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MAX651MJA

更新时间: 2024-09-17 22:10:07
品牌 Logo 应用领域
美信 - MAXIM /
页数 文件大小 规格书
16页 267K
描述
5V/3.3V/3V or Adjustable, High-Efficiency,

MAX651MJA 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:DIP
包装说明:0.300 INCH, CERDIP-8针数:8
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 CONTROLLER控制模式:CURRENT-MODE
控制技术:PULSE FREQUENCY MODULATION最大输入电压:16.5 V
最小输入电压:4 VJESD-30 代码:R-GDIP-T8
JESD-609代码:e0湿度敏感等级:1
功能数量:1端子数量:8
最高工作温度:125 °C最低工作温度:-55 °C
最大输出电流:1.5 A标称输出电压:3.3 V
封装主体材料:CERAMIC, GLASS-SEALED封装代码:DIP
封装等效代码:DIP8(UNSPEC)封装形状:RECTANGULAR
封装形式:IN-LINE峰值回流温度(摄氏度):245
认证状态:Not Qualified座面最大高度:5.08 mm
子类别:Switching Regulator or Controllers最大供电电流 (Isup):0.1 mA
表面贴装:NO切换器配置:BUCK
最大切换频率:300 kHz技术:BICMOS
温度等级:MILITARY端子面层:TIN LEAD
端子形式:THROUGH-HOLE端子节距:2.54 mm
端子位置:DUAL处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:7.62 mmBase Number Matches:1

MAX651MJA 数据手册

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19-0225; Rev 3; 9/97  
5 V/3 .3 V/3 V o r Ad ju s t a b le , Hig h -Effic ie n c y,  
Lo w I , S t e p -Do w n DC-DC Co n t ro lle rs  
Q
491/MAX652  
_______________Ge n e ra l De s c rip t io n  
____________________________Fe a t u re s  
More than 90% Efficiency (10mA to 1.5A Loads)  
More than 12.5W Output Power  
The MAX649/MAX651/MAX652 BiCMOS, step-down DC-  
DC switching controllers provide high efficiency over  
three decades of load current. A unique, current-limited  
pulse-frequency-modulated (PFM) control scheme gives  
these devices the benefits of pulse-width-modulation  
(PWM) converters (high efficiency at heavy loads), while  
using only 100µA of supply current (vs. 2mA to 10mA for  
PWM converters). The result is high efficiency over loads  
ranging from 10mA to more than 2.5A.  
100µA Max Quiescent Supply Current  
5µA Max Shutdown Supply Current  
Less than 1.0V Dropout Voltage  
16.5V Max Input Voltage  
5V (MAX649), 3.3V (MAX651), 3V (MAX652),  
or Adjustable Output Voltage  
These devices use miniature external components.  
Their high switching frequency (up to 300kHz) allows  
for less than 9mm diameter surface-mount inductors.  
Current-Limited Control Scheme  
Up to 300kHz Switching Frequency  
The MAX649/MAX651/MAX652 have dropout voltages  
less than 1V and accept input voltages up to 16.5V.  
Outp ut volta g e s a re p re s e t a t 5V (MAX649), 3.3V  
(MAX651), and 3V (MAX652). These controllers can  
also be adjusted to any voltage from 1.5V to the input  
voltage by using two resistors.  
______________Ord e rin g In fo rm a t io n  
PART  
TEMP. RANGE  
0°C to +70°C  
PIN-PACKAGE  
8 Plastic DIP  
8 SO  
These step-down controllers drive external P-channel  
MOSFETs at loads greater than 10W. If less power is  
required, use the MAX639/MAX640/MAX653 step-down  
c onve rte rs with on-c hip FETs , whic h a llow up to a  
225mA load current.  
MAX649CPA  
MAX649CSA  
MAX649C/D  
MAX649EPA  
MAX649ESA  
MAX649MJA  
0°C to +70°C  
0°C to +70°C  
Dice*  
-40°C to +85°C  
-40°C to +85°C  
-55°C to +125°C  
8 Plastic DIP  
8 SO  
________________________Ap p lic a t io n s  
5V-to-3.3V Green PC Applications  
8 CERDIP**  
Ordering Information continued at end of data sheet.  
* Dice are tested at T = +25°C.  
**Contact factory for availability and processing to MIL-STD-883.  
High-Efficiency Step-Down Regulation  
Minimum-Component DC-DC Converters  
Battery-Powered Applications  
A
__________Typ ic a l Op e ra t in g Circ u it  
__________________P in Co n fig u ra t io n  
INPUT  
4V TO 16.5V  
TOP VIEW  
V+  
OUT  
FB  
1
2
3
4
8
7
6
5
GND  
EXT  
CS  
MAX651  
SHDN  
CS  
ON/OFF  
MAX649  
MAX651  
MAX652  
SHDN  
REF  
EXT  
P
OUTPUT  
3.3V  
V+  
DIP/SO  
OUT  
REF  
FB GND  
________________________________________________________________ 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.  

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