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Qorvo

ACT8849 Datasheet Preview

ACT8849 Datasheet

Advanced PMU

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®
FEATURES
INTEGRATED POWER SUPPLIES
Four DC/DC Step-Down (Buck) Regulators
2 x 2.8A, 2 x 1.5A
Five Low-Noise LDOs
2 x 150mA, 3 x 350mA
Three Low-Input Voltage LDOs
1 x 150mA, 2 x 350mA
One Low IQ Keep-Alive LDO
Backup Battery Charger
SYSTEM CONTROL AND INTERFACE
Six General Purpose I/O with PWM Drivers
I2C Serial Interface
Interrupt Controller
SYSTEM MANAGEMENT
Reset Interface and Sequencing Controller
Power on Reset
Soft / Hard Reset
Watchdog Supervision
Multiple Sleep Modes
Thermal Management Subsystem
APPLICATIONS
Tablet PC
Mobile Internet Devices (MID)
Ebooks
Personal Navigation Devices
ACT8847 / ACT8849
Advanced PMU for Multi-Core
Application Processors
GENERAL DESCRIPTION
The ACT8847 is a complete, cost effective, and
highly-efficient ActivePMUTM power management
solution optimized for the power, voltage sequencing
and control requirements of Samsung Exynos 4210
(S5PC210/S5PV310) and other application processors.
(Please See Ordering Information Section and its
Appendix.)
The ACT8847 features four fixed-frequency, current-
mode, synchronous PWM step-down converters that
achieve peak efficiencies of up to 97%. These
regulators operate with a fixed frequency of 2.25MHz,
minimizing noise in sensitive applications and allowing
the use of small external components. These buck
regulators supply up to 2.8A of output current and can
fully satisfy the power and control requirements of the
multi-core application processor. Dynamic Voltage
Scaling (DVS) is supported either by dedicated control
pins, or through I2C interface to optimize the energy-
per-task performance for the processor. This device
also include eight low-noise LDOs (up to 350mA per
LDO), one always-ON LDO and an integrated backup
battery charger to provide a complete power system for
the processor.
The power sequence and reset controller provides
power-on reset, SW-initiated reset, and power cycle
reset for the processor. It also features the watchdog
supervisory function. Multiple sleep modes with
autonomous sleep and wake-up sequence control are
supported.
The thermal management and protection subsystem
allows the host processor to manage the power
dissipation of the PMU and the overall system
dynamically. The PMU provides a thermal warning to
the host processor when the temperature reaches a
certain threshold such that the system can turn off some
of the non-essential functions, reduce the clock
frequency and etc to manage the system temperature.
The ACT8847 is available in a compact, Pb-Free and
RoHS-compliant TQFN66-48 package.
Data Sheet Rev. L, May 27, 2020
Subject to change without notice
1 of 50
www.qorvo.com




Qorvo

ACT8849 Datasheet Preview

ACT8849 Datasheet

Advanced PMU

No Preview Available !

®
FUNCTIONAL BLOCK DIAGRAM
VIO
nRSTO
PUSH BUTTON
nPBIN
VIO
nPBSTAT
VIO
nIRQ
ACT8847
INL2
PWRHLD
PWREN
VSELR2
SCL
SDA
REFBP
GPIO1
GPIO2
GPIO3
GPIO4
GPIO5
GPIO6
Reference
System
Control
GA
EP
ACT8847 / ACT8849
Advanced PMU for Multi-Core
Application Processors
REG5
LDO
REG6
LDO
REG7
LDO
REG8
LDO
REG9
LDO
REG10
LDO
REG11
LDO
REG12
LDO
REG13
RTC LDO
VP1
To Battery
SW1
OUT1
GP14
OUT1
VP2
To Battery
SW2
OUT2
GP2
OUT2
VP3
To Battery
SW3
OUT3
GP3
OUT3
VP4
To Battery
SW4
OUT4
GP14
INL1
OUT5
OUT4
To Battery
OUT5
OUT6
OUT6
OUT7
OUT7
INL2
To Battery
OUT8
OUT8
OUT9
INL3
OUT9
To Battery
OUT10
OUT11
OUT12
OUT13
OUT10
OUT11
OUT12
OUT13
Data Sheet Rev. L, May 27, 2020
Subject to change without notice
2 of 50
www.qorvo.com


Part Number ACT8849
Description Advanced PMU
Maker Qorvo
PDF Download

ACT8849 Datasheet PDF






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