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LT3692AEFE#PBF

更新时间： 2024-11-11 20:41:43
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
42页 775K
描述
LT3692A - Monolithic Dual Tracking 3.5A Step-Down Switching Regulator; Package: TSSOP; Pins: 38; Temperature Range: -40°C to 85°C

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LT3692AEFE#PBF 技术参数

是否Rohs认证： 符合生命周期：Transferred
零件包装代码：TSSOP包装说明：HTSSOP, TSSOP38,.25,20
针数：38Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：3.83模拟集成电路 - 其他类型：DUAL SWITCHING CONTROLLER
控制模式：CURRENT-MODE控制技术：PULSE WIDTH MODULATION
最大输入电压：35 V最小输入电压：3 V
标称输入电压：15 VJESD-30 代码：R-PDSO-G38
JESD-609代码：e3长度：9.7 mm
湿度敏感等级：1功能数量：1
端子数量：38最高工作温度：85 °C
最低工作温度：最大输出电流：5.8 A
封装主体材料：PLASTIC/EPOXY封装代码：HTSSOP
封装等效代码：TSSOP38,.25,20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）：NOT SPECIFIED
认证状态：Not Qualified座面最大高度：1.2 mm
子类别：Switching Regulator or Controllers表面贴装：YES
切换器配置：PHASE-SHIFT最大切换频率：3000 kHz
技术：BIPOLAR温度等级：OTHER
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：NOT SPECIFIED宽度：4.4 mm
Base Number Matches：1

LT3692AEFE#PBF 数据手册

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LT3692A  
Monolithic Dual Tracking  
3.5A Step-Down Switching Regulator  
FeaTures  
DescripTion  
The LT®3692A is a dual current mode PWM step-down  
DC/DCconverterwithtwointernal3.8Aswitches.Independent  
n
Wide Input Range:  
– Operation from 3V to 36V  
– OVLO Protects Circuit Through 60V Transients  
Independent Supply, Shutdown, Soft-Start, UVLO,  
Programmable Current Limit and Programmable  
Power Good for Each 3.5A Regulator  
Die Temperature Monitor  
Adjustable/Synchronizable Fixed Frequency  
Operation from 250kHz to 2MHz with Synchronized  
Clock Output  
input voltage, shutdown, feedback, soft-start, UVLO current  
limitandcomparatorpinsforeachchannelsimplifycomplex  
power supply tracking and sequencing requirements.  
n
To optimize efficiency and component size, both convert-  
ers have a programmable maximum current limit and are  
synchronized to either a common external clock input, or  
aresistorsettablefixed250kHzto2MHzinternaloscillator.  
A frequency divider is provided for channel 1 to further  
optimize component size. At all frequencies, a 180° phase  
relationshipbetweenchannelsismaintained,reducingvolt-  
age ripple and component size. A clock output is available  
for synchronizing multiple regulators.  
n
n
n
Independent Synchronized Switching Frequencies  
Optimize Component Size  
n
n
n
n
n
n
Antiphase Switching  
Outputs Can Be Paralleled  
Flexible Output Voltage Tracking  
Minimum input to output voltage ratios are improved by  
allowingtheswitchtostayonthroughmultipleclockcycles  
onlyswitchingoffwhentheboostcapacitorneedsrecharg-  
ing. Independent channel operation can be programmed  
using the SHDN pin. Disabling both converters reduces  
the total quiescent current to <10µA.  
Low Dropout: 95% Maximum Duty Cycle  
5mm × 5mm QFN Package  
FMEA Compliant 38-Pin Exposed Pad TSSOP Package  
applicaTions  
n
Automotive Supplies  
n
Distributed Supply Regulation  
The LT3692A is an improved version of the LT3692 with  
reduced minimum on-time.  
L, LT, LTC, LTM, Linear Technology, the Linear logo and Burst Mode are registered trademarks  
of Linear Technology Corporation. All other trademarks are the property of their respective owners.  
Independent Synchronized Switching Frequencies  
Extend Full Frequency Input Range  
Typical applicaTion  
3.3V and 1.2V 2-Stage Dual Step-Down Multi-Frequency Converter  
V
OUT1  
V
IN1  
5.5V TO 36V  
CH1:  
550kHz  
4.7µF  
V
V
IN2  
IN1  
SHDN1  
BST1  
SHDN2  
BST2  
0.1µF  
SW1  
IND1  
SW2  
IND2  
CH2:  
2.2MHz  
0.22µF  
4.7µH  
0.5µH  
V
1.2V  
1A  
V
OUT2  
OUT1  
3.3V  
LT3692A  
V
OUT1  
V
OUT2  
FB2  
3692A TA01b  
2.5A  
V
IN  
= 30V  
47µF  
8.06k  
24.9k  
FB1  
4.02k  
100p  
47µF  
2.2MHz  
550kHz  
100k  
CMPI1  
CMPI2 FB1  
CMPO2  
8.06k  
CMPO1  
PG  
SS1  
SS2  
ILIM1  
ILIM2  
V
V
C2  
C1  
RT/SYNC CLKOUT  
DIV  
CLKOUT  
2.2MHz  
220pF  
0.1µF  
0.1µF  
33pF 680pF  
13k  
T
J
22pF  
GND  
10nF  
40.2k  
33.2k  
100k  
68.1k 102k  
3692a TA01a  
3692a TA01c  
3692afc  
1
For more information www.linear.com/3692A  
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LT3692AEFE#PBF 替代型号

型号 品牌 替代类型 描述 数据表
LT3692AEFE#TRPBF Linear

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