
CC2
1000pF
RC1
10k
CC1
1000pF
(2
×) SW2
FB2
2.2μH
47μF
×2
VTT
0.75V/±3A
10pF
100k
PGND
1μF
47μF
0.01μF
500kHz
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