5秒后页面跳转
LT8640 PDF预览

LT8640

更新时间: 2024-02-14 13:06:56
品牌 Logo 应用领域
凌特 - Linear /
页数 文件大小 规格书
26页 2036K
描述
60V, 1.2A Synchronous Monolithic Buck Regulator with 6μA Quiescent Current

LT8640 技术参数

是否无铅: 含铅是否Rohs认证: 符合
生命周期:Active包装说明:HVQCCN, LCC18/20,.12X.16,20
针数:18Reach Compliance Code:compliant
风险等级:5.24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:42 V最小输入电压:3.4 V
JESD-30 代码:R-PQCC-N18JESD-609代码:e3
长度:4 mm湿度敏感等级:1
功能数量:1端子数量:18
最高工作温度:125 °C最低工作温度:-40 °C
最大输出电流:5 A最大输出电压:42 V
最小输出电压:0.97 V封装主体材料:PLASTIC/EPOXY
封装代码:HVQCCN封装等效代码:LCC18/20,.12X.16,20
封装形状:RECTANGULAR封装形式:CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度(摄氏度):NOT SPECIFIED座面最大高度:0.8 mm
表面贴装:YES切换器配置:BUCK
最大切换频率:2150 kHz技术:BIPOLAR
温度等级:AUTOMOTIVE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:NOT SPECIFIED
宽度:3 mm

LT8640 数据手册

 浏览型号LT8640的Datasheet PDF文件第2页浏览型号LT8640的Datasheet PDF文件第3页浏览型号LT8640的Datasheet PDF文件第4页浏览型号LT8640的Datasheet PDF文件第5页浏览型号LT8640的Datasheet PDF文件第6页浏览型号LT8640的Datasheet PDF文件第7页 
LT8619/LT8619-5  
60V, 1.2A Synchronous Monolithic Buck  
Regulator with 6µA Quiescent Current  
FEATURES  
DESCRIPTION  
The LT®8619 is a compact, high efficiency, high speed  
n
Wide Input Voltage Range: 3V to 60V  
Fast Minimum Switch-On Time: 30ns  
n
n
synchronous monolithic step-down switching regulator  
that consumes only 6μA of quiescent current. The LT8619  
can deliver 1.2A of continuous current. Top and bottom  
power switches are included with all necessary circuitry  
to minimize the need for external components. Low ripple  
Burst Mode® operation enables high efficiency down to  
very low output currents while keeping the output ripple  
Ultralow Quiescent Current Burst Mode Operation:  
n
6μA I Regulating 12V to 3.3V  
Q
IN  
OUT  
n
10mV Output Ripple at No Load  
P-P  
n
n
Synchronizable/Programmable Fixed Frequency  
Forced Continuous Mode Operation: 300kHz  
to 2.2MHz  
to 10mV . A SYNC pin allows forced continuous mode  
High Efficiency Synchronous Operation:  
P-P  
n
operation synchronized to an external clock. Internal com  
-
92% Efficiency at 0.5A, 5V  
90% Efficiency at 0.5A, 3.3V  
from 12V  
OUT  
IN  
n
pensation with peak current mode topology allows the use  
of small inductors and results in fast transient response  
and good loop stability. The EN/UV pin has an accurate 1V  
from 12V  
IN  
OUT  
n
n
n
n
n
n
Low Dropout: 360mV at 0.5A  
Low EMI  
threshold and can be used to program V undervoltage  
lockout or to shut down the LT8619, reducing the input  
supply current to below 0.6μA. The PG flag signals when  
Accurate 1V Enable Pin Threshold  
IN  
Internal Soft-Start and Compensation  
Power Good Flag  
Small Thermally Enhanced 16-Lead MSOP Package  
and 10-Lead (3mm × 3mm) DFN Packages  
V
is within 7.5% of the programmed output voltage.  
OUT  
The LT8619 is available in a small 16-lead MSOP and  
10-lead 3mm × 3mm DFN packages with exposed pad  
for low thermal resistance.  
APPLICATIONS  
All registered trademarks and trademarks are the property of their respective owners.  
n
12V Automotive Systems  
n
12V and 24V Commercial Vehicles  
n
48V Electric and Hybrid Vehicles  
Industrial Supplies  
n
TYPICAL APPLICATION  
5V, 1.2A Step-Down Converter  
Efficiency at VOUT = 5V  
1ꢀꢀ  
9ꢀ  
8ꢀ  
ꢀꢁ  
6ꢀ  
ꢀꢁ  
ꢀꢁ  
ꢀꢁ  
ꢀꢁ  
1ꢀ  
1ꢀ  
f
ꢀ ꢁꢂꢂꢃꢄꢅ  
ꢀꢁꢂ  
ꢐꢋ  
6ꢏ ꢁꢉ 6ꢄꢏ  
ꢒꢓꢁ  
ꢓꢔ  
ꢀꢁꢂꢃꢄ ꢅꢆꢇꢈ  
ꢉꢊꢋꢌꢍꢎꢏꢉꢐ  
ꢐꢋ  
ꢌꢇꢌꢅꢊ  
ꢄꢇ1ꢅꢊ  
8619ꢂꢃ  
1ꢄꢅꢆ  
1
ꢉꢑꢁ  
ꢃꢏ  
ꢀꢁꢁꢂꢃꢂꢀꢄꢃꢅ  
1ꢇꢌꢍ  
ꢉꢊꢊ ꢉꢋ  
ꢝꢋꢞꢑꢏ  
ꢐꢋꢁꢏ  
1ꢄꢄꢈ  
ꢕꢖ  
ꢀꢁ1  
ꢕꢖ  
ꢒꢐꢍꢓ  
ꢉꢑꢁ  
ꢗꢗ  
1ꢅꢊ  
ꢀꢁꢂꢃꢄ ꢅꢁꢆꢆ  
ꢀꢁꢀ1  
ꢀꢁꢀꢀ1  
ꢀꢁꢀꢀꢀ1  
ꢟꢁ  
ꢓꢙꢋꢗ  
ꢖꢋꢘ  
ꢀ ꢁ8ꢂ  
ꢀ ꢁꢂꢃ  
ꢀ 1ꢁꢂ  
ꢌꢌꢅꢊ  
ꢀꢁ  
ꢀꢁ  
ꢀꢁ  
66ꢇꢃꢈ  
8619 ꢁꢍꢄ1ꢎ  
f
ꢚ ꢛꢄꢄꢈꢆꢜ  
ꢉꢓꢗ  
ꢀ ꢁ 1ꢂꢃꢄꢅ ꢆꢄꢀꢇꢈꢉꢂꢉꢂꢊꢋꢈꢂ1  
1ꢀ 1ꢀꢀ 1ꢀ 1ꢀꢁ  
ꢀꢁꢂꢃ ꢄꢅꢆꢆꢇꢈꢉ ꢊꢋꢂꢌ  
ꢀ ꢚ ꢏꢐꢓꢆꢍꢙ ꢐꢆꢀꢕꢂꢌꢄꢌꢄꢒꢠꢂꢄ1  
ꢚ ꢁꢘꢡ ꢗꢢꢌꢌꢃꢣꢛꢟ1ꢗꢌꢌ6ꢡꢌꢃꢄ  
ꢀꢁꢀꢀ1 ꢀꢁꢀ1 ꢀꢁ1  
1
ꢉꢑꢁ  
8619 ꢀꢁꢂ1ꢃ  
8619f  
1
For more information www.linear.com/LT8619  

与LT8640相关器件

型号 品牌 获取价格 描述 数据表
LT8640-1 ADI

获取价格

42V, 6A Synchronous Step-Down Silent Switcher
LT8640-1 Linear

获取价格

60V, 1.2A Synchronous Monolithic Buck Regulat
LT8640A ADI

获取价格

42V、5A/8A峰值同步降压型Silent Switcher,具有2.5μA静态电流
LT8640S ADI

获取价格

42V, 6A Synchronous Step-Down Silent Switcher
LT8640S-2 ADI

获取价格

42V, 6A Synchronous Step-Down Silent Switcher
LT8641 ADI

获取价格

具 2.5μA 静态电流的 65V、3.5A 同步降压型 Silent Switcher
LT8641A ADI

获取价格

具有2.5μA静态电流的65V、3.5A/5A峰值同步降压型Silent Switcher
LT8642-1 ADI

获取价格

18V、10A同步降压型Silent Switcher
LT8642S ADI

获取价格

18V?10A 降压 Silent Switcher 2 ?
LT8643S ADI

获取价格

42V, 6A Synchronous Step-Down Silent Switcher