MAX17082GTL+ datasheet(10/48 Pages) MAXIM

Part #	MAX17082GTL+

Description	Dual-Phase, Quick-PWM Controllers for IMVP-6/IMVP-6.5 CPU Core Power Supplies

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Manufacturer	MAXIM [Maxim Integrated Products]

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10 / 48 page

Dual-Phase, Quick-PWM Controllers for

IMVP-6+/IMVP-6.5 CPU Core Power Supplies

10

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Note 2: When pulse skipping, the output rises by approximately 1.5% when transitioning from continuous conduction to no load.

Note 3: On-time and minimum off-time specifications are measured from 50% to 50% at the DH_ and DL_ pins, with LX_ forced to

GND, BST_ forced to 5V, and a 500pF capacitor from DH_ to LX_ to simulate external MOSFET gate capacitance. Actual in-

circuit times might be different due to MOSFET switching speeds.

Note 4: Specifications to TA = -40°C and +105°C are guaranteed by design and are not production tested.

ELECTRICAL CHARACTERISTICS (continued)

(Circuit of Figure 1, VIN = 10V, VCC = VDD = VSHDN = VPGDIN = VPSI = VILIM = 5V, V3P3 = 3.3V, DPRSLPVR = GNDS = GND, VCSP1

= VCSN1 = VCSP2 = VCSN2 = 1.0000V, FB = FBAC, RFBAC = 3.57kΩ from FBAC to CSN1, D6–D0 = [0101000]; MAX17082/MAX17482:

VSLOW = 5V; MAX17021: DPRSTP = GND; TA = -40°C to +105°C, unless otherwise noted.) (Note 4)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

VALLEY CURRENT LIMIT, DROOP, AND CURRENT BALANCE

VTIME - VILIM = 100mV

7

13

VTIME - VILIM = 500mV

40

60

Current-Limit Threshold

Voltage (Positive)

VLIMIT

VCSP_ - VCSN_

ILIM = VCC

19

26

mV

CSP_, CSN_ Common-Mode

Input Range

0

2

V

Droop Amplifier

Transconductance

Gm(FBAC)

IFBAC/ [ (VCSP_ - VCSN_)],

indicates summation over all phases from 1 to

N, N = 2, VFBAC = VCSN- = 0.45V to 2V

585

610

μS

Current-Balance Amplifier

Offset

(VCSP1 - VCSN1) - (VCSP2 - VCSN2) at ICCI = 0

-1.25

+1.25

mV

CURRENT MONITOR (MAX17082/MAX17482 Only)

Current-Monitor

Transconductance

Gm(IMON)

IIMON/ [ (VCSP_ - VCSN_)],

indicates summation over all phases from 1 to

N, N = 2, VCSN_ = 0.45V to 2V

2.2

2.6

mS

IMON Clamp Voltage

VIMON,max

ISINK = 10mA

1.05

1.15

V

GATE DRIVERS

High state (pullup)

2.5

DH_ Gate Driver

On-Resistance

RON(DH_)

BST_ - LX_ forced to 5V

Low state (pulldown)

2.0

High state (pullup)

2.0

DL_ Gate Driver

On-Resistance

RON(DL_)

Low state (pulldown)

0.7

LOGIC AND I/O

Logic Input High Voltage

VIH

SHDN, PGDIN:

MAX17021: DPRSLPVR

2.3

V

Logic Input Low Voltage

VIL

SHDN, PGDIN:

MAX17021: DPRSLPVR

1.0

V

Low-Voltage Logic Input

High Voltage

VIHLV

PSI, D0–D6:

MAX17082/MAX17482: DPRSLPVR,

SLOW

MAX17021:

DPRSTP

0.67

V

Low-Voltage Logic Input

Low Voltage

VILLV

PSI, D0–D6:

MAX17082/MAX17482: DPRSLPVR,

SLOW

MAX17021:

DPRSTP

0.33

V

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