(Preliminary)
ProductOverviewPV3114
Ultra-Small, Digital Synchronous Buck Controller with Auto-Control®,
andSMBus™and3-BitPVIDInterfaces
FEATURES
GENERALDESCRIPTION
• Auto-ControlReal-TimeAdaptiveLoopCompensation
• 3-BitParallelVID(PVID)Interface
• SMBusInterfacewithPMBus™PowerSystem
ManagementProtocol
• PrecisionMeasurement&TelemetryReporting:VOUT,
IOUT,VIN,EOUT,Temperature,DutyCycle,fSW
• ProgrammableProtection&Warning
− OutputOVP,OCP,SCP,LOS,UVWarning
− InputUVLO,OVLO
− Internal&ExternalOTP,UTWarning,&OTWarning
• Single-PinConfigurationwithEightProfileTables
• PowerManagementandConversion
− VOUTRange:0.6Vto5.5V
− ±0.5%VOUT,±1.5%VIN,&±3%IOUTAccuracyOver
Temperature
− ProgrammableFrequency(375kHzto1MHz)
− ProgrammableVOUT,Margining,&Sequencing
− ProgrammablePrecisionDutyCycleLimit
− PowerGood&RemotePowerDown
• InternalAnti-FuseBasedNVM
− -40°Cto125°C(20yeardataretentionrating)
• 28-Lead4mmx4mmQFNpackage(RoHS/PbF)
The PV3114 is a digital synchronous buck controller with
adaptive loop compensation, for point-of-load (POL)
applications.Theoutputcansupply0.6Vto5.5V,andcanbe
configuredandcontrolledviaPMBusorthroughprogramming
storedinthenon-volatilememory(NVM).Inadditiontothe
SMBus interface, PV3114 provides a 3-bit parallel VID
interfacewithamappingfrom0.85Vto1.0Vin25mVsteps,
and1.05V.
PV3114 uses Powervation’s proprietary adaptive digital
control loop, Auto-Control, which adapts on a cycle-by-cycle
basis,andprovidesactiveloopcompensationtostabilizethe
controlloopasthephasesareaddedandremoved.
The digital functionality of this PMBus power converter
controllerallowssystemtelemetry(remotemeasurementand
reporting) of current, voltage, and temperature information.
Additionally,tomaximizesystemperformanceandreliability,
the IC provides temperature correction/compensation of
several parameters. PV3114 is a fully protected DC/DC
solution that utilizes analog and digital functionality to
maximizeprotectionofthesystem.
APPLICATIONS
• ASIC,FPGA,Microprocessor,Graphics,andPOL
• PCHPower
• Networking,Communications,Storage,Server,Computing
VID2
VID1
VID0
PVIDVOUT
0
0
0
0.85V
1
0
0
0.875V
0
0
1
0.90V
1
0
1
0.925V
0
1
0
0.95V
1
1
0
0.975V
0
1
1
1.00V
1
1
1.05V
1
3-BitPVIDDecodeTable
PV3114v0.25Copyright©2015ROHM
(Preliminary)
ProductOverviewPV3114
PV3114
3.3 V
VDD33D
VDD33A
1V8
1Ω
100 nF
100 nF
100 nF
1 µF
VINSEN
1 kΩ
10 kΩ
VIN
CIN
100 nF
PMBus
SDA
SCL
DMD
CTRL
PWM
TSENP
TSENN
VIN
BST
EN
HG
PWM SW
LG
1 kΩ
GND
ISENP
Parallel VID
RS
VOUT
COUT
100 nF
ISENN
VID0
VID1
LOUT
1 kΩ
VSENP
VSENN
VID2
PG
VCOMP
100 nF
CONFIG
ADDR1
ADDR2
RC
RA1
RA2
DGND
AGND
PMBus Address
Configuration
PreliminaryReferenceCircuitwithOptionalComponentsforVOUT0.85V~1.05V
VSENP 22
VINSEN 23
AGND 25
VDD33A 24
1V8 27
VDD33D 26
DGND 28
VID2 1
AGND
(Exposed Ground Paddle)
SCL 2
20 VSENN
SDA 3
VID0 4
CTRL 5
21 VCOMP
19 ISENP
PV3114
18 ISENN
17 TSENN
N/C 6
16 CONFIG
PG 7
15 ADDR2
PinConfiguration(TopView)
PV3114v0.25Copyright©2015ROHM