DataSheetWiki


ADP3209 fiches techniques PDF

ON Semiconductor - Synchronous Buck Controller

Numéro de référence ADP3209
Description Synchronous Buck Controller
Fabricant ON Semiconductor 
Logo ON Semiconductor 





1 Page

No Preview Available !





ADP3209 fiche technique
5-Bit, Programmable, Single-Phase,
Synchronous Buck Controller
ADP3209
FEATURES
GENERAL DESCRIPTION
Single-chip solution
Fully compatible with the Intel® GMCH chipset voltage
regulator specifications
Integrated MOSFET drivers
±8 mV worst-case differentially sensed core voltage error
over temperature
Automatic power-saving modes maximize efficiency during
light load operation
Soft transient control reduces inrush current and audio noise
Independent current limit and load line setting inputs for
additional design flexibility
Built-in power-good masking supports
voltage identification (VID) on-the-fly transients
5-bit, digitally programmable DAC with 0.4 V to 1.25 V output
Short-circuit protection with programmable latch-off delay
Output power or current monitor options
32-lead LFCSP
APPLICATIONS
Notebook power supplies for next-generation Intel chipsets
The ADP3209 is a highly efficient, single-phase, synchronous
buck switching regulator controller. With its integrated drivers,
the ADP3209 is optimized for converting the notebook battery
voltage to render the supply voltage required by high performance
Intel chipsets. An internal 5-bit DAC is used to read a VID code
directly from the chipset and to set the GMCH core voltage to a
value within the range of 0.4 V to 1.25 V.
The ADP3209 uses a multimode architecture. It provides program-
mable switching frequency that can be optimized for efficiency
depending on the output current requirement. In addition, the
ADP3209 includes a programmable load line slope function to
adjust the output voltage as a function of the load current so that
the core voltage is always optimally positioned for a load transient.
The ADP3209 also provides accurate and reliable current overload
protection and a delayed power-good output. The IC supports
on-the-fly output voltage changes requested by the chipset.
The ADP3209 is specified over the extended commercial tempera-
ture range of 0°C to 100°C and is available in a 32-lead LFCSP.
FUNCTIONAL BLOCK DIAGRAM
RAMP VRPM RPM RT
VID4
VID3
VID2
VID1
VID0
ST
VARFREQ
SS
PWRGD
EN
VCC
GND
RAMP
GENER-
ATOR
OSCILLATOR
PWM
CMPS
PWM
LATCH
PHASE
CONTROL
VREF
SWITCH
AMPS
VID VDAC REFERENCE
DAC
SELECT
DRV
IN
ODB
ODA
+
–+
ERR AMP
++–– SS
FBRTN
CSAMP –
+
CLREF
HOUSE-
KEEPING
CLTHSEL
CLIM
CMP
+
+–
+–
REFTH BIAS
UVLO
REF
BIAS
VREF
ADP3209
PMON
PWM
CSAVG
+
BST
DRVH
SW
PVCC
DRVL
PGND
COMP
FB
LLINE
CSFB
CSREF
CSCOMP
CLIM
FBRTN
PMON PMONFS
Figure 1.
©2008 SCILLC. All rights reserved.
January 2008 – Rev. 2
Publication Order Number:
ADP3209/D

PagesPages 30
Télécharger [ ADP3209 ]


Fiche technique recommandé

No Description détaillée Fabricant
ADP320 High PSRR Voltage Regulator Analog Devices
Analog Devices
ADP3203 2-Phase IMVP-II & IMVP-III Core Controller for Mobile CPUs Analog Devices
Analog Devices
ADP3204 3-Phase IMVP-II and IMVP-III Core Controller for Mobile CPUs Analog Devices
Analog Devices
ADP3204JCP 3-Phase IMVP-II and IMVP-III Core Controller for Mobile CPUs Analog Devices
Analog Devices

US18650VTC5A

Lithium-Ion Battery

Sony
Sony
TSPC106

PCI Bus Bridge Memory Controller

ATMEL
ATMEL
TP9380

NPN SILICON RF POWER TRANSISTOR

Advanced Semiconductor
Advanced Semiconductor


www.DataSheetWiki.com    |   2020   |   Contactez-nous  |   Recherche