MAX17082GTL+ Maxim Integrated Products, MAX17082GTL+ Datasheet - Page 20

• Manufacturer Part Number: MAX17082GTL+
• Description: IC CTLR PWM DUAL IMVP-6.5 40TQFN
• Manufacturer: Maxim Integrated Products
• Series: Quick-PWM™r

Specifications of MAX17082GTL+

• Applications: Controller, Intel IMVP-6.5™
• Voltage - Input: 4.5 ~ 5.5 V
• Number Of Outputs: 1
• Operating Temperature: -40°C ~ 105°C
• Mounting Type: Surface Mount
• Package / Case: 40-TQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -
• Lead Free Status / Rohs Status: Details

Dual-Phase, Quick-PWM Controllers for
IMVP-6+/IMVP-6.5 CPU Core Power Supplies
Table 1 lists the component selection for standard
applications. Table 2 lists component suppliers for the
MAX17021/MAX17082/MAX17482/MAX17482.
The Quick-PWM control architecture is a pseudo-fixed-
frequency, constant-on-time, current-mode regulator
with voltage feed-forward (Figure 3). This architecture
relies on the output filter capacitor’s ESR to act as the
current-sense resistor, so the output ripple voltage pro-
vides the PWM ramp signal. The control algorithm is
Table 1. Component Selection for Standard Applications
20
Input-Voltage Range
Maximum Load Current
(TDC Current)
Transient Load Current
Load Line
COMPONENTS
TON Resistance (R
Inductance (L)
High-Side MOSFET (N
Low-Side MOSFET (N
Output Capacitors
(C
Input Capacitors (C
OUT
PARAMETERS
______________________________________________________________________________________
)
Free-Running, Constant-On-Time PWM
CIRCUIT
DESIGN
Controller with Input Feed-Forward
TON
IN
L
)
H
)
)
)
Detailed Description
MPC1055LR36 0.36μH,
Siliconix 1x Si4386DY
7.8m /9.5m
Siliconix 2x Si4642DY
3.9m /4.7m
200k
28x 10μF, 6V ceramic
4x 10μF, 25V ceramic
4x 330μF, 6m , 2.5V
EEFSX0D0D331XR
IMVP-6+ SV
32A, 0.8m
NEC/TOKIN
Panasonic
FIGURE 1
7V to 20V
-2.1mV/A
(10A/μs)
(f
(0805)
(1210)
(34A)
SW
44A
35A
= 300kHz)
(typ/max)
(typ/max)
MPC1055LR36 0.36μH,
Siliconix 1x Si4386DY
7.8m /9.5m
Siliconix 2x Si4642DY
3.9m /4.7m
200k
28x 10μF, 6V ceramic
4x 10μF, 25V ceramic
3x 330μF, 6m , 2.5V
EEFSX0D0D331XR
IMVP-6+ LV
32A, 0.8m
NEC/TOKIN
Panasonic
FIGURE 1
7V to 20V
(10A/μs)
(f
-4mV/A
(0805)
(1210)
(19A)
SW
23A
18A
= 300kHz)
(typ/max)
(typ/max)
simple: the high-side switch on-time is determined sole-
ly by a one-shot whose period is inversely proportional
to input voltage, and directly proportional to output volt-
age or the difference between the main and secondary
inductor currents (see the On-Time One-Shot section).
Another one-shot sets a minimum off-time. The on-time
one-shot triggers when the error comparator goes low,
the inductor current of the selected phase is below the
valley current-limit threshold, and the minimum off-time
one-shot times out. The controller maintains 180° out-of-
phase operation by alternately triggering the main and
secondary phases after the error comparator drops
below the output-voltage set point.
MPC1055LR36 0.36μH,
200k
Siliconix 1x Si4386DY
7.8m /9.5m
Siliconix 2x Si4642DY
3.9m /4.7m
28x 10μF, 6V ceramic
4x 10μF, 25V ceramic
4x 330μF, 6m , 2.5V
AUBURNDALE SV
EEFSX0D0D331XR
32A, 0.8m
NEC/TOKIN
Panasonic
FIGURE 2
7V to 20V
IMVP-6.5
-1.9mV/A
(10A/μs)
(f
(0805)
(1210)
CORE
(37A)
SW
50A
35A
= 300kHz)
(typ/max)
(typ/max)
MPC1055LR36 0.36μH,
Siliconix 1x Si4386DY
7.8m /9.5m
Siliconix 2x Si4642DY
3.9m /4.7m
200k
28x 10μF, 6V ceramic
4x 10μF, 25V ceramic
3x 330μF, 6m , 2.5V
AUBURNDALE LV
EEFSX0D0D331XR
32A, 0.8m
NEC/TOKIN
Panasonic
FIGURE 2
IMVP-6.5
7V to 20V
(10A/μs)
(f
-3mV/A
CORE
(0805)
(1210)
(19A)
SW
28A
23A
= 300kHz)
(typ/max)
(typ/max)