Rainbow-electronics MAX1587A Bedienungsanleitung PDF herunterladen (Seite 4)

MAX1586A/MAX1586B/MAX1587A

High-Efficiency, Low-I

PMICs with

Dynamic Core for PDAs and Smart Phones

4 _______________________________________________________________________________________

PARAMETER CONDITIONS

MIN TYP MAX

UNITS

LX3

= -180mA

0.225 0.375

P-Channel On-Resistance

LX2

= -180mA, V

PV3

= 2.6V

0.26 0.425

Ω

LX3

= 180mA

0.15 0.25

N-Channel On-Resistance

LX3

= 180mA, V

PV3

= 2.6V

0.17 0.275

Ω

Current-Sense Transresistance

1.25

V/A

P-Channel Current-Limit Threshold

-0.60 -0.7 -0.85

PWM Skip-Mode Transition Load

Current

Decreasing load current (Note 2) 30 mA

OUT3 Maximum Output Current 2.6V ≤ V

PV3_

≤ 5.5V (Note 3)

0.5

LX3 Leakage Current V

PV3_

= 5.5V, LX3 = GND or PV2, V

ON3

= 0V

-10 +0.1 +10

µA

LDOS V4, V5, V6, V1 SLEEP, V2 SLEEP, AND V7 OUTPUT

V4, V5, V6, V1 SLEEP, V2 SLEEP

Output Current

V7 Output Current

REG4 Output Voltage Load = 0.1 to 35mA

1.261 1.3 1.339

REG4 Noise With 1µF C

OUT

and 0.01µF C

BYP

µVRMS

REG5 Output Voltage Load = 0.1mA to 35mA

1.067 1.1 1.133

IN45, IN6 Input Voltage Range

2.4 5.5

0V setti ng ( ei ther ON 6 l ow or ser i al p r og r am m ed )

1.8V setting, load = 0.1mA to 35mA

1.746 1.8 1.854

2.5V setting, load = 0.1mA to 35mA

2.425 2.5 2.575

REG6 Output Voltage (POR Default

to 0V, Set by Serial Input)

MAX1586

3.0V setting, load = 0.1mA to 35mA

2.91 3.0 3.09

V1 on and in regulation

V7 Output Voltage

V1 off

BKBT

V1 and V2 SLEEP Output Voltage

Accuracy

Set to same output voltage as REG1 and REG2

-3.0 +3.0

V1 and V2 SLEEP Dropout Voltage LOAD = 20mA 75

150

V6 Dropout Voltage M AX 1586 3V m od e, l oad = 30m A, 2.5V m od e, l oad = 30m A

110 200

V7 Switch Voltage Drop LOAD = 20mA, V

BKBT

= V

= 3.0V

100 200

V4, V5, V6 Output Current Limit

90 mA

BKBT Leakage 1 µA

OSCILLATOR

PWM Switching Frequency

0.93

1.07

MHz

SUPERVISORY/MANAGEMENT FUNCTIONS

Rising

92 94.75

POK Trip Threshold (Note 4)

Falling

88.5 90.5 92.5

ELECTRICAL CHARACTERISTICS (continued)

= 3.6V, V

BKBT

= 3.0V, V

LBI

= 1.1V, V

DBI

= 1.35V, circuit of Figure 5, T

= 0°C to +85°C, unless otherwise noted. Typical values

are at T

= +25°C.)

1 2 3 4 5 6 7 8 9 ... 31 32

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