ISL6232 查看數據表（PDF） - Intersil

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ISL6232

High Efficiency System Power Supply Controller for Notebook Computers

Intersil 

ISL6232

Absolute Maximum Ratings

SHDN#, VIN to GND . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +28V

BOOT3, BOOT5 to GND . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +33V

VCC, LDO3, LDO5, CS3, CS5, OUT3, OUT5, COMP3, COMP5,

FB3, FB5, SKIP#, FREQ, PGOOD, EN3, EN5, REF

to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +6V

BOOT3 to PHASE3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +6V

BOOT5 to PHASE5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +6V

UGATE3 to PHASE3 . . . . . . . . . . . . . . . . . . -0.3V to (BOOT3+0.3V)

UGATE5 to PHASE5 . . . . . . . . . . . . . . . . . . -0.3V to (BOOT5+0.3V)

LGATE3 to GND . . . . . . . . . . . . . . . . . . . . . . -0.3V to (LDO5+0.3V)

LGATE5 to PGND . . . . . . . . . . . . . . . . . . . . . -0.3V to (LDO5+0.3V)

PHASE3 to PGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-1V to 28V

PHASE5 to PGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -1V to 28V

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

ESD Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Class 1

Thermal Information

Thermal Resistance

θJA (°C/W)

QSOP Package (Note 1) . . . . . . . . . . . . . . . . . . . . .

77

Junction Temperature Range. . . . . . . . . . . . . . . . . .-55°C to +150°C

Operating Temperature Range . . . . . . . . . . . . . . . -10°C to +100°C

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

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

CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the

device at these or any other conditions above those indicated in the operational sections of this specification is not implied.

NOTE:

1. θJA is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.

Electrical Specifications VIN = 12V, SHDN# = EN3 = EN5 = VCC, SKIP# = FB3 = FB5 = 0V, ILDO5 = 0mA, ILDO3 = 0mA, CREF = 0.22µF,

CLDO3 = CLDO5 = 4.7µF, TA = -10°C to +100°C, unless otherwise noted.

PARAMETER

TEST CONDITIONS

MIN

TYP MAX UNITS

SMPS CONTROLLER

VIN Voltage Range

(Note 3)

5.5

25

V

3.3V Fixed Output Voltage

VIN = 5.5V to 25V, FB3 = 0V, SKIP# = VCC

3.250 3.300 3.350

V

5.0V Fixed Output Voltage

VIN = 5.5V to 25V, FB5 = 0V, SKIP# = VCC

5.023 5.100 5.177

V

FB3/FB5 at Programmable Mode

VIN = 5.5V to 25V, SKIP# = VCC

0.788 0.800 0.812

V

FB3/FB5 Programmable Mode Threshold

Voltage

0.1

0.2

0.3

V

OUT3/OUT5 Voltage Range at Programmable (Note 3)

Mode

0.8

5.5

V

Line Regulation

VIN = 5.5V to 25V @ OUT3

VIN = 5.5V to 25V @ OUT5

0.005

%/V

SKIP# = VCC, IOUT = 0A to 5A

-0.1

Load Regulation

SKIP# = 0V, IOUT = 0A to 5A

-0.5

%

SKIP# = REF, IOUT = 0A to 5A

-0.5

OUT3/OUT5 Input Leakage Current

LDO5 = OUT = 5.5V, EN3 = EN5 = 0V

0.1

1

µA

CS3/CS5 Input Leakage Current

LDO5 = CS = 5.5V, EN3 = EN5 = 0V

0.1

1

µA

FB3/FB5 Input Bias Current

FB = 0.75V

0.01

0.1

µA

COMP3/COMP5 Trans-Conductance

COMP = 2.5V

50

100

150

µS

Positive Current Limit Threshold

CS-OUT

64

80

96

mV

Pulse Skipping Current Threshold

CS-OUT

3

13

26

mV

Zero Crossing Current Threshold

CS-OUT

6

mV

Negative Current Limit Threshold

CS-OUT

-20

mV

Operating Frequency

VIN = 5.5V to 25V

255

300

345

kHz

Maximum Duty Cycle

94

%

OUT3/OUT5 Soft-Start Period

EN = VCC

1.0

1.2

1.4

ms

3

FN9116.0

April 18, 2005

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