DA9223-A and DA9224-A
Auto Grade 0.8 mm Pitch Multi-Phase Buck Converter
General Description
DA9223-A and DA9224-A are PMICs optimized for the supply of CPUs, GPUs, and DDR memory
rails in automotive in-vehicle infotainment systems, Advanced Driver Assistance Systems (ADAS),
navigation and telematics applications. The fast transient response (10 A/µs) and load regulation are
optimized for the latest generation of multi core application processors.
DA9223-A operates as a single four-phase buck converter delivering up to 16 A output current.
DA9224-A integrates two dual-phase buck converters, capable of delivering 2 x 8 A output current.
Each buck regulates a programmable output voltage in the range of 0.3 V to 1.57 V. With an external
resistor divider the output voltage can be set to any voltage between 1.57 V and 4.3 V. The input
voltage range of 2.8 V to 5.5 V makes it suited for a wide variety of low voltage systems, including all
Li-Ion battery powered applications.
To guarantee the highest accuracy and to support multiple PCB routing scenarios without loss of
performance, a remote sensing capability is implemented in both the DA9223-A and DA9224-A.
The power devices are fully integrated, so no external FETs or Schottky diodes are needed.
A programmable soft start-up can be enabled, which limits the inrush current from the input node and
secures a slope controlled activation of the rail.
The Dynamic Voltage Control (DVC) supports adaptive adjustment of the supply voltage depending
on the processor load, either via direct register writes through the communication interface (I2C or
SPI compatible) or via an input pin.
DA9223-A and DA9224-A feature integrated over-temperature and over-current protection for
increased system reliability without the need for external sensing components. The safety feature set
is completed by a VDDIO under voltage lockout.
The configurable I2C address selection via GPI allows multiple instances of DA9223-A and DA9224-
A to be placed in an application sharing the same communication interface with different addresses.
Key Features
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2.8 V to 5.5 V input voltage
1 x 16 A DA9223-A
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Dynamic Voltage Control (DVC)
Automatic phase shedding
Integrated power switches
Remote sensing at point of load
I2C/SPI compatible interface
Adjustable soft start
2 x 8 A DA9224-A
3 MHz nominal switching frequency (allows
use of low profile [1 mm] inductors)
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±1 % accuracy (static)
±3 % accuracy (dynamic)
-40 °C to +105 ºC temperature range
AEC-Q100 grade 2 qualified
66 TFBGA 0.8 mm pitch
0.3 V to 1.57 V output voltage
1.57 V to 4.3 V with resistor divider
Applications
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In-car infotainment
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Navigation and telematics
Mobile computing
Automotive display clusters
Advanced Driver Assistance Systems (ADAS)
Industrial embedded systems
Datasheet
Revision 2.6
23-Apr-2021
CFR0011-120-00
1 of 60
© 2021 Dialog Semiconductor
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