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isl91302 手册
资料介绍
isl91302 spec and brief introduction.
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文件名 | 大小 |
isl91302b-1369904.pdf | 238K |
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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
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