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isl91302 手册

更新时间：2019-09-10 16:54:47 大小：238K 上传用户：Jason123X查看TA发布的资源 标签：isl91302 下载积分：2分 评价赚积分 （如何评价?） 打赏 收藏 评论(0) 举报

资料介绍

isl91302  spec and brief introduction.

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isl91302b-1369904.pdf 238K

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DAT  
To request the full datasheet, please visit the product page.  
ISL91302B  
Dual/Single Output Power Management IC  
FN8828  
Rev.2.00  
Apr 5, 2018  
This a highly efficient, dual or single  
output, synchronous multiphase buck switching regulator  
that can deliver up to 5A per phase continuous output  
current. The ISL91302B features four integrated power  
stages and has the capability to assign its power stages to  
either output. This flexibility allows seamless design-in  
for a wide range of applications where dual, triple, or  
quad phase outputs are needed, such as CPU and GPU  
core power mobile applications.  
Features  
• Dual output 3+1 or 2+2, or single output 4-phase  
• 2.5V to 5.5V supply voltage  
• 5A per phase output current capability  
2
• Small solution size (7x10 mm )  
• 4 phase design requires only 12 components  
• High efficiency (94% peak)  
The ISL91302B features integrated low ON-resistance  
MOSFETs, programmable PWM frequency, and  
automatic diode emulation, which maximizes efficiency  
while minimizing the external component count and  
solution size.  
• Low I in low power mode  
Q
• Supports 50A/µs per phase transients with <150µF  
nominal output capacitance  
• Voltage, current, and temperature telemetry through  
integrated ADC plus auxiliary inputs  
Using Renesas’s proprietary R5 modulator technology,  
the ISL91302B delivers a highly robust power solution  
capable of ultra-fast transient response, excellent loop  
stability, and seamless DCM/CCM transitions without  
requiring external compensation.  
• ±0.7% system accuracy with remote voltage sensing  
• OTP Programmable PWM frequency from 2MHz to  
6MHz  
2
• I C and SPI programmable output from 0.3V to 2.0V  
The ISL91302B is widely configurable through the  
factory OTP settings. Available features which can be  
used include:  
• Independent Dynamic Voltage Scaling (DVS) for  
each output  
2
• SPI or I C interface  
• Soft-start and fault detection (UV, OV, OC, OT), short  
circuit protection  
• External signal telemetry with an internal ADC  
• 2.551mmx 3.670mm 54 ball WLCSP with 0.4mm pin  
pitch  
• Dynamic Voltage Scaling (DVS) with selectable slew  
rate  
Applications  
Please contact tional configurations.  
• Smart phones, tablets  
Related Literature  
Forelated documents, visit our website  
• FPGA and ASIC power  
• Industrial MPU power  
• Human machine interface  
• product page  
100  
95  
90  
85  
80  
V
= 3.8V  
Vout = 0.75V  
Vout = 0.9V  
Vout = 1.2V  
Vout = 1.5V  
Vout = 1.8V  
IN  
75  
70  
65  
60  
f
= 3MHz  
SW  
o
T
= +25 C  
A
L = 330nH,  
744373240033  
4.45x4.06x1.8mm  
0.100  
1.000  
Load Current (A)  
10.000  
Figure 1. 2-Phase Configuration Efficiency  
FN8828 Rev.2.00  
Apr 5, 2018  
Page 1 of 2  

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