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LT8609EMSE#PBF

更新时间： 2024-02-03 08:27:14
品牌 Logo 应用领域
凌特 - Linear PC
页数 文件大小 规格书
26页 1395K
描述
LT8609/LT8609A/LT8609B - 42V, 2A/3A Peak Synchronous Step-Down Regulator with 2.5µA Quiescent Current; Package: MSOP; Pins: 10; Temperature Range: -40°C to 85°C

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中文翻译

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LT8609EMSE#PBF 技术参数

是否Rohs认证：符合生命周期：Active
零件包装代码：MSOP包装说明：LEAD FREE, PLASTIC, MSOP-11
针数：10Reach Compliance Code：compliant
风险等级：1.6Samacsys Confidence：3
Samacsys Status：ReleasedSamacsys PartID：1052666
Samacsys Pin Count：11Samacsys Part Category：Integrated Circuit
Samacsys Package Category：Small Outline PackagesSamacsys Footprint Name：4.748
Samacsys Released Date：2019-07-09 03:01:45Is Samacsys：N
Base Number Matches：1

LT8609EMSE#PBF 数据手册

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LT8609/LT8609A/LT8609B  
42V, 2A/3A Peak  
Synchronous Step-Down Regulator  
with 2.5µA Quiescent Current  
FEATURES  
DESCRIPTION  
The LT®8609/LT8609A/LT8609B is a compact, high ef-  
n
Wide Input Voltage Range: 3.0V to 42V  
Ultralow Quiescent Current Burst Mode® Operation:  
ficiency, high speed synchronous monolithic step-down  
switching regulator that consumes only 1.7µA of non-  
switchingquiescentcurrent.TheLT8609/LT8609A/LT8609B  
can deliver 2A of continuous current with peak loads of  
3A (<1sec). Burst Mode operation enables high efficiency  
down to very low output currents while keeping the output  
n
n
<2.5µA I Regulating 12V to 3.3V  
Q
IN  
OUT  
n
Output Ripple <10mV  
P-P  
n
n
High Efficiency 2MHz Synchronous Operation:  
n
>93% Efficiency at 1A, 5V  
from 12V  
OUT  
IN  
2A Maximum Continuous Output, 3A Peak  
Transient Output  
ripplebelow10mV .ASYNCpinallowssynchronizationto  
P-P  
n
n
n
n
n
n
n
n
n
n
Fast Minimum Switch-On Time: 45ns  
Adjustable and Synchronizable: 200kHz to 2.2MHz  
Spread Spectrum Frequency Modulation for Low EMI  
Allows Use of Small Inductors  
anexternalclock,orspreadspectrummodulationforlowEMI  
operation. Internal compensation with peak current mode  
topologyallowstheuseofsmallinductorsandresultsinfast  
transient response and good loop stability. The EN/UV pin  
has an accurate 1V threshold and can be used to program  
Low Dropout  
Peak Current Mode Operation  
Accurate 1V Enable Pin Threshold  
Internal Compensation  
Output Soft-Start and Tracking  
Small 10-Lead or 16-Lead MSOP Package  
V UVLOortoshutdownthepart.AcapacitorontheTR/SS  
IN  
pin programs the output voltage ramp rate during start-up  
while the PG flag signals when V  
is within 8.5% of the  
OUT  
programmed output voltage as well as fault conditions. The  
LT8609AhasslowerswitchedgesforlowerEMIemissions.  
The LT8609B operates in pulse-skipping mode only.  
APPLICATIONS  
PULSE-SKIPPING MODE,  
Burst Mode OPERATION  
SWITCH EDGE SPEED  
n
GSM Transceivers  
LT8609  
Both  
Both  
Fast  
Medium  
Fast  
n
General Purpose Step-Down  
Low EMI Step-Down  
LT8609A  
LT8609B  
n
Pulse-Skipping  
All registered trademarks and trademarks are the property of their respective owners.  
TYPICAL APPLICATION  
12VIN to 5VOUT Efficiency  
ꢍ00  
9ꢎ  
90  
8ꢎ  
80  
ꢏꢎ  
ꢏ0  
6ꢎ  
60  
ꢎꢎ  
ꢎ0  
5V, 2MHz Step-Down  
ꢀ
ꢁꢂ  
ꢒꢋꢒꢀ ꢅꢉ ꢐ0ꢀ  
ꢀ
ꢃꢄꢅ  
ꢄꢞ  
ꢁꢂ  
ꢐꢋꢑꢍꢊ  
0ꢋꢌꢍꢊ  
ꢉꢂ ꢉꢊꢊ  
ꢆꢂꢇꢈꢀ  
ꢄꢘꢂꢙ  
ꢎꢋꢎꢍꢖ  
ꢀ
ꢒꢀ  
ꢎꢓ  
ꢉꢈꢅ  
ꢌ0ꢏꢊ  
ꢛꢅ8609  
ꢁꢂꢅꢀ  
ꢙꢙ  
ꢟꢜ  
ꢊꢃ  
ꢅꢚꢇꢄꢄ  
ꢚꢅ  
ꢌꢗ  
ꢌꢍꢊ ꢌ8ꢋꢎꢔ  
ꢌ8ꢑꢔ  
ꢎꢎꢍꢊ  
ꢜꢂꢝ  
8609 ꢅꢓ0ꢌꢕ  
f
ꢕ ꢒꢖꢗꢘ  
ꢓꢔ  
0
0ꢐꢎ0  
ꢍꢐ00  
ꢍꢐꢎ0  
ꢄꢅꢆ  
ꢒꢐ00  
ꢒꢐꢎ0  
ꢀ
ꢁꢂꢃ  
8609 ꢃꢅ0ꢍꢑ  
8609fg  
1
For more information www.linear.com/LT8609  
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中文翻译

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LT8609EMSE#PBF 替代型号

型号 品牌 替代类型 描述 数据表
LT8609EMSE#TRPBF Linear

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