DATA SHORT
ISL91212AR5770, ISL91212BR5771, ISL91212BR5769,
ISL91212BR5775, ISL91212BR5772
Triple/Quad Output Power Management ICs
The
ISL91212AR5770
is a 4-phase, three output
programmable Power Management IC (PMIC) and the
ISL91212BR5771, ISL91212BR5769,
ISL91212BR5775,
and
ISL91212BR5772
are 4-phase,
four output programmable PMICs. 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
requiring high output power and small solution size.
These ISL91212 PMICs 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. These
PMICs deliver highly robust power solutions by using a
controller based on Intersil’s proprietary R5 Technology,
which provides tight output accuracy and load regulation,
ultra-fast transient response, seamless DCM/CCM
transitions, and require no external compensation.
In addition to the standard interrupt, chip enable, and
watchdog reset functions, these ISL91212 PMICs feature
three MPIOs and two GPIOs capable of supporting I
2
C
communication and various other pin mode functions.
FN8985
Rev. 0.00
Nov 6, 2017
Features
• Triple output 2+1+1 phases (ISL91212AR5770) or
quad output single phase (ISL91212BR5771,
ISL91212BR5769, ISL91212BR5775, and
ISL91212BR5772)
• 2.5V to 5.5V supply voltage
• 5A per phase output current capability
• Small solution size (7x10mm
2
for four phase design)
• High efficiency
(94.7% for 3.8V
IN
/1.8V
OUT
)
• Low I
Q
in low power mode
• Patented control scheme reduces output capacitor and
supports fast load transient (such as 50A/µs/phase)
• ±0.7% system accuracy, remote voltage sensing
• Programmable PWM frequency from 2MHz to 6MHz
• I
2
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
• 2.551x3.67mm 35 ball WLCSP with 0.5mm pin pitch
Applications
• FPGA power
• Industrial MPU power, human machine interface
• Optical transceivers
• SSD
Related Literature
• For a full list of related documents, visit our website
•
ISL91212AR5770, ISL91212BR5771,
ISL91212BR5769, ISL91212BR5775,
and
ISL91212BR5772
product pages
100.00
95.00
Efficiency (%)
100.00
95.00
Efficiency (%)
90.00
85.00
80.00
75.00
Test Conditions:
VIN = 3.8V
TA = 25 °C, L = 560nH (4020 Size)
0.10
1.00
3.3VIN, 1.8VOUT
3.8VIN, 1.8VOUT
5.0VIN, 1.8VOUT
10.00
90.00
85.00
80.00
75.00
Test Conditions:
VIN = 3.8V
TA = 25 °C, L = 560nH (4020 Size)
0.10
Load Current (A)
3.3VIN, 1.8VOUT
3.8VIN, 1.8VOUT
5.0VIN, 1.8VOUT
1.00
70.00
0.01
70.00
0.01
Load Current (A)
Figure 1. Dual Phase Efficiency
Figure 2. Single Phase Efficiency
FN8985 Rev. 0.00
Nov 6, 2017
Page 1 of 2
ISL91212AR5770, ISL91212BR5771, ISL91212BR5769,
ISL91212BR5775, ISL91212BR5772
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For additional products, see
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Intersil products are manufactured, assembled and tested utilizing ISO9001 quality systems as noted
in the quality certifications found at
www.intersil.com/en/support/qualandreliability.html
Intersil products are sold by description only. Intersil may modify the circuit design and/or specifications of products at any time without notice,
provided that such modification does not, in Intersil's sole judgment, affect the form, fit or function of the product. Accordingly, the reader is cautioned
to verify that datasheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no
responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result
from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.
For information regarding Intersil Corporation and its products, see
www.intersil.com
FN8985 Rev. 0.00
Nov 6, 2017
Page 2 of 2
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