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參數(shù)資料
型號(hào): LTC3608EWKG#TRPBF
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: 8 A SWITCHING REGULATOR, PQCC52
封裝: 8 X 7 MM, LEAD FREE, PLASTIC, QFN-52
文件頁(yè)數(shù): 1/26頁(yè)
文件大小: 464K
代理商: LTC3608EWKG#TRPBF
LTC3608
3608fc
0.8H
4.7F
10F
×3
VIN
4V TO 18V
VOUT
2.5V
8A
3608 TA01a
187k
0.1F
ION
VIN
SW
BOOST
RUN/SS
ITH
VON
VOUT
SGND
INTVCC
FCB
PGND
VFB
VRNG
0.22F
100F
×2
11.3k
LTC3608
1500pF
EXTVCC
PGOOD
30.1k
9.53k
100pF
LOAD CURRENT (A)
0.01
EFFICIENCY
(%)
POWER
LOSS
(mW)
80
90
3608 TA01b
70
50
60
85
95
75
55
65
0.1
1
10
100
1000
100
1
10
10000
VIN = 12V
VOUT = 2.5V
EXTVCC = 5V
POWER LOSS
EFFICIENCY
Features
applications
Description
18V, 8A Monolithic
Synchronous Step-Down
DC/DC Converter
TheLTC3608isahighefficiency,monolithicsynchronous
step-downDC/DCconverterthatcandeliverupto8Aoutput
current from a 4V to 18V (20V maximum) input supply. It
uses a valley current control architecture to deliver very
low duty cycle operation at high frequency with excellent
transient response. The operating frequency is selected
by an external resistor and is compensated for variations
in VIN and VOUT.
The LTC3608 can be configured for discontinuous or
forced continuous operation at light load. Forced continu-
ous operation reduces noise and RF interference while
discontinuous mode provides high efficiency by reducing
switching losses at light loads.
Fault protection is provided by internal foldback current
limiting,anoutputovervoltagecomparatorandanoptional
short-circuit shutdown timer. Soft-start capability for sup-
ply sequencing is accomplished using an external timing
capacitor.Theregulatorcurrentlimitisuserprogrammable.
A power good output voltage monitor indicates when
the output is in regulation. The LTC3608 is available in a
compact 7mm
× 8mm QFN package.
n
8AOutputCurrent
n
WideVINRange=4Vto18V
n
InternalN-ChannelMOSFETs
n
TrueCurrentModeControl
n
OptimizedforHighStep-DownRatios
n
tON(MIN)≤100nsec
n
ExtremelyFastTransientResponse
n
StablewithCeramicCOUT
n
±1%0.6VVoltageReference
n
Power Good Output Voltage Monitor
n
Adjustable On-Time/Switching Frequency
n
Adjustable Current Limit
n
Programmable Soft-Start
n
Output Overvoltage Protection
n
Optional Short-Circuit Shutdown Timer
n
Low Shutdown IQ: 15A
n
Available in a 7mm
× 8mm 52-Lead QFN Package
n
Point of Load Regulation
n
Distributed Power Systems
HighEfficiencyStep-DownConverter
EfficiencyandPowerLoss
vsLoadCurrent
typical application
L
, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
Protected by U.S. Patents including 5481178, 6100678, 6580258, 5847554, 6304066.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC3608IWKG#PBF 功能描述:IC REG BUCK SYNC ADJ 8A 52QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開(kāi)關(guān)穩(wěn)壓器 系列:- 設(shè)計(jì)資源:Design Support Tool 標(biāo)準(zhǔn)包裝:1 系列:- 類型:升壓(升壓) 輸出類型:固定 輸出數(shù):1 輸出電壓:3V 輸入電壓:0.75 V ~ 2 V PWM 型:- 頻率 - 開(kāi)關(guān):- 電流 - 輸出:100mA 同步整流器:是 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-5 細(xì)型,TSOT-23-5 包裝:剪切帶 (CT) 供應(yīng)商設(shè)備封裝:TSOT-23-5 其它名稱:AS1323-BTTT-30CT
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