MAX863 datasheet(2/16 Pages) MAXIM

2 / 16 page

Dual, High-Efficiency, PFM, Step-Up

DC-DC Controller

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ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VDD = +5V, ILOAD = 0mA, TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.)

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.

VDD to GND ............................................................-0.3V to +12V

PGND to GND .......................................................-0.3V to +0.3V

SHDN1, SHDN2, SENSE1, LBO to GND ................-0.3V to +12V

EXT1, EXT2 to PGND..................................-0.3V to (VDD + 0.3V)

FB1, FB2, CS1, CS2, SEL,

LBI, BOOT to GND.................................-0.3V to (VDD + 0.3V)

LBO Continuous Output Current.........................................15mA

EXT1, EXT2 Continuous Output Current .............................50mA

Continuous Power Dissipation (TA = +70°C)

QSOP (derate 8.30mW/°C above +70°C) ...................667mW

Operating Temperature Range

MAX863EEE ....................................................-40°C to +85°C

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

Storage Temperature Range .............................-65°C to +160°C

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

VDD = OUT1 = BOOT (Note 1)

CONDITIONS

1.5

UNITS

MIN

TYP

MAX

SYMBOL

PARAMETER

(Note 2)

2.7

VDD

VDD Input Voltage

SHDN1 = VDD, SHDN2 = GND,

measured from VDD

µA

IDD

Quiescent Current

SHDN1 = SHDN2 = VDD, measured from VDD

VIN = 2.7V to 5V, VOUT1 = 5V,

ILOAD = 300mA, Figure 2

mV/V

Line Regulation

VIN = 3.3V, VOUT1 = 5V,

ILOAD = 0mA to 500mA, Figure 2

mV/A

Load Regulation

IFB, ILBI

FB1, FB2, LBI Input Current

VDD = 1.5V

0.7 x VDD

VIH

2.7V < VDD < 11V

1.6

SHDN1, SHDN2, SEL, BOOT

Input High Voltage

100

115

VCS

CS1, CS2 Threshold Voltage

µs

17.5

Logic input = VDD or GND

tON

Maximum Switch On-Time

µA

CS1, CS2 Input Current

µA

SHDN1, SHDN2, SEL, BOOT

Input Current

1.225

1.25

1.275

VFB, VLBI

FB1, FB2, LBI

Threshold Voltage (Note 4)

CLOAD = 1nF, 10% to 90%

EXT Rise/Fall Time (Note 5)

µs

1.6

2.4

tOFF

Minimum Switch Off-Time

FB1 = GND

4.85

5.15

VOUT1

OUT1 Output Voltage

(Note 3)

FB1 = VDD

3.2

3.3

3.4

VDD = 1.5V

0.2 x VDD

VIL

2.7V < VDD < 11V

0.4

SHDN1, SHDN2, SEL, BOOT

Input Low Voltage

SHDN1 = SHDN2 = GND

µA

IDD, SHDN

Shutdown Current

Ω

EXT On-Resistance

VLBO = 11V, VLBI > 1.275V

µA

ILBO

LBO Leakage Current

ILBO,SINK = 1mA, VLBI < 1.225V

0.1

0.4

VLBO,L

LBO Low Level

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