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LT3695HMSE#PBF

更新时间： 2024-09-09 19:39:07
品牌 Logo 应用领域
凌特 - Linear 开关光电二极管
页数 文件大小 规格书
30页 487K
描述
LT3695 Series - 1A Fault Tolerant Micropower Step-Down Regulator; Package: MSOP; Pins: 16; Temperature Range: -40°C to 125°C

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中文翻译

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LT3695HMSE#PBF 技术参数

是否Rohs认证： 符合生命周期：Transferred
零件包装代码：MSOP包装说明：HTSSOP, TSSOP16,.19,20
针数：16Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.17其他特性：ALSO OPERATES IN ADJUSTABLE MODE FROM 0.8V TO 20V
模拟集成电路 - 其他类型：SWITCHING REGULATOR控制模式：CURRENT-MODE
控制技术：PULSE WIDTH MODULATION最大输入电压：36 V
最小输入电压：3.6 V标称输入电压：10 V
JESD-30 代码：R-PDSO-G16JESD-609代码：e3
长度：4.039 mm湿度敏感等级：1
功能数量：1端子数量：16
最大输出电流：2 A封装主体材料：PLASTIC/EPOXY
封装代码：HTSSOP封装等效代码：TSSOP16,.19,20
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：260认证状态：Not Qualified
座面最大高度：1.1 mm子类别：Switching Regulator or Controllers
表面贴装：YES切换器配置：BUCK
最大切换频率：2420 kHz技术：BIPOLAR
端子面层：Matte Tin (Sn)端子形式：GULL WING
端子节距：0.5 mm端子位置：DUAL
处于峰值回流温度下的最长时间：30宽度：3 mm
Base Number Matches：1

LT3695HMSE#PBF 数据手册

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LT3695 Series  
1A Fault Tolerant Micropower  
Step-Down Regulator  
FEATURES  
DESCRIPTION  
The LT®3695 series are adjustable frequency (250kHz to  
2.2MHz)monolithicbuckswitchingregulatorsthataccept  
input voltages up to 36V and can safely sustain transient  
voltages up to 60V. The devices include a high efficiency  
switch, aboostdiode, andthenecessaryoscillator, control  
and logic circuitry. Current mode topology is used for fast  
transient response and good loop stability. A SYNC pin  
allowstheusertosynchronizetheparttoanexternalclock,  
and to choose between low ripple Burst Mode operation  
and standard PWM operation.  
n
Wide Input Range:  
Operation from 3.6V to 36V  
Overvoltage Lockout Protects Circuits Through  
60V Transients  
n
FMEA Fault Tolerant:  
Output Stays at or Below Regulation Voltage  
During Adjacent Pin Short or When a Pin Is Left  
Floating  
n
1A Output Current  
Low Ripple (< 15mV ) Burst Mode® Operation  
n
P-P  
IN  
I = 75μA for 12V to 3.3V with No Load  
Q
OUT  
The LT3695 regulators tolerate adjacent pin shorts or  
an open pin without raising the output voltage above its  
programmed value.  
n
n
n
n
n
n
n
Adjustable Switching Frequency: 250kHz to 2.2MHz  
Short-Circuit Protected  
Synchronizable Between 300kHz and 2.2MHz  
Output Voltage: 0.8V to 20V  
Low ripple Burst Mode operation maintains high effi-  
ciency at low output currents while keeping output ripple  
below 15mV in a typical application. Shutdown reduces  
input supply current to less than 1μA while a resistor and  
capacitor on the RUN/SS pin provide a controlled output  
voltage ramp (soft-start). Protection circuitry senses the  
current in the power switch and external Schottky catch  
diodetoprotecttheLT3695regulatorsagainstshort-circuit  
conditions. Frequency foldback and thermal shutdown  
provide additional protection.  
Power Good Flag  
Fixed Output Voltage Versions for 3.3V and 5V Available  
Small, Thermally Enhanced 16-Pin MSOP Package  
APPLICATIONS  
n
Automotive Battery Regulation  
n
Automotive Entertainment Systems  
n
Distributed Supply Regulation  
Industrial Supplies  
n
L, LT, LTC, LTM, Burst Mode, Linear Technology and the Linear logo are registered trademarks of  
Linear Technology Corporation. All other trademarks are the property of their respective owners.  
The LT3695 series is available in a thermally enhanced  
16-pin MSOP package.  
TYPICAL APPLICATION  
Efficiency  
100  
5V Step-Down Converter  
V
V
IN  
V
= 5V  
OUT  
5V  
OUT  
6.9V TO 36V  
90  
80  
TRANSIENT TO 60V  
0.9A, V > 6.9V  
1A, V > 12V  
IN  
IN  
V
BD  
BOOST  
IN  
RUN/SS  
V
OUT  
= 3.3V  
2.2μF  
ON OFF  
40.2k  
0.22μF  
10μH  
V
C
SW  
LT3695  
RT  
70  
PG  
DA  
FB  
536k  
16.2k  
470pF  
SYNC  
GND PGND  
60  
50  
V
= 12V  
IN  
102k  
10μF  
L = 10μH  
f = 800kHz  
3695 TA01a  
f = 800kHz  
0
0.2  
0.4  
0.6  
0.8  
1
LOAD CURRENT (A)  
3695 TA01b  
3695fa  
1
1234567...30

中文翻译

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