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MAX1709EUI PDF预览

MAX1709EUI

更新时间: 2024-11-20 13:02:03
品牌 Logo 应用领域
美信 - MAXIM 转换器
页数 文件大小 规格书
14页 310K
描述
Switching Regulator/Controller, Current-mode, 700kHz Switching Freq-Max, PDSO28

MAX1709EUI 技术参数

是否无铅:含铅是否Rohs认证:不符合
生命周期:ObsoleteReach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.3Is Samacsys:N
控制模式:CURRENT-MODEJESD-30 代码:R-PDSO-G28
JESD-609代码:e0湿度敏感等级:1
端子数量:28最高工作温度:85 °C
最低工作温度:-40 °C封装主体材料:PLASTIC/EPOXY
封装代码:TSSOP封装等效代码:TSSOP28,.25
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度(摄氏度):240认证状态:Not Qualified
子类别:Switching Regulator or Controllers表面贴装:YES
最大切换频率:700 kHz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:20Base Number Matches:1

MAX1709EUI 数据手册

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19-1724; Rev 2; 4/07  
4A, Low-Noise, High-Frequency,  
Step-Up DC-DC Converter  
MAX1709  
General Description  
Features  
The MAX1709 sets a new standard of space savings for  
high-power, step-up DC-DC conversion. It delivers up  
to 20W at a fixed (3.3V or 5V) or adjustable (2.5V to  
5.5V) output, using an on-chip power MOSFET from a  
+0.7V to +5V supply.  
On-Chip 10A Power MOSFET  
5V, 4A Output from a 3.3V Input  
Fixed 3.3V or 5V Output Voltage or  
Adjustable (2.5V to 5.5V)  
Fixed-frequency PWM operation ensures that the  
switching noise spectrum is constrained to the 600kHz  
fundamental and its harmonics, allowing easy postfilter-  
ing for noise reduction. External clock synchronization  
capability allows for even tighter noise spectrum con-  
trol. Quiescent power consumption is less than 1mW to  
extend operating time in battery-powered systems.  
Input Voltage Range Down to 0.7V  
Low Power Consumption  
1mW Quiescent Power  
1µA Current in Shutdown Mode  
Low-Noise, Constant Frequency Operation  
(600kHz)  
Two control inputs (ONA, ONB) allow simple push-on,  
push-off control through a single momentary pushbut-  
ton switch, as well as conventional on/off logic control.  
The MAX1709 also features programmable soft-start  
and current limit for design flexibility and optimum per-  
formance with batteries.  
Synchronizable Switching Frequency  
(350kHz to 1000kHz)  
Ordering Informations  
The MAX1709 is supplied in both a high-power TSSOP  
package, which allows a 10A  
switch current and a  
RMS  
PART  
TEMP RANGE  
-40°C to +85°C  
-40°C to +85°C  
PIN-PACKAGE  
16 Narrow SO  
28 TSSOP-EP*  
4A output, and a narrow SO package, which supplies a  
2.4A output with a switch rated at 6A . Although the  
MAX1709ESE  
MAX1709EUI+  
RMS  
narrow SO device has a lower RMS switch rating, it has  
the same peak switch current rating as the TSSOP  
device, and so can supply 4A loads intermittently. If  
loads of 2A or less are required, refer to the MAX1708.  
+Indicates lead(Pb)-free/RoHS-compliant package.  
*Exposed pad.  
________________________Applications  
Pin Configurations  
Routers, Servers, Workstations, Card Racks  
Local 2.5V to 3.3V or 5V Conversion  
Local 3.3V to 5V Conversion  
TOP VIEW  
ONA  
LX  
LX  
LX  
LX  
LX  
LX  
LX  
NC  
1
2
3
4
5
6
7
8
9
28 ONB  
27 CLK  
26 3.3/5  
25 NC  
3.6V or 5V RF PAs in Communications Handsets  
MAX1709  
Typical Operating Circuit  
24 NC  
23 PGND  
22 PGND  
21 PGND  
20 PGND  
19 PGND  
18 PGND  
17 NC  
INPUT  
1V TO 5V  
1μH  
OUTPUT  
3.3V, 5V,  
OR ADJ  
NC 10  
GND 11  
OFF ON  
ONA  
CLK  
LX  
UP TO 4A  
SYNC  
OR  
INTERNAL  
MAX1709  
SS/ILM 12  
REF 13  
GND  
OUT  
16 FB  
SS/LIM  
REF  
GND 14  
15 OUT  
TSSOP-EP*  
Pin Configurations continued at end of data sheet.  
________________________________________________________________ Maxim Integrated Products  
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,  
or visit Maxim's website at www.maxim-ic.com.  

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