MAX8588ETM datasheet(3/31 Pages) MAXIM

Part #	MAX8588ETM

Description	High-Efficiency, Low-IQ PMIC with Dynamic Core for PDAs and Smartphones

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Manufacturer	MAXIM [Maxim Integrated Products]

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High-Efficiency, Low-IQ PMIC with

Dynamic Core for PDAs and Smartphones

_______________________________________________________________________________________

3

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

ILX1 = -180mA

0.18

0.3

p-Channel On-Resistance

ILX1 = -180mA, VPV1 = 2.6V

0.21

0.35

Ω

ILX1 = 180mA

0.13

0.225

n-Channel On-Resistance

ILX1 = 180mA, VPV1 = 2.6V

0.15

0.25

Ω

Current-Sense Transresistance

0.5

V/A

p-Channel Current-Limit Threshold

-1.55

-1.80

-2.10

A

PWM Skip-Mode Transition Load

Current

Decreasing load current (Note 2)

30

mA

OUT1 Maximum Output Current

2.6V

≤ VPV1 ≤ 5.5V (Note 3)

1.3

A

LX1 Leakage Current

VPV1 = 5.5V, LX1 = GND or PV1, VON1 = 0V

-20

+0.1

+20

µA

SYNCHRONOUS-BUCK PWM REG2

FB2 = GND, 3.6V

≤ VPV2 ≤ 5.5V, load = 0 to 900mA

2.463

2.5

2.537

REG2 Voltage Accuracy

FB2 = IN, 3.6V

≤ VPV2 ≤ 5.5V, load = 0 to 900mA

3.25

3.3

3.35

V

FB2 Voltage Accuracy

FB2 used with external resistors, 3.6V

≤ VPV2 ≤ 5.5V,

load = 0 to 900mA

1.231

1.25

1.269

V

FB2 Input Current

FB2 used with external resistors, VFB2 = 1.25V

100

nA

Error-Amplifier Transconductance

Referred to FB

87

µS

Dropout Voltage

Load = 900mA (Note 1)

243

380

mV

ILX2 = -180mA

0.225

0.375

p-Channel On-Resistance

ILX2 = -180mA, VPV2 = 2.6V

0.26

0.425

Ω

ILX2 = 180mA

0.15

0.25

n-Channel On-Resistance

ILX2 = 180mA, VPV2 = 2.6V

0.17

0.275

Ω

Current-Sense Transresistance

0.7

V/A

p-Channel Current-Limit Threshold

-1.10

-1.275

-1.50

A

PWM Skip-Mode Transition Load

Current

Decreasing load current (Note 2)

30

mA

OUT2 Maximum Output Current

2.6V

≤ VPV2 ≤ 5.5V (Note 3)

0.9

A

LX2 Leakage Current

VPV2 = 5.5V, LX2 = GND or PV2, VON2 = 0V

-10

+0.1

+10

µA

SYNCHRONOUS-BUCK PWM REG3

REG3 Voltage Accuracy

REG3 from 0.7V to 1.475V,

2.6V

≤ VPV3 ≤ 5.5V

Load = 0 to 500mA

-1.5

+1.5

%

Error-Amplifier Transconductance

68

µS

ELECTRICAL CHARACTERISTICS (continued)

(VIN = 3.6V, VBKBT = 3.0V, VLBI = 1.1V, VDBI = 1.35V, circuit of Figure 5, TA = 0°C to +85°C, unless otherwise noted. Typical values

are at TA = +25°C.)

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