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A8697ELJ-T PDF预览

A8697ELJ-T

更新时间: 2024-02-09 01:34:43
品牌 Logo 应用领域
急速微 - ALLEGRO 稳压器
页数 文件大小 规格书
12页 614K
描述
Wide Input Voltage 4.0 A Step Down Regulator

A8697ELJ-T 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Obsolete零件包装代码:SOIC
包装说明:HSOP, SOP8,.25针数:8
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.81
模拟集成电路 - 其他类型:SWITCHING REGULATOR控制模式:CURRENT-MODE
控制技术:CONSTANT OFF TIME最大输入电压:25 V
最小输入电压:8 V标称输入电压:12 V
JESD-30 代码:R-PDSO-G8JESD-609代码:e3
长度:4.9 mm湿度敏感等级:3
功能数量:1端子数量:8
最高工作温度:85 °C最低工作温度:-40 °C
最大输出电流:7.2 A封装主体材料:PLASTIC/EPOXY
封装代码:HSOP封装等效代码:SOP8,.25
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, HEAT SINK/SLUG
峰值回流温度(摄氏度):260认证状态:Not Qualified
座面最大高度:1.75 mm子类别:Switching Regulator or Controllers
表面贴装:YES切换器配置:BUCK
温度等级:INDUSTRIAL端子面层:Matte Tin (Sn)
端子形式:GULL WING端子节距:1.27 mm
端子位置:DUAL处于峰值回流温度下的最长时间:40
宽度:3.9 mmBase Number Matches:1

A8697ELJ-T 数据手册

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A8697  
Wide Input Voltage 4.0 A Step Down Regulator  
Features and Benefits  
Description  
8 to 25 V input range  
Integrated DMOS switch  
Adjustable fixed off-time  
Adjustable output  
The A8697 is a constant off-time current mode step-down  
regulatorwithawideinputvoltagerange.Regulationvoltageis  
set by external resistors, to output voltages as low as 0.8 V.  
The A8697 includes an integrated power DMOS switch to  
reduce the total solution footprint. It also features internal  
compensation, allowing users to design stable regulators with  
minimal design efforts.  
The off-time can be set with an external resistor, allowing  
flexibility in inductor selection. Additionally, the A8697 has  
a logic level enable pin which can shut the device down and  
put it into a low quiescent current mode for power sensitive  
applications.  
The A8697 is supplied in a low-profile 8-lead SOIC with  
exposed pad (package LJ). Applications include:  
Package: 8-Lead SOIC with exposed  
thermal pad (suffix LJ)  
Applications with 8 to 25 V input  
Consumer electronics, networking equipment  
12 V lighter-powered applications (portable DVD, etc.)  
Point of Sale (POS) applications  
Approximate Scale 1:1  
Typical Application  
VIN  
+12 V  
Efficiency versus Load Current  
+
CIN  
47 μF  
25 V  
CBOOT  
0.01 μF  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
VOUT = 2.5 V  
VOUT = 1.8 V  
VOUT = 1.06 V  
BOOT  
ENB  
VIN  
LX  
VOUT  
1.06 V/ 4.0 A  
L
A8697  
3.8 μH  
D1  
R1  
2 k7  
+
TSET  
VBIAS  
FB  
COUT  
150 μF  
56 mΩ  
RTSET  
51.1 k7  
GND  
R2  
6.14 k7  
0
1
2
3
4
Ratings:  
L: CDRH104R-3R8  
COUT: EEUFM1V151  
CIN: EEVFC1H470P  
Load Current (A)  
Circuit for 12 V step down to 1.06 V at 4 A  
Efficiency curve for circuit at left  
A8697-DS, Rev. 2  

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