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MAX1623EAP PDF预览

MAX1623EAP

更新时间: 2024-11-25 22:57:59
品牌 Logo 应用领域
美信 - MAXIM 稳压器开关
页数 文件大小 规格书
12页 164K
描述
3A, Low-Voltage, Step-Down Regulator with Synchronous Rectification and Internal Switches

MAX1623EAP 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:SSOP
包装说明:SSOP-20针数:20
Reach Compliance Code:not_compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.2
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:5.5 V
最小输入电压:4.5 V标称输入电压:5 V
JESD-30 代码:R-PDSO-G20JESD-609代码:e0
长度:7.2 mm湿度敏感等级:1
功能数量:1端子数量:20
最高工作温度:85 °C最低工作温度:-40 °C
最大输出电流:5.5 A封装主体材料:PLASTIC/EPOXY
封装代码:SSOP封装等效代码:SSOP20,.3
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:1.99 mm子类别:Switching Regulator or Controllers
表面贴装:YES切换器配置:BUCK
最大切换频率:350 kHz技术:CMOS
温度等级:INDUSTRIAL端子面层:Tin/Lead (Sn85Pb15)
端子形式:GULL WING端子节距:0.65 mm
端子位置:DUAL处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:5.29 mmBase Number Matches:1

MAX1623EAP 数据手册

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19-1436; Rev 1; 9/99  
3A, Low-Voltage, Step-Down Regulator with  
Synchronous Rectification and Internal Switches  
MAX1623  
General Description  
____________________________Features  
The MAX1623 switch-mode buck regulator with syn-  
chronous rectification provides local CPU and bus-ter-  
mination power in notebook and desktop computers.  
An internal 55m(typ), 3A PMOS power switch and  
60m(typ), 3A NMOS synchronous-rectifier switch  
deliver continuous load currents up to 3A from a 5V  
supply with 95% typical efficiency. Output accuracy is  
1%, including line and load regulation.  
±1% Output Accuracy, Including Line and Load  
Regulation  
94% Efficiency  
Internal Switches  
55mPMOS Power Switch  
60mNMOS Synchronous-Rectifier Switch  
Guaranteed 3A Load Capability  
Minimal External Components  
The MAX1623 features constant-off-time, current-mode  
pulse-width-modulation (PWM) control with switching  
frequencies as high as 350kHz. An external resistor at  
the TOFF pin sets the off-time, allowing optimum design  
flexibility in terms of switching frequency, output switch-  
ing noise, and inductor size. This device is available in  
a space-saving 20-pin SSOP package.  
Pin-Selectable Fixed 3.3V, 2.5V, or  
Adjustable (1.1V to 3.8V) Output Voltage  
+4.5V to +5.5V Input Voltage Range  
400µA (typ) Supply Current  
<1µA Shutdown Supply Current  
Constant-Off-Time PWM Operation  
Switching Frequencies Up to 350kHz  
Idle ModeOperation at Light Loads  
Thermal Shutdown Protection  
Available in 20-Pin SSOP  
________________________Applications  
5V to 3.3V Conversion  
Notebook Computer CPU I/O Supply  
Desktop Computer Bus-Termination Supply  
CPU Daughter Card Supply  
DSP Supply  
Ordering Information  
PART  
TEMP. RANGE  
PIN-PACKAGE  
MAX1623EAP  
-40°C to +85°C  
20 SSOP  
Typical Operating Circuit  
Pin Configuration  
TOP VIEW  
+2.5V  
OUTPUT  
+5V  
INPUT  
IN  
LX  
LX  
IN  
1
2
3
4
5
6
7
8
9
20 LX  
19 PGND  
18 LX  
MAX1623  
LX  
V
CC  
IN  
17 PGND  
PGND  
FBSEL  
SHDN  
MAX1623  
LX  
16 LX  
IN  
15 PGND  
FB  
SHDN  
FBSEL  
TOFF  
14 V  
CC  
TOFF  
COMP REF  
GND  
13 COMP  
12 REF  
FB 10  
11 GND  
SSOP  
Idle Mode is a trademark of Maxim Integrated Products.  
________________________________________________________________ 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 1-800-835-8769.  

MAX1623EAP 替代型号

型号 品牌 替代类型 描述 数据表
MAX1623EAP+ MAXIM

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