MAX17080 データシートの表示（PDF） - Maxim Integrated

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MAX17080

AMD 2-/3-Output Mobile Serial VID Controller

Maxim Integrated 

AMD 2-/3-Output Mobile Serial

VID Controller

ELECTRICAL CHARACTERISTICS (continued)

(Circuit of Figure 2, VIN = 12V, VCC = VDD = VIN3 = VSHDN = VPGD_IN = 5V, VDDIO = 1.8V, VOPTION = VGNDS_ = VAGND = VPGND,

VFBDC_ = VFBAC_ = VOUT3 = VCSP_ = VCSN_ = 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

Combined-Mode Detection

Threshold

GNDS1, GNDS2, detection after REFOK,

latched, cleared by cycling SHDN

Maximum Duty Factor

DMAX

Minimum On-Time

tONMIN

SMPS1 AND SMPS2 CURRENT LIMIT

Current-Limit Threshold

Tolerance

VLIMIT

VCSP_ - VCSN_ = 0.052 x (VREF - VILIM),

(VREF - VILM) = 0.2V to 1.0V

Zero-Crossing Threshold

Idle Mode™ Threshold

VZX

VIMIN

VGND_ - VLX_, skip mode

VCSP_ - VCSN_, skip mode, 0.15 x VLIMIT

CS_ Input Leakage Current

CSP_ and CSN_, TA = +25°C

CS_ Common-Mode Input Range

CSP_ and CSN_

SMPS1 AND SMPS2 DROOP, CURRENT BALANCE, AND TRANSIENT RESPONSE

AC Droop and Current Balance

Amplifier Transconductance

Gm(FBAC_)

IFBAC_/(
VCS_), VFBAC_ = VCSN_ = 1.2V,

VCSP_ - VCSN_ = 0mV to +40mV

AC Droop and Current Balance

Amplifier Offset

IFBAC_/Gm(FBAC_)

No-Load Positive Offset

OPTION = 2V or GND

MIN TYP MAX UNITS

0.7

0.8

0.9

V

90

92

%

150

ns

-3

+3

mV

1

mV

-2

+2

mV

-0.2

+0.2

µA

0

2

V

1.94 2.00 2.06

mS

-1.5

+1.5

mV

+12.5

mV

Transient Detection Threshold

Measured at FBDC_ with respect to

steady-state FBDC_ regulation voltage,

-47

5mV hysteresis (typ)

-28

mV

SMPS3 INTERNAL 3A STEP-DOWN CONVERTER

OUT3 Load Regulation

RDROOP3 TA = +25°C

OUT3 Line Regulation

0% to 100% duty cycle

OUT3 Input Current

LX3 Leakage Current

IOUT3

ILX3

SHDN = GND, VLX3 = GND or 5.5V,

VIN3 = 5.5V, TA = +25°C

Internal MOSFET On-Resistance

RON(NH3)

RON(NL3)

High-side n-channel

Low-side n-channel

VILIM3 = VCC

LX3 Peak Current Limit

ILX3PK

VILIM3 = 3.3V

VILIM3 = 2V

VILIM3 = GND

LX3 Idle-Mode Trip Level

LX3 Zero-Crossing Trip Level

ILX3MIN

IZX3

Percentage of ILX3PK

Skip mode

Maximum Duty Factor

Minimum On-Time

DMAX

tONMIN

4.5

-100

-20

3.5

84

6.5

8.5

mV/A

5

mV

-5

+100

nA

+20

µA

100 200

m

50

100

4.0

4.5

3.4

A

2.8

2.2

25

%

20

mA

87

%

150

ns

Idle Mode is a trademark of Maxim Integrated Products, Inc.

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