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ISL91108IIAZ-T7A

更新时间： 2024-09-19 20:48:59
品牌 Logo 应用领域
瑞萨 - RENESAS 开关
页数 文件大小 规格书
9页 627K
描述
High Efficiency Buck-Boost Regulator with 4.2A Switches; WLCSP20; Temp Range: -40° to 85°C

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ISL91108IIAZ-T7A 技术参数

生命周期：Unknown零件包装代码：WLCSP
包装说明：VFBGA,针数：20
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：18 weeks
风险等级：5.68其他特性：ALSO REQUIRE PFM CONTROL TECHNIQUE
模拟集成电路 - 其他类型：SWITCHING REGULATOR控制技术：PULSE WIDTH MODULATION
最大输入电压：5.5 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
JESD-609代码：e3长度：2.335 mm
湿度敏感等级：1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
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
峰值回流温度（摄氏度）：260座面最大高度：0.59 mm
表面贴装：YES切换器配置：BUCK-BOOST
最大切换频率：2600 kHz温度等级：INDUSTRIAL
端子面层：Matte Tin (Sn) - annealed端子形式：BALL
端子节距：0.4 mm端子位置：BOTTOM
处于峰值回流温度下的最长时间：40宽度：1.72 mm
Base Number Matches：1

ISL91108IIAZ-T7A 数据手册

 浏览型号ISL91108IIAZ-T7A的Datasheet PDF文件第2页浏览型号ISL91108IIAZ-T7A的Datasheet PDF文件第3页浏览型号ISL91108IIAZ-T7A的Datasheet PDF文件第4页浏览型号ISL91108IIAZ-T7A的Datasheet PDF文件第5页浏览型号ISL91108IIAZ-T7A的Datasheet PDF文件第6页浏览型号ISL91108IIAZ-T7A的Datasheet PDF文件第7页 
DATASHEET  
ISL91108  
FN8448  
Rev 1.00  
November 12, 2014  
High Efficiency Buck-Boost Regulator with 4.2A Switches  
The ISL91108 is a highly-integrated buck-boost switching  
regulator that accepts input voltages either above or below the  
regulated output voltage. Unlike other buck-boost regulators,  
this regulator automatically transitions between operating  
modes without significant output disturbance.  
Features  
• Accepts input voltages above or below regulated output  
voltage  
• Automatic and seamless transitions between buck and  
boost modes  
This device is capable of delivering up to 2.7A of burst current  
(PVIN = 3V, V  
= 3.3V), and provides excellent efficiency due  
• Input voltage range: 1.8V to 5.5V  
OUT  
to its fully synchronous 4-switch architecture. No load  
quiescent current of only 27.5µA also optimizes efficiency  
under light-load conditions. Forced PWM and/or  
synchronization to an external clock may also be selected for  
noise sensitive applications.  
• Output current: up to 1.6A DC (PVIN = 2.8V, V  
OUT  
= 3.3V)  
• Burst current: up to 2.7A (PVIN = 3V, V  
<600µs, t = 4.6ms)  
= 3.3V, t  
ON  
OUT  
• High efficiency: up to 95%  
• 27.5µA quiescent current maximizes light load efficiency  
The ISL91108 is designed for standalone applications and  
supports a 3.3V fixed output voltage or variable output  
voltages with an external resistor divider. Output voltages as  
low as 1V or as high as 5.2V are supported using an external  
resistor divider.  
• 2.6MHz switching frequency minimizes external component  
size  
• Selectable forced PWM mode and external synchronization  
• Fully protected for short-circuit, over-temperature, and  
undervoltage  
The ISL91108 requires only a single inductor and very few  
external components. Power supply solution size is minimized  
by a 2.34mmx1.72mm WLCSP and a 2.6MHz switching  
frequency, which further reduces the size of external  
components.  
• Small 2.34mm x 1.72mm WLCSP  
Applications  
• Smartphones and tablets  
• Wireless communication devices  
• 2G/3G/4G power amplifiers  
Related Literature  
• AN1903 “ISL91108IIA-EVZ/ISL91108IIN-EVZ Evaluation  
Board User Guide”  
100  
4.5VIN  
95  
V
=
IN  
1.8V TO 5.5V  
90  
ISL91108IINZ  
85  
80  
75  
70  
65  
60  
3.5VIN  
PVIN  
LX1  
C
1
L1  
1µH  
2x10µF  
3.0VIN  
2.7VIN  
2.5VIN  
VIN  
LX2  
V
= 3.3V  
MODE  
EN  
VOUT  
OUT  
C2  
2x22µF  
FB  
55  
50  
0.001  
0.01  
0.1  
(A)  
1
I
OUT  
FIGURE 1. TYPICAL FIXED OUTPUT APPLICATION  
FIGURE 2. ISL91108IINZ EFFICIENCY vs OUTPUT CURRENT  
FN8448 Rev 1.00  
November 12, 2014  
Page 1 of 9  
1234567...9

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