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ISL91127IINZ-T

更新时间: 2024-11-09 00:53:59
品牌 Logo 应用领域
瑞萨 - RENESAS 开关
页数 文件大小 规格书
13页 1443K
描述
High Efficiency Buck-Boost Regulator with 4.5A Switches

ISL91127IINZ-T 技术参数

生命周期:Active零件包装代码:WLCSP-TKCURDL
包装说明:,针数:20
Reach Compliance Code:compliant风险等级:5.69
模拟集成电路 - 其他类型:SWITCHING REGULATORBase Number Matches:1

ISL91127IINZ-T 数据手册

 浏览型号ISL91127IINZ-T的Datasheet PDF文件第2页浏览型号ISL91127IINZ-T的Datasheet PDF文件第3页浏览型号ISL91127IINZ-T的Datasheet PDF文件第4页浏览型号ISL91127IINZ-T的Datasheet PDF文件第5页浏览型号ISL91127IINZ-T的Datasheet PDF文件第6页浏览型号ISL91127IINZ-T的Datasheet PDF文件第7页 
DATASHEET  
ISL91127  
FN8418  
Rev 4.00  
May 24, 2018  
High Efficiency Buck-Boost Regulator with 4.5A Switches  
The ISL91127 is a high-current, buck-boost switching regulator  
for systems using new battery chemistries. It uses the Renesas  
proprietary buck-boost algorithm to maintain voltage  
regulation while providing excellent efficiency and very low  
output voltage ripple when the input voltage is close to the  
output voltage.  
Features  
• Accepts input voltages above or below regulated output  
voltage  
• Automatic and seamless transitions between Buck and  
Boost modes  
• Input voltage range: 1.8V to 5.5V  
The ISL91127 can deliver at least 2.1A continuous output  
current (V  
= 3.3V) across a battery voltage range of 2.5V to  
OUT  
• Continuous output current: up to 2.1A (PVIN = 2.5V,  
4.35V. This maximizes the energy utilization of advanced,  
single-cell Li-ion battery chemistries that have significant  
capacity left at voltages below the system voltage. Its fully  
synchronous low ON-resistance 4-switch architecture and a low  
quiescent current of only 30µA optimize efficiency under all  
load conditions.  
V
= 3.3V)  
OUT  
• High efficiency: up to 96%  
• 30µA quiescent current maximizes light-load efficiency  
• 2.5MHz switching frequency minimizes external component  
size  
The ISL91127 supports stand-alone applications with a fixed  
3.3V or 3.5V output voltage or adjustable output voltage with  
an external resistor divider. Output voltages as low as 1V or as  
high as 5.2V are supported.  
• Fully protected for short-circuit, over-temperature, and  
undervoltage  
• Small 2.15mmx1.74mm WLCSP  
The ISL91127 is available in a 20 bump, 0.4mm pitch WLCSP  
(2.15mmx1.74mm) with a 2.5MHz switching frequency, which  
further reduces the size of external components.  
Applications  
• Brownout-free system voltage for smartphones and tablet  
PCs  
Related Literature  
For a full list of related documents, visit our website  
ISL91127 product page  
• Wireless communication devices  
• 2G/3G/4G RF power amplifiers  
100  
V
= 3.6V  
IN  
V
IN  
= 4V  
95  
90  
85  
80  
75  
ISL91127IINZ  
V
1.8V TO 5.5V  
IN =  
LX1  
PVIN  
L
1µH  
C
1
10µF  
1
LX2  
V
= 3.3V  
OUT  
VIN  
EN  
VOUT  
V
IN  
= 3.3V  
C
2
V
= 3V  
IN  
2x22µF  
FB  
V
= 2.5V  
IN  
MODE  
SGND PGND  
1
10  
100  
LOAD CURREN T(mA)  
1000  
FIGURE 1. TYPICAL APPLICATION: V  
OUT  
= 3.3V  
FIGURE 2. EFFICIENCY: V = 3.3V  
OUT  
FN8418 Rev 4.00  
May 24, 2018  
Page 1 of 13  

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