ISL9441IRZ datasheet(6/20 Pages) INTERSIL

Part #	ISL9441IRZ

Description	Triple, 180째 Out-of-Phase, Step-Down

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Manufacturer	INTERSIL [Intersil Corporation]

Direct Link	http://www.intersil.com/cda/home

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6 / 20 page

6

FN6383.1

December 5, 2007

Absolute Maximum Ratings

Thermal Information

VCC_5V to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +6V

VCC_5V Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100mA

VIN to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +28V

BOOT/UGATE to PHASE . . . . . . . . . . . . . -0.3V to VCC_5V + 0.3V

PHASE1,2,3 and ISEN1, 2,3, to GND

. . . . . . . . . . . . . . . . . . . . .-5V (<100ns, 10µJ)/-0.3V (DC) to +28V

EN1,EN2, EN3, FB1, FB2, FB3, to GND . . -0.3V to VCC_5V + 0.3V

LDOFB, OCSET1, OCSET2, OCSET3,

LGATE1, LGATE2, LGATE3, to GND. . . -0.3V to VCC_5V + 0.3V

PGOOD, RST, G4 to GND . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +6V

ESD Rating

Human Body Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2000V

Machine Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .200V

Thermal Resistance (Typical)

θJA(oC/W)

θJC(oC/W)

32 Ld QFN Package (Note 1). . . . . . . .

34

3.5

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

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

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

Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below

http://www.intersil.com/pbfree/Pb-FreeReflow.asp

CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and

result in failures not covered by warranty.

NOTE:

1.

θ

JA is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See Tech

Brief TB379.

Electrical Specifications

Recommended operating conditions unless otherwise noted. Refer to Block Diagram and Typical Application

Schematic. VIN = 5.6V to 24V, or VCC_5V = 5V ±10%, C_VCC_5V = 4.7µF, TA = -40°C to +85°C (Note 5),

Typical values are at TA = +25°C, unless otherwise specified.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNITS

VIN SUPPLY

Input Voltage Range

5.6

12.0

24.0

V

Input Voltage Range

VIN = VCC_5V (Note 6)

4.5

5.0

5.6

V

VCC_5V SUPPLY (Note 2)

Operation Voltage

4.5

5.0

5.6

V

Internal LDO Output Voltage

VIN > 5.6V, IL = 60mA

4.5

5.0

5.5

V

Maximum Supply Current of Internal LDO

VIN = 12V

60

mA

VIN SUPPLY CURRENT

Shutdown Current (Note 3)

EN = EN2 = EN3 = 0, VIN =12V

50

100

µA

Operating Current (Note 4)

3

5

mA

REFERENCE SECTION

Internal Reference Voltage

Across specified temperature range

0.8

V

Reference Voltage Accuracy

Across specified temperature range

-1

+1

%

PWM CONTROLLER ERROR AMPLIFIERS

DC Gain (Note 5)

88

dB

Gain-BW Product (Note 5)

15

MHz

Slew Rate (Note 5)

2.0

V/µs

PWM REGULATOR

Switching Frequency (ISL9440, ISL9441)

260

300

340

kHz

Maximum Duty Cycle (ISL9440, ISL9441)

93

%

Minimum Duty Cycle (ISL9440, ISL9441)

3%

Switching Frequency (ISL9440A)

522

600

678

kHz

Maximum Duty Cycle (ISL9440A)

86

%

ISL9440, ISL9440A, ISL9441

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