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MAX1672

更新时间： 2024-01-04 00:54:31
品牌 Logo 应用领域
美信 - MAXIM 转换器
页数 文件大小 规格书
12页 144K
描述
Step-Up/Down DC-DC Converter in QSOP Package

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中文翻译

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MAX1672 技术参数

是否无铅： 含铅是否Rohs认证： 不符合
生命周期：Obsolete零件包装代码：SOIC
包装说明：0.150 INCH, QSOP-16针数：16
Reach Compliance Code：not_compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.21
模拟集成电路 - 其他类型：SWITCHING REGULATOR控制技术：PULSE FREQUENCY MODULATION
最大输入电压：11 V最小输入电压：1.8 V
标称输入电压：2 VJESD-30 代码：R-PDSO-G16
JESD-609代码：e0长度：4.89 mm
湿度敏感等级：1功能数量：1
端子数量：16最高工作温度：85 °C
最低工作温度：-40 °C最大输出电流：1.1 A
封装主体材料：PLASTIC/EPOXY封装代码：SSOP
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, SHRINK PITCH
峰值回流温度（摄氏度）：245认证状态：Not Qualified
座面最大高度：1.73 mm表面贴装：YES
切换器配置：BOOST温度等级：INDUSTRIAL
端子面层：Tin/Lead (Sn85Pb15)端子形式：GULL WING
端子节距：0.635 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：3.9 mm
Base Number Matches：1

MAX1672 数据手册

 浏览型号MAX1672的Datasheet PDF文件第2页浏览型号MAX1672的Datasheet PDF文件第3页浏览型号MAX1672的Datasheet PDF文件第4页浏览型号MAX1672的Datasheet PDF文件第5页浏览型号MAX1672的Datasheet PDF文件第6页浏览型号MAX1672的Datasheet PDF文件第7页 
19-1307; Rev 0a; 11/97  
S t e p -Up /Do w n DC-DC Co n ve rt e r  
in QS OP P a c k a g e  
MAX1672  
________________Ge n e ra l De s c rip t io n  
____________________________Fe a t u re s  
♦ Step-Up/Down Voltage Conversion  
♦ 1.8V to 11V Input Range  
The MAX1672 integrates a step-up DC-DC converter with a  
linear regulator to provide step-up/down voltage conver-  
sion. This device provides a constant output voltage for  
inputs that vary above and below the output voltage. It has  
a 1.8V to 11V input range and a preset 3.3V or 5V output.  
The output can also be set from 1.25V to 5.5V using two  
resistors. Typical efficiency is 85%.  
♦ 3.3V/5V or Adjustable Output Voltage Range  
♦ Output Current:  
300mA at 5V (V ≥ 2.5V)  
IN  
150mA at 5V (V ≥ 1.8V)  
IN  
The MAX1672’s step-up/linear-regulator configuration per-  
mits the use of a single, physically smaller inductor than  
can be used with competing SEPIC and flyback configura-  
tions. Switch current is also selectable, permitting the use  
of smaller inductors in low-current applications. The linear  
regulator also acts as a filter to reduce output ripple voltage.  
♦ Smaller Inductor than SEPIC and Flybacks  
♦ Load Disconnects from Input in Shutdown  
♦ Supply Current from Battery:  
85µA (No-Load)  
0.1µA (Shutdown)  
♦ PGI/PGO Low-Battery Comparator  
The MAX1672 has a low 85µA quiescent supply current, which  
is further reduced to 0.1µA in logic-controlled shutdown. The  
output voltage is disconnected from the input in shutdown.  
The MAX1672 also has a PGI/PGO low-battery detector.  
♦ 16-Pin QSOP Package  
(same footprint as 8-pin SO)  
♦ No External FETs Required  
The MAX1672 comes in a 16-pin QSOP package (same size  
as a standard 8-pin SO). For a larger device that delivers more  
output current, refer to the MAX710/MAX711. The preassem-  
bled MAX1672 evaluation kit is available to speed designs.  
♦ Thermal and Short-Circuit Protection  
________________________Ap p lic a t io n s  
______________Ord e rin g In fo rm a t io n  
Single-Cell, Lithium-Powered 2-Cell to 4-Cell AA Alkaline  
PART  
TEMP. RANGE  
0°C to +70°C  
PIN-PACKAGE  
Dice*  
Portable Devices  
Hand-Held Equipment  
MAX1672C/D  
MAX1672EEE  
3.3V and Other Low-Voltage  
Systems  
Battery-Powered Devices  
with AC Input Adapters  
-40°C to +85°C  
16 QSOP  
*Dice are tested at T = +25°C.  
A
Digital Cameras  
__________Typ ic a l Op e ra t in g Circ u it  
__________________P in Co n fig u ra t io n  
INPUT  
1.8V TO 11V  
TOP VIEW  
IN  
LX  
PGI  
PS  
LX  
PGND  
ONB  
ONA  
3/5  
1
2
3
4
5
6
7
8
16 LX  
15 PGND  
14 GND  
13 REF  
12 IN  
MAX1672  
3.3V/5V  
OUTPUT  
ON  
OFF  
OFF  
5V  
ONA  
ONB  
3/5  
OUT  
MAX1672  
ON  
3.3V  
PGI  
PGO  
ILIM  
11 PS  
0.5A  
0.8A  
ILIM  
PG0  
FB  
LOW-BATTERY  
DETECTOR  
OUTPUT  
10 FB  
REF  
9
OUT  
PGND  
GND  
QSOP  
________________________________________________________________ Maxim Integrated Products  
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.  
For small orders, phone 408-737-7600 ext. 3468.  
1234567...12

中文翻译

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