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UCC2837D PDF预览

UCC2837D

更新时间: 2024-11-25 02:58:47
品牌 Logo 应用领域
德州仪器 - TI 信息通信管理光电二极管
页数 文件大小 规格书
8页 89K
描述
8-Pin N-FET Linear Regulator Controller

UCC2837D 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active零件包装代码:SOIC
包装说明:SOP, SOP8,.25针数:8
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01Factory Lead Time:1 week
风险等级:0.99模拟集成电路 - 其他类型:ANALOG CIRCUIT
JESD-30 代码:R-PDSO-G8JESD-609代码:e4
长度:4.9 mm湿度敏感等级:2
信道数量:1功能数量:1
端子数量:8最高工作温度:85 °C
最低工作温度:-40 °C最大输出电流:0.5 A
最大输出电压:12 V最小输出电压:1.5 V
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装等效代码:SOP8,.25封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):260
认证状态:Not Qualified座面最大高度:1.75 mm
子类别:Other Analog ICs标称供电电压 (Vsup):5 V
表面贴装:YES技术:BICMOS
温度等级:INDUSTRIAL端子面层:Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式:GULL WING端子节距:1.27 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

UCC2837D 数据手册

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UCC1837  
UCC2837  
UCC3837  
8-Pin N-FET Linear Regulator Controller  
FEATURES  
DESCRIPTION  
On Board Charge Pump to Drive  
External N-MOSFET  
The UCC3837 Linear Regulator Controller includes all the features re-  
quired for an extremely low dropout linear regulator that uses an external  
N-channel MOSFET as the pass transistor. The device can operate from  
input voltages as low as 3V and can provide high current levels, thus pro-  
viding an efficient linear solution for custom processor voltages, bus ter-  
mination voltages, and other logic level voltages below 3V. The on board  
charge pump creates a gate drive voltage capable of driving an external  
N-MOSFET which is optimal for low dropout voltage and high efficiency.  
The wide versatility of this IC allows the user to optimize the setting of  
both current limit and output voltage for applications beyond or between  
standard 3-terminal linear regulator ranges.  
Input Voltage as Low as 3V  
Duty Ratio Mode Over Current  
Protection  
Extremely Low Dropout Voltage  
Low External Parts Count  
Output Voltages as Low as 1.5V  
This 8-pin controller IC features a duty ratio current limiting technique that  
provides peak transient loading capability while limiting the average  
power dissipation of the pass transistor during fault conditions. See the  
Application Section for detailed information.  
BLOCK DIAGRAM  
VDD  
1
CS  
8
CAP  
2
CHARGE  
PUMP  
LEVEL  
SHIFT  
5
6
VOUT  
FB  
CURRENT SENSE  
AMPLIFIER  
ERROR AMPLIFIER  
140mV  
UVLO  
1.5V REF  
CURRENT SENSE  
COMPARATOR  
100mV  
3
GND  
TIMER  
7
4
CT  
COMP  
UDG-99145  
SLUS228A - AUGUST 1999  

UCC2837D 替代型号

型号 品牌 替代类型 描述 数据表
UCC3837D TI

类似代替

8-Pin N-FET Linear Regulator Controller
UCC3837DG4 TI

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8-Pin N-FET Linear Regulator Controller

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