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MAX774C/D PDF预览

MAX774C/D

更新时间: 2024-11-19 22:37:03
品牌 Logo 应用领域
美信 - MAXIM 稳压器开关式稳压器或控制器电源电路开关式控制器
页数 文件大小 规格书
16页 164K
描述
-5V/-12V/-15V or Adjustable, High-Efficiency, Low IQ Inverting DC-DC Controllers

MAX774C/D 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:DIE
包装说明:DIE-9针数:9
Reach Compliance Code:not_compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.78
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:3 V标称输入电压:5 V
JESD-30 代码:R-XUUC-N9JESD-609代码:e0
湿度敏感等级:1功能数量:1
端子数量:9最高工作温度:70 °C
最低工作温度:标称输出电压:-5 V
封装主体材料:UNSPECIFIED封装代码:DIE
封装形状:RECTANGULAR封装形式:UNCASED CHIP
峰值回流温度(摄氏度):240认证状态:Not Qualified
最大供电电流 (Isup):0.1 mA表面贴装:YES
切换器配置:BUCK-BOOST最大切换频率:300 kHz
技术:CMOS温度等级:COMMERCIAL
端子面层:TIN LEAD端子形式:NO LEAD
端子位置:UPPER处于峰值回流温度下的最长时间:NOT SPECIFIED
Base Number Matches:1

MAX774C/D 数据手册

 浏览型号MAX774C/D的Datasheet PDF文件第2页浏览型号MAX774C/D的Datasheet PDF文件第3页浏览型号MAX774C/D的Datasheet PDF文件第4页浏览型号MAX774C/D的Datasheet PDF文件第5页浏览型号MAX774C/D的Datasheet PDF文件第6页浏览型号MAX774C/D的Datasheet PDF文件第7页 
19-0191; Rev 1; 3/94  
-5V/-12V/-15V or Adjus ta ble ,  
High-Effic ie nc y, Low I Inve rting DC-DC Controlle rs  
Q
45/MAX76  
_______________Ge n e ra l De s c rip t io n  
____________________________Fe a t u re s  
85% Efficiency for 5mA to 1A Load Currents  
Up to 5W Output Power  
The MAX774/MAX775/MAX776 inve rting s witc hing  
regulators deliver high efficiency over three decades of  
loa d c urre nt. A uniq ue c urre nt-limite d , p uls e -  
frequency-modulated (PFM) control scheme provides  
the benefits of pulse-width modulation (high efficiency  
with heavy loads), while using less than 100µA of sup-  
ply current (vs. 2mA to 10mA for PWM converters). The  
result is high efficiency over a wide range of loads.  
100µA Max Supply Current  
5µA Max Shutdown Current  
3V to 16.5V Input Range  
-5V (MAX774), -12V (MAX775), -15V (MAX776),  
or Adjustable Output Voltage  
These ICs also use tiny external components; their high  
switching frequency (up to 300kHz) allows for less than  
5mm diameter surface-mount magnetics.  
Current-Limited PFM Control Scheme  
300kHz Switching Frequency  
The MAX774/MAX775/MAX776 accept input voltages from  
3V to 16.5V, a nd ha ve p re s e t outp ut volta g e s of  
-5V, -12V, and -15V, respectively. Or, the output voltage  
c a n b e us e r-a d jus te d with two re s is tors . Ma ximum  
______________Ord e rin g In fo rm a t io n  
V
- V  
differential voltage is limited only by the break-  
IN  
OUT  
down voltage of the chosen external switch transistor.  
PART  
TEMP. RANGE  
0°C to +70°C  
PIN-PACKAGE  
8 Plastic DIP  
8 SO  
These inverters use external P-channel MOSFET switch-  
es, allowing them to power loads up to 5W. If less  
power is required, use the MAX764/MAX765/MAX766  
inverting switching regulators with on-board MOSFETs.  
MAX774CPA  
MAX774CSA  
MAX774C/D  
MAX774EPA  
MAX774ESA  
MAX774MJA  
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  
LCD-Bias Generators  
8 CERDIP  
Ordering Information continued on last page.  
* Contact factory for dice specifications.  
High-Efficiency DC-DC Converters  
Battery-Powered Applications  
Data Communicators  
__________Typ ic a l Op e ra t in g Circ u it  
__________________P in Co n fig u ra t io n  
INPUT  
3V TO 16V  
TOP VIEW  
V+  
MAX774  
CS  
1
2
3
4
OUT  
FB  
8
GND  
EXT  
SHDN  
ON/OFF  
7
P
MAX774  
MAX775  
MAX776  
EXT  
OUTPUT  
-5V  
SHDN  
REF  
6
5
CS  
V+  
FB  
REF  
DIP/SO  
OUT  
GND  
________________________________________________________________ Maxim Integrated Products  
1
Ca ll t o ll fre e 1 -8 0 0 -9 9 8 -8 8 0 0 fo r fre e s a m p le s o r lit e ra t u re .  

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