參數(shù)資料
型號(hào): LTC3833IUDC#PBF
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: SWITCHING CONTROLLER, 2000 kHz SWITCHING FREQ-MAX, PQCC20
封裝: 3 X 3 MM, LEAD FREE, PLASTIC, QFN-20
文件頁(yè)數(shù): 30/36頁(yè)
文件大小: 513K
代理商: LTC3833IUDC#PBF
LTC3833
36
3833f
LinearTechnology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 FAX: (408) 434-0507 www.linear.com
LINEAR TECHNOLOGY CORPORATION 2010
LT 1010 PRINTED IN USA
RELATED PARTS
TYPICAL APPLICATION
High Frequency 5.5V, 4A, 2MHz Step-Down Converter
RDIV1
100k
RDIV2
26.1k
VIN
VOUT
EXTVCC
VRNG
RUN
SENSE
SENSE+
RPGD
100k
INTVCC
RITH
20k
RT
18.2k
CSS
0.1F
CITH1
220pF
LTC3833
RFB2
165k
CFF
22pF
RFB1
20k
COUT1
22F
×2
L1
1.2H
RSENSE
10m
TG
CB 0.1F
CIN1
47F
35V
3833 TA05
VIN
7V TO 14V
VOUT
5.5V
4A
CIN2
4.7F
×2
CVCC
4.7F
DB
TRACK/SS
ITH
RT
MODE/PLLIN
PGOOD
SGND
BOOST
SW
INTVCC
BG
PGND
VOSNS+
VOSNS–
RVIN
2.2
RF1
10
RF2
10
CVIN
0.1F
MT
MB
CF
1000pF
CIN1: KEMET T521X476M035ATE070
DB: DIODES, INC. SDM10K45
L1: WURTH 744313120
MT, MB: INFINEON BSC093N04LS
+
PART NUMBER
DESCRIPTION
COMMENTS
LTC3878/LTC3879
No RSENSE Constant On-Time Synchronous Step-Down
DC/DC Controller
Very Fast Transient Response, tON(MIN) = 43ns, 4V ≤ VIN ≤ 38V,
0.6V ≤ VOUT ≤ 0.9VIN, SSOP-16, MSOP-16E, 3mm × 3mm QFN-16
LTC3775
High Frequency Synchronous Voltage Mode Step-Down
DC/DC Controller
Very Fast Transient Response, tON(MIN) = 30ns, 4V ≤ VIN ≤ 38V,
0.6V ≤ VOUT ≤ 0.8VIN, MSOP-16E, 3mm × 3mm QFN-16
LTC3854
Small Footprint Synchronous Step-Down DC/DC Controller Fixed 400kHz Operating Frequency 4.5V ≤ VIN ≤ 38V,
0.8V ≤ VOUT ≤ 5.25V, 2mm × 3mm QFN-12
LTC3851A/LTC3851A-1 No RSENSE Wide VIN Range Synchronous Step-Down
DC/DC Controller
Phase-Lockable Fixed Frequency 250kHz to 750kHz, 4V ≤ VIN ≤ 38V,
0.8V ≤ VOUT ≤ 5.25V, MSOP-16E, 3mm × 3mm QFN-16, SSOP-16
LTC3891
60V, Low IQ Synchronous Step-Down DC/DC Controller
PLL Capable Fixed Frequency 50kHz to 900kHz, 4V ≤ VIN ≤ 60V,
0.8V ≤ VOUT ≤ 24V, IQ = 50A
LTC3856
2-Phase, Single Output Synchronous Step-Down
DC/DC Controller with Diff Amp and DCR Temperature
Compensation
Phase-Lockable Fixed 250kHz to 770kHz Frequency,
4.5V ≤ VIN ≤ 38V, 0.6V ≤ VOUT ≤ 5.25V
LTC3829
3-Phase, Single Output Synchronous Step-Down
DC/DC Controller with Diff Amp and DCR Temperature
Compensation
Phase-Lockable Fixed 250kHz to 770kHz Frequency,
4.5V ≤ VIN ≤ 38V, 0.6V ≤ VOUT ≤ 5.25V
LTC3855
2-Phase, Dual Output Synchronous Step-Down DC/DC
Controller with Differential Remote Sense
Phase-Lockable Fixed Frequency 250kHz to 770kHz,
4.5V ≤ VIN ≤ 38V, 0.6V ≤ VOUT ≤ 12.5V
LTC3850/LTC3850-1
2-Phase, Dual Output Synchronous Step-Down DC/DC
Controllers, RSENSE or DCR Current Sensing
Phase-Lockable Fixed Frequency 250kHz to 780kHz, 4V ≤ VIN ≤ 30V,
0.8V ≤ VOUT ≤ 5.25V, 4mm × 4mm QFN-28, 4mm × 5mm QFN-28,
SSOP-28
LTC3853
Triple Output, Multiphase Synchronous Step-Down DC/DC
Controller, RSENSE or DCR Current Sensing
Phase-Lockable Fixed Frequency 250kHz to 750kHz, 4V ≤ VIN ≤ 24V,
VOUT Up to 13.5V
Efficiency
LOAD CURRENT (A)
20
50
40
30
90
80
70
60
3833 TA05b
EFFICIENCY
(%)
0.1
10
1
VIN = 12V
VOUT = 5.5V
FORCED
CONTINUOUS
MODE
PULSE-
SKIPPING
MODE
相關(guān)PDF資料
PDF描述
LTC3833EFE#TRPBF SWITCHING CONTROLLER, 2000 kHz SWITCHING FREQ-MAX, PDSO20
LTC3833EUDC#TRPBF SWITCHING CONTROLLER, 2000 kHz SWITCHING FREQ-MAX, PQCC20
LTC3833EUDC#PBF SWITCHING CONTROLLER, 2000 kHz SWITCHING FREQ-MAX, PQCC20
LTC3833IFE#PBF SWITCHING CONTROLLER, 2000 kHz SWITCHING FREQ-MAX, PDSO20
LTC3835IGN-1#TR 3 A SWITCHING CONTROLLER, 580 kHz SWITCHING FREQ-MAX, PDSO16
相關(guān)代理商/技術(shù)參數(shù)
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