DFE252012F-R47M datasheet(12/122 Pages) AD

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Electrical Characteristics—Quad-Phase Configurable Buck Converter (continued)

(VSYS = VINx = 12V, VOUT1 = 0.8V (M1_RNG = 0x0), VOUT2 = 1.1V (M2_RNG = 0x1), VOUT3 = 1.8V (M3_RNG = 0x1), VOUT4 = 3.3V

(M4_RNG = 0x2), single-phase configuration, VCE = 1.8V, VIO = 1.8V, TA = TJ = -40°C to +125°C, typical values are at TA = TJ =

+25°C, unless otherwise noted. Note 2.)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

DC Output-Voltage

Accuracy

VOUT_ACC

1Φ, FPWM mode,

VINx = 2.8V to 16V,

IOUT = 0A, TA = TJ

= 0°C to +85°C

0.3V ≤ VOUT <

0.5V (Mx_RNG =

0x0)

-3.0

+3.0

0.5V ≤ VOUT <

0.8V (Mx_RNG =

0x0)

-2.0

+2.0

0.8V ≤ VOUT ≤

1.3V (Mx_RNG =

0x0)

-1.0

+1.0

0.6V ≤ VOUT <

1.2V (Mx_RNG =

0x1)

-3.0

+3.0

1.2V ≤ VOUT <

1.9V (Mx_RNG =

0x1)

-1.5

+1.5

1.9V ≤ VOUT ≤

2.6V (Mx_RNG =

0x1)

-1.0

+1.0

1.2V ≤ VOUT <

2.2V (Mx_RNG =

0x2)

-3.0

+3.0

2.2V ≤ VOUT <

3.6V (Mx_RNG =

0x2)

-1.5

+1.5

3.6V ≤ VOUT ≤

5.2V (Mx_RNG =

0x2)

-1.0

+1.0

1Φ, FPWM mode,

VINx = 2.8V to 16V,

IOUT = 0A

VOUT = factory

default, TJ = +25°C

-0.5

+0.5

POWER STAGE

High-Side MOSFET

Peak Current Limit

IPLIM

Mx_ILIM[1:0] = 0x0

3.1

3.5

3.9

Mx_ILIM[1:0] = 0x1

4.0

4.5

5.0

Mx_ILIM[1:0] = 0x2

4.9

5.5

6.1

Mx_ILIM[1:0] = 0x3

5.4

6.0

6.6

Low-Side MOSFET

Valley Current Limit

IVLIM

Tracks IPLIM

IPLIM - 1

Low-Side MOSFET

Negative Current Limit

INLIM

FPWM mode

-3.6

-3.0

-2.4

Low-Side MOSFET

Zero-Crossing Current

Threshold

IZX

Skip or LP-skip mode

150

High-Side MOSFET On-

Resistance

RON_HS

1Φ, ILXx = 190mA

mΩ

MAX77542

16VIN/16A, Quad-Phase High-Efficiency Buck

Converter

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DFE252012F-R47M Datasheet(PDF) 12 Page - Analog Devices

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