Electrical Characteristics (Note 5),(Note 6) V

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

DAC Voltage Accuracy

with Internal VREF

VID codes from 1.5625V to 1.6000V

%

VID codes from 0.8375V to 1.1000V

%

VID codes from 1.1125V to 1.5500V

%

DAC Voltage Accuracy

with External VREF =

1.225V

VID codes: 1.5500V & 1.6000V

-0.6

-0.8

0.75

0.8

%

VID codes: 0.8375V & 1.0000V

-1.0

-1.2

-0.15

1.0

1.2

%

VID codes: 1.1000V, 1.2000, 1.3000, 1.4000 &

1.5000

-0.5

-0.8

0.5

0.8

%

REFERENCE VOLTAGE

Internal Reference

Voltage

1.210

1.235

1.260

V

VREF Output Load

Regulation

I

-2.5

mV

VREF Line Regulation

V

mV

External VREF Voltage REFINT=LOW, see LM27201 Electrical Specs.

1.225

V

External VREF

Compensating Offset

(applied internally)

REFINT=LOW

10

mV

STANDARD OFFSET PROGRAMMING INPUTS: VPROG, VSTDOS, IREF

IREF Output Voltage

100 µA Load Current

1.400

V

VOS

(VSTDOS-VPROG)

IREF = 80.4 µA, R

-25

mV

LOAD LINE SLOPE ADJUSTMENT (SLADJ), CURRENT LIMIT (CLIMADJ)

SLADJ2 Input Source

Current

SLADJ2 connected to GND

0.07

µA

CLIMADJ Input Source

Current

V

2

µA

Load Line Slope (LLS) SLADJ divider 41.2k/8.45k, R

Ω

-1.3

m

Ω

LLS Maximum Error

Nominal LLS = -1.3mV/A, I

Isense diff. input = 20mV; not switching

m

Ω

CURRENT SENSE LINES VILx AND VIHx

Current Sense

Amplifier Input Offset

Voltage

Common Mode Voltage = 1.30V

mV

Current Sense

Differential Voltage

Range

Over full VID range

0-100

mV

Current Sense Input

Source Current

VIHx = VILx = 100mV

14

25

µA

Differential Input

Resistance

Common Mode Voltage = 1.3V

1

k

Ω

CORE VOLTAGE ERROR AMPLIFIER

VCORE Input Bias

Current

VFB = 1.4V

0.3

µA

COMP Output Sink

Current

Vcomp = 2.5V VFB = 5V

100

µA

COMP Output Source

Current

Vcomp = 4V VFB = 0V

0.5

mA

VFB Input Bias Source

Current

VFB = 1.4V VDAC = 1.3V

1.0

µA

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