5-Output PMICs with DC-DC Core Supply for

Low-Cost PDAs

6

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PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

SDIG Output Voltage

3.218

3.383

V

SDIG Current Limit

485

900

mA

300

SDIG Dropout Voltage

1250

mV

SDIG Reverse Leakage Current

15

µA

COR2 Output Voltage

1.750

1.845

V

COR2 Current Limit

60

150

mA

COR1 PWM BUCK

CV = high (MAX8594A)

1.743

1.855

CV = high (MAX8594) or CV = low (MAX8594A)

1.255

1.340

COR1 Output Voltage Accuracy

CV = low (MAX8594)

0.969

1.023

V

1.34

p-Channel On-Resistance

1.58

Ω

0.46

n-Channel On-Resistance

0.53

Ω

p-Channel Current-Limit

Threshold

-0.460

-0.925

A

n-Channel Current-Limit

Threshold

-0.46

-0.92

A

LXC Leakage Current

-10

+10

µA

REF AND RESET OUTPUT

REF Voltage Accuracy

1.229

1.264

V

REF Line Regulation

3

mV

REF Load Regulation

3

mV

CV = low or CV = high (MAX8594),

CV = low (MAX8594A)

88.00

93.25

RS Deassert Threshold for COR1

Rising (Note 1)

CV = high (MAX8594A)

67.0

72.7

%

RS Deassert Delay

10

30

ms

LCD

LXL Voltage Range

28

V

LXL Current Limit

L1 = 10µH

180

280

mA

LXL Leakage Current

2

µA

Maximum LXL On-Time

2

4

µs

0.8

1.2

Minimum LXL Off-Time

3.9

6.0

µs

LFB Feedback Threshold

1.223

1.270

V

LFB Input Bias Current

50

nA

SW Off-Leakage Current

1

µA

SW PMOS On-Resistance

1.5

Ω

ELECTRICAL CHARACTERISTICS (continued)