MAX17582 Datasheet, PDF (1/42 Pages) Maxim Integrated Products – Dual-Phase, Quick-PWM Controller for IMVP-6.5 CPU Core Power Supplies

19-4821; Rev 0; 7/09
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Dual-Phase, Quick-PWM Controller for
IMVP-6.5 CPU Core Power Supplies
General Description
The MAX17582 is a 2-/1-phase-interleaved Quick-
PWM™ step-down VID power-supply controller for
notebook CPUs. True out-of-phase operation reduces
input-ripple-current requirements and output-voltage
ripple, while easing component selection and layout dif-
ficulties. The Quick-PWM control provides instanta-
neous response to fast load-current steps. Active
voltage positioning reduces power dissipation and bulk
output capacitance requirements and allows ideal posi-
tioning compensation for tantalum, polymer, or ceramic
bulk output capacitors.
A slew-rate controller allows controlled transitions among
VID codes, controlled soft-start and shutdown, and con-
trolled exit from suspend. A thermistor-based temperature
sensor provides a programmable thermal-fault output
(VRHOT). A current-monitor output (IMON) provides an
analog current output proportional to the power consumed
by the CPU. The MAX17582 includes output undervolt-
age and thermal protection. When any of these protec-
tion features detect a fault, the controller shuts down. A
voltage-regulator power-OK (PWRGD) output indicates
the output is in regulation. Additionally, the MAX17582
features true differential current sense and a phase-good
(PHASEGD) output that indicates a phase imbalance
fault condition.
The MAX17582 implements the Intel IMVP-6.5 VID code
set. The MAX17582 is available in a 6mm x 6mm,
48-pin TQFN package.
Applications
IMVP-6.5 Core Supply
Multiphase CPU Core Supply
Voltage-Positioned, Step-Down Converters
Notebook/Desktop Computers
Blade Servers
Ordering Information
PART
TEMP RANGE PIN-PACKAGE
MAX17582GTM+
-40°C to +105°C 48 TQFN-EP*
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
Features
o Single-/Dual-Phase, Quick-PWM Controller
o ±8mV V_OUT Accuracy Over Line, Load, and
Temperature
o 7-Bit 0 to 1.50V VID Control
o Dynamic Phase Selection Optimizes Active/Sleep
Efficiency
o Transient Phase Overlap Reduces Output
Capacitance
o Integrated Boost Switches
o Active Voltage Positioning with Adjustable Gain
o Programmable 200kHz to 800kHz Switching
Frequency
o Accurate Current Balance and Current Limit
o Adjustable Slew-Rate Control
o Power-Good, Clock Enable, and Thermal-Fault
Outputs
o Phase Current Imbalance Fault Output
o Drives Large Synchronous Rectifier MOSFETs
o 4V to 26V Battery Input-Voltage Range
o Undervoltage and Thermal-Fault Protection
o IMVP-6.5 Power Sequencing and Timing
Compliant
o Soft-Startup and Soft-Shutdown
TOP VIEW
Pin Configuration
36 35 34 33 32 31 30 29 28 27 26 25
N.C. 37
24 N.C.
SLOW 38
23 PHASEGD
D0 39
22 PWRGD
D1 40
21 CLKEN
D2 41
20 V3P3
D3 42
D4 43
MAX17582
19 TON
18 PSI
D5 44
17 DPRSLPVR
D6 45
16 SHDN
CSP1 46
GND 47 +
*EP
15 CSP2
GND
14 GND
CSN1 48
13 CSN2
1 2 3 4 5 6 7 8 9 10 11 12
Quick-PWM is a trademark of Maxim Integrated Products, Inc.
THIN QFN
(6mm x 6mm)
*EXPOSED PAD. CONNECTED TO GND.
________________________________________________________________ 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.