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Teilenummer | DA9210 |
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Beschreibung | Multi-Phase 12 A DC-DC Buck Converter | |
Hersteller | Dialog Semiconductor | |
Logo | ||
Gesamt 30 Seiten DA9210
DA9210 Multi-Phase 12 A DC-DC Buck Converter
General Description
DA9210 is a multi-phase synchronous step-down converter suitable for supplying the CPU power in
smartphones, tablets, UltrabooksTM, and other handheld applications, which require high currents to
run the processor core.
DA9210 is designed to operate with four phases, each phase using a small external 0.47 µH
inductor. The buck is capable of delivering up to 12 A continuous output current with an output
voltage of 0.3 V to 1.57 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 supplied applications. Two DA9210s can be used
in parallel to deliver an output current of up to 24 A.
The DA9210 point-of-load remote-sensing feature guarantees the highest accuracy while supporting
multiple PCB routing scenarios without loss of performance. The highly-integrated design removes
the need for external switching FETs or Schottky diodes.
A programmable soft start-up can be enabled, which limits the inrush current from the input node and
ensures a slope controlled activation of the rail.
The Dynamic Voltage Control (DVC) supports adaptive adjustment of the supply voltage dependent
on the processor load. This is done via direct register write through the communication interface (I2C
or SPI compatible), via the dedicated DVC control interface, or via a programmable input pin.
DA9210 integrates over-temperature and over-current protection for increased system reliability,
without the need for external sensing components. A Power Good and Over-Current Alarm output
informs the CPU of an out range voltage output and if the current exceeds a programmable limit,
thereby enabling the processor to reduce its consumption before the supply rail collapses.
Key Features
■ 2.8 V to 5.5 V input voltage
■ Interfaces:
■ 0.3 V to 1.57 V output voltage
□ I2C and SPI
■ 12 A output current
□ Dedicated DVC
■ 24 A output current in parallel configuration
□ GPIO
■ 3 MHz nominal switching frequency
■ Adjustable soft-start
□ Enables use of low-profile inductors
■ -40 ºC to +125 ºC junction temperature
■ Output voltage accuracy ±2.5 %
operation
■ Dynamic Voltage Control (DVC)
■ Regulator supervision with automatic under-
■ Automatic phase shedding
■ Integrated power switches
■ Remote sensing at point-of-load
voltage and over-voltage protection
■ AEC Q100 grade 3 automotive option
■ Package 48 WLCSP (Route EasyTM,
equivalent to 0.8 mm pitch)
■ Power Good and Over-Current Alarm signal ■ Package 42 VFBGA 0.8 mm pitch
(automotive)
Applications
■ High performance multi-core system-on-chip ■ Tablet PCs
(SoC) applications
■ In-car infotainment/dashboard
■ Smartphones
■ Portable navigation devices
■ Mobile phones
■ UltrabooksTM
■ TV and media players
■ Embedded industrial systems
Datasheet
CFR0011-120-00
Revision 2.0
1 of 90
09-Sep-2016
© 2016 Dialog Semiconductor
DA9210
DA9210 Multi-Phase 12 A DC-DC Buck Converter
1 Block Diagram
1µF
EN_CHIP
GPIO0
Verror/
GPIO1
Iphase/
GPIO2
GPIO
GPIO
GPIO
OTP
MEMORY
DIGITAL
CORE
REGISTER
SPACE
BIAS
SUPERV
OSC
CTRL
+
DRIVE
BUCK_CLK/
GPIO3
AC_OK/
GPIO4
GPIO
GPIO
2/4-WIRE / DVC CTRL
INTERFACE
DVS
DAC
OC_PG/
nIRQ
OUT
4x 10µF
4x 0.47µH
VOUT_SENSE
4x 47µF
L/C/R PCB-CPU
VSS_NOISY
VSS_SENSE
VSS_QUIET
220nF
Figure 1: Block Diagram
Datasheet
CFR0011-120-00
Revision 2.0
6 of 90
09-Sep-2016
© 2016 Dialog Semiconductor
6 Page DA9210
DA9210 Multi-Phase 12 A DC-DC Buck Converter
3 Absolute Maximum Ratings
Table 5: Absolute Maximum Ratings
Param eter
De s cr iption
Conditions (Note 1) Min
Max Unit
TSTG
Storage temperature
-65 +150 °C
TJ Operating junction
temperature
-40 +150 °C
Note 2
V SYS
Supply voltage
-0.3 5.5
V
All pins except above
-0.3 VSYS +
0.3
V
ESD protection HBM
2000
V
Note 1
Note 2
Stresses beyond those listed under ‘Absolute maximum ratings’ may cause permanent damage to the
device. These are stress ratings only, so functional operation of the device at these or any other
conditions beyond those indicated in the operational sections of the specification are not implied.
Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
See Sections 11.1 and 8.6 for more detail
4 Recommended Operating Conditions
Table 6: Recommended Operating Conditions
Param eter
De s cr iption
Conditions
Min Typ Max Unit
V SYS
Supply voltage
2.8 5.5 V
V DD_IO
Supply voltage IO
1.2 3.6 V
Note
1
Maximum pow er
Dissipation Note 2
Derating factor above
TA = 70 °C: 33 mW/°C
48 WL-CSP
1815 2310
mW
Derating factor above
TA = 70°C: 28 mW/°C
42 VF-BGA
1540 1960
mW
Note 1 VDD_IO must not exceed VSYS
Note 2 Obtain from simulation on a 2S2P 4L JEDEC Board. Influenced by PCB technology and layout.
All voltages are referenced to VSS unless otherwise stated. Currents flowing into DA9210 are deemed
positive, currents flowing out are deemed negative. All parameters are valid over the recommended
temperature range and power supply range unless otherwise noted. Please note that power
dissipation must be limited to avoid overheating of DA9210. Maximum power dissipation should not
be reached with maximum ambient temperature.
Datasheet
CFR0011-120-00
Revision 2.0
12 of 90
09-Sep-2016
© 2016 Dialog Semiconductor
12 Page | ||
Seiten | Gesamt 30 Seiten | |
PDF Download | [ DA9210 Schematic.PDF ] |
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