5秒后页面跳转
捷配首页

Datasheet > LTC3858-1
LTC3858-1 PDF预览

LTC3858-1

更新时间： 2024-02-05 12:43:53
品牌 Logo 应用领域
凌特 - Linear 控制器
页数 文件大小 规格书
38页 585K
描述
Low IQ, Dual 2-Phase Synchronous Step-Down Controller

阅读下载

中文翻译

获取价格

LTC3858-1 数据手册

 浏览型号LTC3858-1的Datasheet PDF文件第2页浏览型号LTC3858-1的Datasheet PDF文件第3页浏览型号LTC3858-1的Datasheet PDF文件第4页浏览型号LTC3858-1的Datasheet PDF文件第5页浏览型号LTC3858-1的Datasheet PDF文件第6页浏览型号LTC3858-1的Datasheet PDF文件第7页 
LTC3858-1  
Low I , Dual  
Q
2-Phase Synchronous  
Step-Down Controller  
FeaTures  
DescripTion  
TheꢀLTC®3858-1ꢀisꢀaꢀhighꢀperformanceꢀdualꢀstep-downꢀ  
switchingꢀregulatorꢀcontrollerꢀthatꢀdrivesꢀallꢀN-channelꢀ  
synchronousꢀpowerꢀMOSFETꢀstages.ꢀAꢀconstantꢀfrequencyꢀ  
currentꢀmodeꢀarchitectureꢀallowsꢀaꢀphase-lockableꢀfre-  
quencyꢀofꢀupꢀtoꢀ850kHz.ꢀPowerꢀlossꢀandꢀnoiseꢀdueꢀtoꢀtheꢀ  
inputꢀcapacitorꢀESRꢀareꢀminimizedꢀbyꢀoperatingꢀtheꢀtwoꢀ  
controllerꢀoutputsꢀoutꢀofꢀphase.  
n
ꢀ Low Operating I : 170µA (One Channel On)  
Q
n
n
n
n
ꢀ Wide Output Voltage Range: 0.8V ≤ V  
≤ 24V  
OUT  
ꢀ Wide V Range: 4V to 38V  
IN  
ꢀ R  
or DCR Current Sensing  
SENSE  
ꢀ Out-of-PhaseꢀControllersꢀReduceꢀRequiredꢀInputꢀ  
CapacitanceꢀandꢀPowerꢀSupplyꢀInducedꢀNoise  
®
n
n
n
n
ꢀ OPTI-LOOP ꢀCompensationꢀMinimizesꢀC  
OUT  
ꢀ Phase-LockableꢀFrequencyꢀ(75kHz-850kHz)  
ꢀ ProgrammableꢀFixedꢀFrequencyꢀ(50kHz-900kHz)  
ꢀ SelectableꢀContinuous,ꢀPulse-Skippingꢀorꢀ  
Theꢀ170μAꢀno-loadꢀquiescentꢀcurrentꢀextendsꢀoperatingꢀ  
lifeꢀinꢀbatteryꢀpoweredꢀsystems.ꢀOPTI-LOOPꢀcompensa-  
tionꢀallowsꢀtheꢀtransientꢀresponseꢀtoꢀbeꢀoptimizedꢀoverꢀ  
aꢀwideꢀrangeꢀofꢀoutputꢀcapacitanceꢀandꢀESRꢀvalues.ꢀTheꢀ  
LTC3858-1ꢀfeaturesꢀaꢀprecisionꢀ0.8Vꢀreferenceꢀandꢀaꢀpowerꢀ  
goodꢀoutputꢀindicator.ꢀAꢀwideꢀ4Vꢀtoꢀ38Vꢀinputꢀsupplyꢀrangeꢀ  
encompassesꢀaꢀwideꢀrangeꢀofꢀintermediateꢀbusꢀvoltagesꢀ  
andꢀbatteryꢀchemistries.  
ꢀ BurstꢀMode®ꢀOperationꢀatꢀLightꢀLoads  
n
ꢀ VeryꢀLowꢀDropoutꢀOperation:ꢀ99%ꢀDutyꢀCycle  
n
ꢀ AdjustableꢀOutputꢀVoltageꢀSoft-Start  
n
ꢀ PowerꢀGoodꢀOutputꢀVoltageꢀMonitor  
n
ꢀ OutputꢀOvervoltageꢀProtection  
n
ꢀ OutputꢀLatch-OffꢀProtectionꢀDuringꢀShortꢀCircuit  
Independentꢀsoft-startꢀpinsꢀforꢀeachꢀcontrollerꢀrampꢀtheꢀ  
outputꢀvoltagesꢀduringꢀstart-up.ꢀTheꢀoutputꢀlatch-offꢀfeatureꢀ  
protectsꢀtheꢀcircuitꢀinꢀshort-circuitꢀconditions.  
n
ꢀ LowꢀShutdownꢀI :ꢀ8µA  
Q
n
n
n
ꢀ InternalꢀLDOꢀPowersꢀGateꢀDriveꢀfromꢀV ꢀorꢀEXTV  
IN  
CC  
ꢀ NoꢀCurrentꢀFoldbackꢀDuringꢀStart-Up  
ꢀ Tinyꢀ4mmꢀ×ꢀ5mmꢀQFNꢀandꢀNarrowꢀSSOPꢀPackages  
Forꢀaꢀleadlessꢀ32-pinꢀQFNꢀpackageꢀwithꢀtheꢀadditionalꢀfea-  
turesꢀofꢀadjustableꢀcurrentꢀlimit,ꢀclockꢀout,ꢀphaseꢀmodula-  
tionꢀandꢀtwoꢀPGOODꢀoutputs,ꢀseeꢀtheꢀLTC3858ꢀdataꢀsheet.  
L,ꢀLT,ꢀLTC,ꢀLTM,ꢀBurstꢀMode,ꢀOPTI-LOOP,ꢀµModule,ꢀLinearꢀTechnologyꢀandꢀtheꢀLinearꢀlogoꢀ  
applicaTions  
n
ꢀ AutomotiveꢀSystems  
areꢀregisteredꢀtrademarksꢀandꢀNoꢀR ꢀandꢀUltraFastꢀareꢀtrademarksꢀofꢀLinearꢀTechnologyꢀ  
SENSE  
n
ꢀ BatteryꢀOperatedꢀDigitalꢀDevices  
Corporation.ꢀAllꢀotherꢀtrademarksꢀareꢀtheꢀpropertyꢀofꢀtheirꢀrespectiveꢀowners.ꢀProtectedꢀbyꢀU.S.ꢀ  
Patents,ꢀincludingꢀ5481178,ꢀ5705919,ꢀ5929620,ꢀ6100678,ꢀ6144194,ꢀ6177787,ꢀ6304066,ꢀ6580258.  
n
ꢀ DistributedꢀDCꢀPowerꢀSystems  
Typical applicaTion  
High Efficiency Dual 8.5V/3.3V Step-Down Converter  
V
Efficiency and Power Loss  
IN  
9V TO 38V  
22µF  
50V  
vs Load Current  
4.7µF  
V
INTV  
CC  
100  
90  
10000  
1000  
100  
10  
IN  
TG1  
TG2  
0.1µF  
0.1µF  
BOOST1  
SW1  
BOOST2  
SW2  
3.3µH  
7.2µH  
80  
70  
EFFICIENCY  
BG1  
BG2  
60  
50  
LTC3858-1  
PGND  
POWER LOSS  
= 12V  
+
+
40  
30  
20  
10  
0
SENSE1  
SENSE1  
SENSE2  
0.01Ω  
193k  
0.007Ω  
–
1
–
V
8.5V  
3.5A  
SENSE2  
OUT2  
V
V
V
OUT1  
3.3V  
5A  
IN  
OUT  
V
V
= 3.3V  
FB1  
FB2  
I
TH2  
62.5k  
FIGURE 12 CIRCUIT  
0.1 10  
OUTPUT CURRENT (A)  
I
TH1  
SS1  
0.1  
150µF  
680pF  
15k  
680pF  
15k  
150µF  
SGND  
SS2  
0.0001 0.001  
0.01  
1
20k  
20k  
0.1µF  
0.1µF  
38581 TA01b  
38581 TA01  
38581fb  
ꢀ
1234567...38

中文翻译

下载PDF

与LTC3858-1相关器件

型号 品牌 获取价格 描述 数据表
LTC3858-2 Linear

获取价格

 		Low IQ, Dual 2-Phase Synchronous Step-Down Controller
LTC3858-2 ADI

获取价格

 		低 IQ、双通道、两相、同步降压型控制器
LTC3858-2_15 Linear

获取价格

 		Low IQ, Dual 2 Phase Synchronous Step-Down Controller
LTC3858EGN-1 Linear

获取价格

 		Low IQ, Dual 2-Phase Synchronous Step-Down Controller
LTC3858EGN-1#PBF Linear

获取价格

 		LTC3858-1 - Low IQ, Dual 2-Phase Synchronous Step-Down Controller; Package: SSOP; Pins: 28
LTC3858EGN-1#TRPBF Linear

获取价格

 		LTC3858-1 - Low IQ, Dual 2-Phase Synchronous Step-Down Controller; Package: SSOP; Pins: 28
LTC3858EGN-1PBF Linear

获取价格

 		Low IQ, Dual 2-Phase Synchronous Step-Down Controller
LTC3858EGN-1TRPBF Linear

获取价格

 		Low IQ, Dual 2-Phase Synchronous Step-Down Controller
LTC3858EUFD-1 Linear

获取价格

 		Low IQ, Dual 2-Phase Synchronous Step-Down Controller
LTC3858EUFD-1PBF Linear

获取价格

 		Low IQ, Dual 2-Phase Synchronous Step-Down Controller

与LTC3858-1相关文章

您还可以找


热门产品
PCB打样/小批量
铝基板
BOM智能配单
PCBA制造
钣金
精密CNC
模具注塑
薄膜开关
精选活动
PCBA打样特惠
四六层板品质升级
铝基板品质升级
一体化电子制造
DFM下载
服务支持
企业认证
产品展示
工厂展示
工艺能力
积分商城
关于捷配
捷配简介
企业文化
公司动态
人才招聘
联系我们
帮助中心
下单流程
付款流程
开票流程
常见问题
全球PCB制造服务专线 400-613-0088

工作时间：9:00-21:00

CEO邮箱：ceo@jiepei.com

投诉邮箱：tousu@jiepei.com

捷配网-微信公众号 微信公众号
捷配网-微信公众号 抖音公众号
资质认证：
合作快递：
支付方式：
Copyright © 2024 Jiepei.com Inc. All Rights Reserved. 版权所有:杭州捷配信息科技有限公司 浙公网安备 33010502006866号 浙ICP备10014259号-119 营业执照ICP证