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ISL91117II7Z-T PDF预览

ISL91117II7Z-T

更新时间: 2024-09-20 00:59:59
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12页 806K
描述
High Efficiency Synchronous Boost Converter with 4.2A Switches and Output Disconnect

ISL91117II7Z-T 技术参数

生命周期:Transferred包装说明:VFBGA,
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.74
其他特性:ALSO REQUIRE PFM CONTROL TECHNIQUE模拟集成电路 - 其他类型:SWITCHING REGULATOR
控制模式:CURRENT-MODE控制技术:PULSE WIDTH MODULATION
最大输入电压:4.8 V最小输入电压:1.8 V
标称输入电压:3.6 VJESD-30 代码:R-PBGA-B20
长度:2.335 mm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:1.5 A
标称输出电压:5 V封装主体材料:PLASTIC/EPOXY
封装代码:VFBGA封装形状:RECTANGULAR
封装形式:GRID ARRAY, VERY THIN PROFILE, FINE PITCH座面最大高度:0.59 mm
表面贴装:YES切换器配置:BOOST
最大切换频率:2600 kHz温度等级:INDUSTRIAL
端子形式:BALL端子节距:0.4 mm
端子位置:BOTTOM宽度:1.72 mm
Base Number Matches:1

ISL91117II7Z-T 数据手册

 浏览型号ISL91117II7Z-T的Datasheet PDF文件第2页浏览型号ISL91117II7Z-T的Datasheet PDF文件第3页浏览型号ISL91117II7Z-T的Datasheet PDF文件第4页浏览型号ISL91117II7Z-T的Datasheet PDF文件第5页浏览型号ISL91117II7Z-T的Datasheet PDF文件第6页浏览型号ISL91117II7Z-T的Datasheet PDF文件第7页 
DATASHEET  
ISL91117  
FN8569  
Rev 3.00  
March 7, 2014  
High Efficiency Synchronous Boost Converter with 4.2A Switches and Output  
Disconnect  
The ISL91117 is a highly-integrated boost switching regulator  
Features  
for battery powered applications. The device provides a power  
supply solution for products using dual-cell or three-cell  
alkaline, NiCd or NiMH, or one-cell Li-ion or Li-polymer battery.  
• Input voltage range: 1.8V to 4.8V  
• Fixed 5V or adjustable output  
• Output current: up to 1.5A (PVIN = 3.3V, VOUT = 5V)  
• High efficiency: up to 96%  
This device is capable of delivering an output current of 1.5A  
with PVIN = 3.3V and VOUT = 5V. The use of a synchronous  
rectifier maximizes efficiency at high loads. No-load quiescent  
current of only 35µA optimizes efficiency under light-load  
conditions. Forced PWM and/or synchronization to an external  
clock may also be selected for noise sensitive applications.  
• 35µA quiescent current maximizes light-load efficiency  
• True input-output disconnect when disabled  
• 2.6MHz switching frequency minimizes external component  
size  
The ISL91117 is designed for standalone applications and  
supports 5V fixed output voltage or variable output voltages  
with an external resistor divider. Power supply solution size is  
minimized by a 2.34mm x 1.72mm WLCSP and a 2.6MHz  
switching frequency, which allows for the use of tiny,  
low-profile inductors and ceramic capacitors to minimize the  
size of the solution.  
• Selectable forced-PWM mode and external synchronization  
• Fully protected for short-circuit, over-temperature and  
undervoltage  
• Small 2.34mm x 1.72mm WLCSP  
Applications  
• Smart phones and tablets  
Related Literature  
AN1918, ISL91117II7-EVZ, ISL91117IIA-EVZ Evaluation  
Boards  
• Wireless communication devices  
• Products including portable HDMI and USB-OTG  
L1 1µH  
100  
VIN = 4.2V  
95  
90  
VIN =  
1.8V TO 4.8V  
BLKG  
PVIN  
85  
VIN = 3.6V  
80  
VOUT = 5V  
VIN = 3.0V  
C1  
22µF  
VOUT  
FB  
75  
VIN = 2.7V  
ISL91117  
VIN  
EN  
70  
65  
60  
55  
50  
C2  
2x22µF  
MODE  
0.1  
1
10  
100  
1000  
LOAD CURRENT (mA)  
FIGURE 1. TYPICAL FIXED OUTPUT APPLICATION  
FIGURE 2. EFFICIENCY vs LOAD CURRENT (VOUT = 5V)  
FN8569 Rev 3.00  
March 7, 2014  
Page 1 of 12  

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