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PDF MAX17009 Data sheet ( Hoja de datos )
| Número de pieza | MAX17009 | |
| Descripción | AMD Mobile Serial VID Dual-Phase Fixed-Frequency Controller | |
| Fabricantes | Maxim Integrated Products | |
| Logotipo |  |
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19-0814; Rev 0; 5/07
EVAALVUAAILTAIOBNLEKIT
AMD Mobile Serial VID Dual-Phase
Fixed-Frequency Controller
General Description
The MAX17009 is a 2-phase, step-down interleaved,
fixed-frequency controller for AMD’s® serial VID inter-
face (SVI) CPU core supplies. Power-on detection of
the CPU configures the MAX17009 as two independent
single-phase regulators for a dual CPU core applica-
tion, or one high-current, dual-phase, combined-output
regulator for a unified core application. A reference
buffer output (NBV_BUF) sets the voltage-regulation
level for a North Bridge (NB) regulator, completing the
total CPU cores and NB power requirements.
The MAX17009 is fully AMD SVI compliant. Output volt-
ages are dynamically changed through a 2-wire serial
interface, allowing the switching regulator and the refe-
rence buffer to be individually programmed to different
voltages. A programmable slew-rate controller enables
controlled transitions between VID codes, soft-start limits
the inrush current, and soft-shutdown brings the output
voltage back down to zero without any negative ring.
Transient phase repeat improves the response of the
fixed-frequency architecture. Independently program-
mable AC and DC droop and selectable offset improve
stability and reduce the total output-capacitance
requirement. A thermistor-based temperature sensor
allows for a programmable thermal-fault output
(VRHOT). The MAX17009 includes thermal-fault protec-
tion, undervoltage protection (UVP), and selectable out-
put overvoltage protection (OVP). When any of these
protection features detect a fault, the controller shuts
down. True differential current sensing improves cur-
www.DarteanSthleimet4itU, .lcooamd-line accuracy, and current balance when
operating in combined mode. The MAX17009 has an
adjustable switching frequency, allowing 100kHz to
1.2MHz per-phase operation.
Applications
Mobile AMD SVI Core Supply
Multiphase CPU Core Supply
Voltage-Positioned, Step-Down Converters
Notebook/Desktop Computers
Pin Configuration appears at end of data sheet.
AMD is a registered trademark of Advanced Micro Devices, Inc.
Features
o Dual-Output, Fixed-Frequency, Core Supply
Controller
o Separate or Combinable Outputs Detected at
Power-Up
o Reference Buffer Output for NB Controller
o ±0.4% VOUT Accuracy Over Line, Load, and
Temperature
o AMD SVI-Compliant Serial Interface
o 7-Bit On-Board DAC: 0 to +1.550V Output Adjust
Range
o Dynamic Phase Selection Optimizes Active/Sleep
Efficiency
o Transient Phase Repeat Reduces Output
Capacitance
o True Out-of-Phase Operation Reduces Input
Capacitance
o Integrated Boost Switches
o Programmable AC and DC Droop
o Programmable 100kHz to 1.2MHz Switching
Frequency
o Accurate Current Balance and Current Limit
o Adjustable Slew-Rate Control
o Power-Good (PWRGD) and Thermal-Fault
(VRHOT) Outputs
o System Power-OK (PGD_IN) Input
o Drives Large Synchronous-Rectifier MOSFETs
o 4V to 26V Battery Input-Voltage Range
o Overvoltage, Undervoltage, and Thermal-Fault
Protection
o Power Sequencing and Timing
o Soft-Startup and Soft-Shutdown
o < 1µA Typical Shutdown Current
Ordering Information
PART
TEMP RANGE PIN-
PACKAGE
PKG
CODE
MAX17009GTL+ -40°C to +105°C 40 TQFN-EP*,
5mm x 5mm
+Denotes a lead-free package.
*EP = Exposed pad.
T4055-1
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
1 page  
AMD Mobile Serial VID Dual-Phase
Fixed-Frequency Controller
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 2, VIN = 12V, VCC = VDD1 = VDD2 = SHDN = PGD_IN = 5V, VDDIO = 1.8V, PRO = OPTION = GNDS_NB = GNDS_ =
GND_, FBDC_ = FBAC_ = CSP_ = CSN_ = 1.2V, all DAC codes set to the 1.2V code, TA = 0°C to +85°C, unless otherwise noted.
Typical values are at TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Output Undervoltage Fault-
Propagation Delay
tUVP FBDC_ forced 25mV below trip threshold
10 µs
PWRGD Threshold
Measured at
FBDC_ with
respect to
unloaded output
voltage
Lower threshold, falling
edge (undervoltage)
-350
-300
-250
V
15mV hysteresis Upper threshold, rising
(typ)
edge (overvoltage)
+150 +200 +250
PWRGD Propagation Delay
PWRGD Output Low Voltage
PWRGD Leakage Current
PWRGD Startup Delay and
Transition Blanking Time
VRHOT Trip Threshold
VRHOT Delay
VRHOT Output Low Voltage
VRHOT Leakage Current
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THRM Input Leakage
Thermal-Shutdown Threshold
GATE DRIVERS
DH_ Gate-Driver On-Resistance
DL_ Gate-Driver On-Resistance
tPWRGD_
IPWRGD_
tBLANK
tVRHOT
FBDC_ forced 25mV outside the PWRGD
trip thresholds
ISINK = 4mA
High state, PWRGD forced to 5.5V
Measured from the time when FBDC_
reaches the target voltage based on the
slew rate set by RTIME
Measured at THRM, with respect to VCC,
falling edge, 115mV hysteresis (typ)
THRM forced 25mV below the VRHOT trip
threshold, falling edge
ISINK = 4mA
High state, VRHOT forced to 5V
TSHDN Hysteresis = 15°C
RON(DH_)
RON(DL_)
BST_ - LX_ forced High state (pullup)
to 5V
Low state (pulldown)
DL_, high state
DL_, low state
10
0.4
1
20
29.5 30 30.5
10
0.4
1
-100
+100
160
0.9 2.0
0.7 2.0
0.7 2.0
0.25 0.6
µs
V
µA
µs
%
µS
V
µA
nA
°C
Ω
Ω
DH_ Gate-Driver Source/Sink
Current
IDH_ DH_ forced to 2.5V, BST_ - LX_ forced to 5V
2.2
A
DL_ Gate-Driver Source Current
IDL_ DL_ forced to 2.5V
(SOURCE)
2.7
DL_ Gate-Driver Sink Current
IDL_ (SINK) DL_ forced to 2.5V
8
Dead Time
tDH_DL
tDL_DH
DH_ low to DL_ high
DL_ low to DH_ high
15 25 40
9 20 35
Internal Boost Diode Switch RON
BST1 to VDD1, BST2 to VDD2; measure with
10mA of current
10 20
A
A
ns
Ω
_______________________________________________________________________________________ 5
5 Page 
AMD Mobile Serial VID Dual-Phase
Fixed-Frequency Controller
Typical Operating Characteristics
(Circuit of Figure 2, VIN = 12V, VDD = VCC = 5V, VDDIO = 2.5V, TA = +25°C, unless otherwise noted.)
1-PHASE EFFICIENCY vs. LOAD CURRENT
(VOUT = 1.2125V)
100
95
90
85
80
75
70
65
60
0.1
VIN = 7V
VIN = 12V
VIN = 20V
1 10
LOAD CURRENT (A)
100
1-PHASE OUTPUT VOLTAGE vs. LOAD CURRENT
(VOUT = 1.2000V, NO DROOP)
1.25
1.23
1.21
1.19
www.DataS1.h17eet4U.com
1.15
0
VIN = 12V
5 10 15
LOAD CURRENT (A)
20
1-PHASE OUTPUT VOLTAGE vs. LOAD CURRENT
(VOUT = 0.8000V, -1.2mV/A DROOP)
0.84
0.83
0.82
0.81
0.80
0.79
0.78
0.77
0.76
0.75
0.74
0
VIN = 12V
5 10 15
LOAD CURRENT (A)
20
2-PHASE EFFICIENCY vs. LOAD CURRENT
(VOUT = 1.2125V)
100
95
90
85
80
75
70
65
60
0.1
VIN = 7V
VIN = 12V
VIN = 20V
10
LOAD CURRENT (A)
100
1-PHASE EFFICIENCY vs. LOAD CURRENT
(VOUT = 0.8000V)
100
95
90
85
80
75
70
65
60
0.1
VIN = 7V
VIN = 12V
VIN = 20V
1 10
LOAD CURRENT (A)
100
1-PHASE SWITCHING FREQUENCY
vs. LOAD CURRENT
350
300
250
200
150
100
0.1
VIN = 7V
VIN = 12V
VIN = 20V
1 10
LOAD CURRENT (A)
100
1-PHASE OUTPUT VOLTAGE vs. LOAD CURRENT
(VOUT = 1.2125V, -1.2mV/A DROOP)
1.25
1.23
1.21
1.19
1.17
1.15
0
VIN = 12V
5 10 15
LOAD CURRENT (A)
20
2-PHASE EFFICIENCY vs. LOAD CURRENT
(VOUT = 0.8000V)
100
95
90
85
80
75
70
65
60
0.1
VIN = 7V
VIN = 12V
VIN = 20V
10
LOAD CURRENT (A)
100
MAXIMUM INDUCTOR CURRENT
vs. INPUT VOLTAGE
29
VOUT = 1.2V
PEAK CURRENT
DC CURRENT
27
25
23
21
19
5
10 15 20
INPUT VOLTAGE (V)
25
______________________________________________________________________________________ 11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet MAX17009.PDF ] | |
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