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ISL91212A

更新时间： 2024-09-20 14:57:59
品牌 Logo 应用领域
瑞萨 - RENESAS 集成电源管理电路
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描述
Triple Output PMIC with I2C Interface

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ISL91212A 数据手册

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DATASHEET  
ISL91212A, ISL91212B  
Triple/Quad Output PMIC with I2C Interface  
FN8962  
Rev.1.00  
Feb 20, 2020  
Add  
The ISL91212A is a four-phase, three output  
Features  
programmable Power Management IC (PMIC) and the  
ISL91212B is a four-phase, four output programmable  
PMIC. They are optimized with highly efficient  
synchronous buck converters capable of multiphase and  
single-phase operations that can deliver up to 5A per  
phase continuous output current. They feature four buck  
controllers and can reconfigure their power stages to  
these controllers. This flexibility allows seamless  
design-in for a wide range of applications that require  
high output power and small solution size.  
• Triple output 2+1+1 phases (ISL91212A) or  
quad output 1+1+1+1 single phase (ISL91212B)  
• 2.5V to 5.5V supply voltage  
• 5A per phase output current capability  
2
• Small solution size (7x10mm for 4-phase design)  
• High efficiency (94.7% for 3.8V /1.8V  
)
OUT  
IN  
• Low I in low power mode  
Q
• Patented control scheme reduces output capacitor and  
supports fast load transient (such as 50A/µs per phase)  
The ISL91212A and ISL91212B integrate low  
ON-resistance MOSFETs and programmable PWM  
frequency, allowing the use of very small external  
inductors and capacitors. They feature automatic Diode  
Emulation and Pulse Skipping modes under light-load  
conditions to further improve efficiency and maximize  
battery life. The ISL91212A and ISL91212B deliver a  
highly robust power solution by featuring a controller  
based on the proprietary Renesas R5 Technology, which  
provides tight output accuracy and load regulation,  
ultra-fast transient response, seamless DCM/CCM  
transitions, and requires no external compensation.  
• ±0.7% system accuracy, remote voltage sensing  
• Programmable PWM frequency from 2MHz to 6MHz  
2
• I C programmable output from 0.3V to 2V  
• Independent Dynamic Voltage Scaling (DVS) for  
each output  
• Soft-start and fault detection (UV, OV, OC, OT),  
short-circuit protection  
• 2.551mmx3.67mm 35 ball WLCSP with 0.5mm pin  
pitch  
In addition to standard interrupt and chip enable functions,  
the ISL91212A and ISL91212B feature three MPIOs and  
Applications  
• Smartphones, AR/VR Glasses, Drones  
2
two GPIOs capable of supporting the I C communication  
protocol and various other pin mode functions.  
• Optical Transceiver Modules  
Related Literature  
For a full list of related documents, visit our website:  
• Artificial Intelligence (AI) Processors  
• Client/Enterprise/Data Center SSD, NAS  
• ISL91212A, ISL91212B device page  
ISL91212BIIZ  
ISL91212BIIZ  
VIN  
BUCK1  
VOUT1  
5A  
PVIN_A  
PVIN_B  
PVIN_C  
VOUT1  
PH_D  
VOUT1  
VOUT2  
VOUT3  
VOUT4  
PH_D  
BUCK2  
BUCK3  
VOUT2  
5A  
PH_B  
100  
95  
RTN1  
VOUT2  
PH_B  
VOUT3  
5A  
PH_A  
PH_C  
PVIN_D  
AVIN  
VIO  
VIO  
VOUT4  
5A  
BUCK4  
RTN2  
90  
SCL/SDA  
2
VOUT3  
PH_A  
ISL91212AIIZ  
PH_D  
Test Conditions:  
85  
GPIO<1:0>  
L = 560nH (4020 Size)  
3
VOUT1  
10A  
MPIO<2:0>  
INT  
CCM Fs = 2MHz  
BUCK1  
RTN3  
VOUT4  
PH_C  
80  
75  
70  
T
= +25°C  
PH_C  
PH_B  
A
EN  
3.3Vin, 1.8Vout, 1Phase  
3.3Vin, 1.8Vout, 2Phase  
VOUT2  
5A  
BUCK2  
BUCK3  
AVIN_FILT  
AGND  
RTN4  
VOUT3  
5A  
PGNDs  
PH_A  
0.01  
0.10  
1.00  
10.00  
Phase Configurations  
Load Current (A)  
Figure 1. Simplified Block Diagram  
Figure 2. Efficiency vs Load Current  
FN8962 Rev.1.00  
Feb 20, 2020  
Page 1 of 51  
1234567...52

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