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LTC3785EUF-1#PBF

更新时间： 2024-09-15 12:59:35
品牌 Logo 应用领域
凌特 - Linear 控制器
页数 文件大小 规格书
20页 240K
描述
LTC3785-1 - 10V, High Efficiency, Buck-Boost Controller with Power Good; Package: QFN; Pins: 24; Temperature Range: -40°C to 85°C

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中文翻译

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LTC3785EUF-1#PBF 技术参数

是否Rohs认证： 符合生命周期：Transferred
零件包装代码：QFN包装说明：HVQCCN, LCC24,.16SQ,20
针数：24Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：3.66其他特性：ALSO OPERATES IN ADJUSTABLE MODE FROM 2.7 V TO 10 V
模拟集成电路 - 其他类型：SWITCHING REGULATOR控制模式：VOLTAGE-MODE
控制技术：PULSE WIDTH MODULATION最大输入电压：10 V
最小输入电压：2.7 V标称输入电压：3.6 V
JESD-30 代码：S-PQCC-N24JESD-609代码：e3
长度：4 mm湿度敏感等级：1
功能数量：1端子数量：24
最高工作温度：85 °C最低工作温度：
最大输出电流：3 A封装主体材料：PLASTIC/EPOXY
封装代码：HVQCCN封装等效代码：LCC24,.16SQ,20
封装形状：SQUARE封装形式：CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度（摄氏度）：260认证状态：Not Qualified
座面最大高度：0.8 mm子类别：Switching Regulator or Controllers
表面贴装：YES切换器配置：BUCK-BOOST
最大切换频率：650 kHz技术：CMOS
温度等级：OTHER端子面层：Matte Tin (Sn)
端子形式：NO LEAD端子节距：0.5 mm
端子位置：QUAD处于峰值回流温度下的最长时间：30
宽度：4 mmBase Number Matches：1

LTC3785EUF-1#PBF 数据手册

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LTC3785-1  
10V, High Efficiency,  
Buck-Boost Controller  
with Power Good  
FEATURES  
DESCRIPTION  
The LTC®3785-1 is a high power synchronous buck-boost  
controller that drives all N-channel power MOSFETs from  
input voltages above, below and equal to the output volt-  
age. With an input range of 2.7V to 10V, the LTC3785-1 is  
well suited for a wide variety of single or dual cell Li-Ion  
or multi-cell alkaline/NiMH applications.  
n
Single Inductor Architecture Allows V Above,  
IN  
Below or Equal to V  
OUT  
n
Power Good Output Indicator  
n
2.7V to 10V Input and Output Range  
n
Up to 96% Efficiency  
n
Up to 10A of Output Current  
TM  
n
All N-Channel MOSFETs, No R  
SENSE  
Theoperatingfrequencycanbeprogrammedfrom100kHz  
to 1MHz. The soft-start time and current limit are also  
programmable. The soft-start capacitor doubles as the  
faulttimerwhichcanprogramtheICtolatchofforrecycle  
after a determined off time. Burst Mode operation is user  
controlled and can be enabled by driving the MODE pin  
high. The LTC3785-1 includes a Power Good output that  
indicates when the output voltage is within 7.5% of its  
designed setpoint.  
n
n
n
n
n
n
n
True Output Disconnect During Shutdown  
Programmable Current Limit and Soft-Start  
Optional Short-Circuit Shutdown Timer  
Output Overvoltage and Undervoltage Protection  
Programmable Frequency: 100kHz to 1MHz  
Selectable Burst Mode® Operation  
Available in 24-Lead (4mm × 4mm) Exposed Pad  
QFN Package  
APPLICATIONS  
Protection features include foldback current limit,  
short-circuit and overvoltage protection.  
n
Palmtop Computers  
n
Handheld Instruments  
, LT, LTC, LTM and Burst Mode are registered trademarks of Linear Technology  
Corporation. No R  
is a trademark of Linear Technology Corporation.  
SENSE  
n
Wireless Modems  
All other trademarks are the property of their respective owners.  
n
Cellular Telephones  
TYPICAL APPLICATION  
V
IN  
2.7V  
Efficiency vs Input Voltage  
V
OUT  
4.7μF  
TO 10V  
V
IN  
V
CC  
100  
95  
215k  
127k  
V
= 3.3V  
= 500kHz  
OUT  
OSC  
I
SVIN  
F
22μF  
TG1  
V
SENSE  
1.3k  
215k  
A
V
BST1  
270pF  
0.22μF  
I
= 2A  
LOAD  
SW1  
FB  
I
SSW1  
I
LOAD  
= 1A  
127k  
1nF  
12k  
V
DRV  
BG1  
4.7μH  
90  
LTC3785-1  
I
B
D
V
C
V
3.3V  
5A  
OUT  
RT  
SVOUT  
TG2  
49.9k  
85  
MODE  
2.5  
5.5  
7
8.5  
10  
4
V
(V)  
IN  
PGOOD  
RUN/SS  
V
BST2  
37851 TA01b  
0.22μF  
SW2  
100μF  
I
I
LSET  
SSW2  
CCM  
BG2  
42.2k  
2.2nF  
GND  
C
37851 TA01a  
37851f  
1
1234567...20

中文翻译

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LTC3785EUF-1#PBF 替代型号

型号 品牌 替代类型 描述 数据表
LTC3785EUF-1#TRPBF Linear

完全替代

 LTC3785-1 - 10V, High Efficiency, Buck-Boost Controller with Power Good; Package: QFN; Pin

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