Dynamic Core for PDAs and Smart Phones

2

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ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

BKBT, V7, SLP, SRAD, PWM3 to GND...............-0.3V to +6V

REF, CC_, ON_, FB_, DBI, LBI, V1, V2, RAMP, BYP,

PV1, PV2, PV3, SLPIN to IN...................................-0.3V to +0.3V

PV1 to PG1 ............................................................-0.3V to +6.0V

PV2 to PG2 ............................................................-0.3V to +6.0V

PV3 to PG3 ............................................................-0.3V to +6.0V

LX1 Continuous Current....................................-1.30A to +1.30A

LX2 Continuous Current........................................-0.9A to +0.9A

LX3 Continuous Current........................................-0.9A to +0.9A

PG1, PG2, PG3 to GND.........................................-0.3V to +0.3V

V1, V2, V4, V5, V6 Output Short-Circuit Duration.......Continuous

6mm x 6mm 40-Pin Thin QFN

(derate 26.3mW/°C above +70°C) ...........................2105mW

7mm x 7mm 48-Pin Thin QFN

(derate 26.3mW/°C above +70°C) ...........................2105mW

Operating Temperature Range ...........................-40°C to +85°C

Junction Temperature ......................................................+150°C

Storage Temperature Range .............................-65°C to +150°C

Lead Temperature (soldering, 10s) .................................+300°C

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

PV1, PV2, PV3, SLPIN, IN Supply

Voltage Range

PV1, PV2, PV3, IN, and SLPIN must connect together

externally

2.6

5.5

V

IN45, IN6 Supply Voltage Range

2.4

5.5

V

2.25

2.40

2.55

IN Undervoltage-Lockout (UVLO)

Threshold

2.200

2.35

2.525

V

MAX1586

32

5

MAX1586

130

REG1 and REG2 on in

switch mode, REG3 off

MAX1587

130

MAX1586

60

REG1 and REG2 on in

sleep mode, REG3 off

MAX1587

60

MAX1586

225

Quiescent Current

All REGs on

MAX1587

200

µA

ON1 = 0

4

BKBT Input Current

ON1 = IN

0.8

µA

REF Output Voltage

0 to 10µA load

1.2375

1.25

1.2625

V

SYNCHRONOUS-BUCK PWM REG1

REG1 Voltage Accuracy

FB1 = GND, 3.6V

3.25

3.3

3.35

V

FB1 Voltage Accuracy

FB1 used with external resistors, 3.6V

load = 0 to 1300mA

1.231

1.25

1.269

V

FB1 Input Current

FB1 used with external resistors

100

nA

Error-Amplifier Transconductance

Referred to FB

87

µS

Load = 800mA

180

280

Dropout Voltage (Note 1)

Load = 1300mA

293

450

mV