ISL6236AIRZ-T View Datasheet(PDF) - Intersil

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Description

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ISL6236AIRZ-T

High-Efficiency, Quad-Output, Main Power Supply Controllers for Notebook Computers

Intersil 

ISL6236A

Absolute Voltage Ratings

VIN, EN LDO to GND. . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +27V

BOOT to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +33V

BOOT to PHASE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +6V

VCC, EN, SKIP#, TON,

PVCC, POK to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +6V

LDO, FB1, REFIN2, LDOREFIN to GND . . . -0.3V to (VCC + 0.3V)

OUT, SECFB, VREF3, REF to GND . . . . . . . . -0.3V to (VCC + 0.3V

UGATE to PHASE . . . . . . . . . . . . . . . . . . . . -0.3V to (PVCC + 0.3V)

ILIM to GND . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to (VCC + 0.3V)

LGATE, BYP to GND . . . . . . . . . . . . . . . . . . -0.3V to (PVCC + 0.3V)

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

LDO, REF, VREF3 Short Circuit to GND . . . . . . . . . . . . Continuous

VCC Short Circuit to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1s

LDO Current (Internal Regulator) Continuous . . . . . . . . . . . . 100mA

LDO Current (Switched Over to OUT1) Continuous . . . . . . +200mA

Thermal Information

Thermal Resistance (Typical)

θJA (°C/W)

θJC (°CW)

32 Ld QFN (Notes 1, 2) . . . . . . . . . . . . 32

3.0

Operating Temperature Range . . . . . . . . . . . . . . . .-40°C to +100°C

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

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

CAUTION: Stress 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 section of this specification is not implied.

NOTE:

1. θJA 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.

2. For θJC, the “case temp” location is the center of the exposed metal pad on the package underside.

Electrical Specifications

PARAMETER

No load on LDO, OUT1, OUT2, VREF3, and REF, VIN = 12V, EN2 = EN1 = VCC, VBYP = 5V, PVCC = 5V,

VEN_LDO = 5V, TA = -40°C to +100°C, unless otherwise noted. Typical values are at TA = +25°C.

CONDITIONS

MIN

TYP

MAX UNITS

MAIN SMPS CONTROLLERS

VIN Input Voltage Range

3.3V Output Voltage in Fixed Mode

1.05V Output Voltage in Fixed Mode

LDO in regulation

5.5

25

V

VIN = LDO, VOUT1 <4.43V

4.5

5.5

V

VIN = 4.5V to 25V, REFIN2 > (VCC - 1V), SKIP# = 5V

3.285 3.330 3.375

V

VIN = 4.5V to 25V, 3.0 < REFIN2 < (VCC - 1.1V),

SKIP# = 5V

1.038

1.05

1.062

V

1.5V Output Voltage in Fixed Mode

5V Output Voltage in Fixed Mode

FB1 in Output Adjustable Mode

REFIN2 in Output Adjustable Mode

SECFB Voltage

SMPS1 Output Voltage Adjust Range

VIN = 4.5V to 25V, FB1 = VCC, SKIP# = 5V

VIN = 5.5V to 25V, FB1 = GND, SKIP# = 5V

VIN = 4.5V to 25V

VIN = 4.5V to 25V

VIN = 4.5V to 25V

SMPS1

1.482 1.500 1.518

V

4.975 5.050 5.125

V

0.693 0.700 0.707

V

0.7

2.50

V

1.920

2.00

2.080

V

0.70

5.50

V

SMPS2 Output Voltage Adjust Range

SMPS2

0.50

2.50

V

SMPS2 Output Voltage Accuracy

(Referred for REFIN2)

REFIN2 = 0.7V to 2.5V, SKIP# = VCC

-1.0

1.0

%

DC Load Regulation

Either SMPS, SKIP# = VCC, 0A to 5A

-0.1

%

Either SMPS, SKIP# = REF, 0A to 5A

-1.7

%

Either SMPS, SKIP# = GND, 0A to 5A

-1.5

%

Line Regulation

Either SMPS, 6V < VIN < 24V

0.005

%/V

Current-Limit Current Source

Temperature = +25°C

4.75

5

5.25

µA

ILIM Adjustment Range

0.2

2

V

Current-Limit Threshold (Positive, Default) ILIM = VCC, GND - PHASE

(No temperature compensation)

93

100

107

mV

3

FN6453.0

March 14, 2007

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