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XR76108ELTR-F PDF预览

XR76108ELTR-F

更新时间: 2024-11-25 20:05:59
品牌 Logo 应用领域
艾科嘉 - EXAR 开关
页数 文件大小 规格书
17页 1090K
描述
Switching Regulator,

XR76108ELTR-F 技术参数

是否Rohs认证: 符合生命周期:Transferred
包装说明:QCCN,Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.72模拟集成电路 - 其他类型:SWITCHING REGULATOR
控制模式:CURRENT-MODE最大输入电压:22 V
最小输入电压:4.5 V标称输入电压:12 V
JESD-30 代码:S-XQCC-N30长度:5 mm
功能数量:1端子数量:30
最高工作温度:125 °C最低工作温度:-40 °C
最大输出电流:8 A封装主体材料:UNSPECIFIED
封装代码:QCCN封装形状:SQUARE
封装形式:CHIP CARRIER峰值回流温度(摄氏度):NOT SPECIFIED
座面最大高度:1 mm表面贴装:YES
切换器配置:BUCK最大切换频率:800 kHz
温度等级:AUTOMOTIVE端子形式:NO LEAD
端子位置:QUAD处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:5 mmBase Number Matches:1

XR76108ELTR-F 数据手册

 浏览型号XR76108ELTR-F的Datasheet PDF文件第2页浏览型号XR76108ELTR-F的Datasheet PDF文件第3页浏览型号XR76108ELTR-F的Datasheet PDF文件第4页浏览型号XR76108ELTR-F的Datasheet PDF文件第5页浏览型号XR76108ELTR-F的Datasheet PDF文件第6页浏览型号XR76108ELTR-F的Datasheet PDF文件第7页 
XR76108 and XR76112  
PowerBlox™  
8A and 12A Synchronous Step Down COT Regulator  
FEATURES  
8A and 12A Capable Step Down  
General Description  
Regulators  
4.5V to 5.5V Low VIN Operation  
The XR76108 and XR76112 are synchronous step-down  
regulators combining the controller, drivers, bootstrap  
diode and MOSFETs in a single package for point-of-load  
supplies. The XR76108 has a load current rating of 8A and  
the XR76112 has a load current rating of 12A. A wide 4.5V  
to 22V input voltage range allows for single supply  
operation from industry standard 5V, 12V and 19.6V rails.  
4.5V to 22V Wide Single Input  
Voltage  
0.6V Adjustable Output Voltage  
Controller, drivers, bootstrap diode and  
MOSFETs integrated in one package  
Proprietary Constant On-Time Control  
No Loop Compensation Required  
Ceramic Output Cap. Stable operation  
Programmable 200ns-2µs On-Time  
Constant 200kHz-800kHz Freq.  
With a proprietary emulated current mode Constant On-  
Time (COT) control scheme, the XR76108 and XR76112  
provide extremely fast line and load transient response  
using ceramic output capacitors. They require no loop  
compensation, simplifying circuit implementation and  
reducing overall component count. The control loop also  
provides 0.25% load and 0.1% line regulation and  
maintains constant operating frequency. A selectable  
power saving mode, allows the user to operate in  
discontinuous mode (DCM) at light current loads thereby  
significantly increasing the converter efficiency.  
Selectable CCM or CCM/DCM  
Operation  
Precision Enable and Power-Good Flag  
Programmable Soft-start  
5x5mm 30-pin QFN Package  
APPLICATIONS  
A host of protection features, including over-current,  
over-temperature, short-circuit and UVLO, help achieve  
safe operation under abnormal operating conditions.  
Distributed Power Architecture  
Point-of-Load Converters  
Power Supply Modules  
The XR76108/12 are available in a RoHS-compliant,  
green/halogen-free space-saving QFN 5x5mm package.  
FPGA, DSP, and Processor Supplies  
Base Stations, Switches/Routers, and  
Servers  
Typical Application  
1.220  
1.215  
1.210  
1.205  
1.200  
1.195  
1.190  
1.185  
1.180  
VIN  
VIN  
PVIN  
BST  
SW  
CBST  
Enable/Mode  
EN/MODE  
PGOOD  
VOUT  
L1  
Power Good  
R3  
CIN  
VCC  
SS  
XR76108  
XR76112  
RLIM  
CFF  
R1  
R2  
ILIM  
FB  
COUT  
TON  
AGND  
CVCC  
CSS  
RON  
PGND  
5
10  
15  
20  
VIN (V)  
Figure 2: XR76112 Line Regulation  
Figure 1: XR76108/12 Application Diagram  
©2013-2014 Exar Corporation  
www.exar.com  
Rev. 2A  

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