ISL62391IRTZ datasheet(2/20 Pages) INTERSIL

2 / 20 page

FN6666.4

December 22, 2008

Absolute Maximum Ratings

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

VCC, PGOOD, PVCC to GND . . . . . . . . . . . . . . . . . . -0.3V to +7.0V

EN1, 2, LDO3EN . . . . . . . . . . . . . . . . . . . -0.3V to GND, VCC +0.3V

VOUT1,2, FB1,2, FSET1,2 . . . . . . . . . . . . -0.3V to GND, VCC +0.3V

PHASE1,2 to GND . . . . . . . . . . . . . . . . . . . . . . . (DC) -0.3V to +28V

(<100ns Pulse Width, 10µJ) . . . . . . . . . . . . . . . . . . . . . . . . . -5.0V

BOOT1,2 to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +33V

BOOT1,2 to PHASE1,2 . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +7V

UGATE1,2 . . . . . . . . . . . . (DC) -0.3V to PHASE1,2, BOOT1,2 +0.3V

(<200ns Pulse Width, 20µJ) . . . . . . . . . . . . . . . . . . . . . . . . -4.0V

LGATE1,2. . . . . . . . . . . . . . . . . . . (DC) -0.3V to GND, PVCC +0.3V

(<100ns Pulse Width, 4µJ) . . . . . . . . . . . . . . . . . . . . . . . . . . -2.0V

LDO3 Current (Internal Regulator) Continuous . . . . . . . . . +100mA

Thermal Information

Thermal Resistance (Typical, Notes 1, 2)

θJA (°C/W) θJC (°C/W)

TQFN Package . . . . . . . . . . . . . . . . . .

3.5

Junction Temperature Range. . . . . . . . . . . . . . . . . . -55

°C to +150°C

Operating Temp. Range (ISL62391(2)IRTZ) . . . . . . -40

°C to +100°C

Operating Temp. Range (ISL62391(2)HRTZ) . . . . . -10

°C to +100°C

Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . -65

°C to +150°C

Pb-Free Reflow Profile. . . . . . . . . . . . . . . . . . . . . . . . .see link below

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

Recommended Operating Conditions

Ambient Temperature Range (ISL62391(2)IRTZ) . . -40°C to +100°C

Ambient Temperature Range (ISL62391(2)HRTZ) . -10°C to +100°C

Supply Voltage (VIN to GND) . . . . . . . . . . . . . . . . . . . . 5.5V to 25V

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.

NOTES:

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

2. For

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

Electrical Specifications

Circuit of Figure 1 and Figure 2, LDO3, OUT1, OUT2, and REF, VIN = 12V, EN = VCC, TA = -40°C to +100°C,

unless otherwise noted. Typical values are at TA = +25°C. Parameters with MIN and/or MAX limits are 100%

tested at +25°C, unless otherwise specified. Temperature limits established by characterization and are not

production tested.

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

LINEAR REGULATOR

VIN Power-on Reset

Rising Threshold

5.3

5.4

5.5

Hysteresis

150

VIN Shutdown Supply Current

EN1 = EN2 = LDO3EN = 0

µA

VIN Standby Supply Current

EN1 = EN2 = 0, LDO3EN = 1

150

250

µA

LDO3 Output Voltage

I_LDO3 = 100mA (Note 3)

3.25

3.3

3.35

I_LDO3 = 0mA

3.25

3.3

3.35

LDO3 Short-Circuit Current

LDO3 = GND (Note 3)

180

LDO3EN Input Voltage

Rising edge

1.1

2.5

Falling edge

0.94

1.06

LDO3EN Input Leakage Current

LDO3EN = 0 or VCC

-1

µA

LDO3 Discharge ON-resistance

LDO3EN = 0

PVCC POR Threshold (Note 3)

4.2

SMPS2 to PVCC Switchover Threshold

4.63

4.8

4.93

SMPS2 to PVCC Switchover Resistance (Note 3)

VOUT2 to PVCC, VOUT2 = 5V

2.5

3.2

MAIN SMPS CONTROLLERS

VCC Input Bias Current

EN1 = EN2 = 1, FB1 = FB2 = 0.65V

VCC POR Threshold

Rising Edge

4.33

4.50

4.55

Rising Edge (ISL62391(2)HRTZ, TA = -10°C to

+100°C)

4.35

4.50

4.55

Falling Edge

4.08

4.20

4.30

Falling Edge (ISL62391(2)HRTZ, TA = -10°C to

+100°C)

4.10

4.20

4.30

Reference Voltage

0.6

Regulation Accuracy

VOUT regulated to 0.6V

-1

ISL62391, ISL62392

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