ISL78310 datasheet(5/13 Pages) INTERSIL

5 / 13 page

ISL78310

FN7810.0

February 17, 2011

Absolute Maximum Ratings

Thermal Information

VIN relative to GND (Note 6) . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +6.5V

VOUT relative to GND (Note 6). . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +6.5V

PG, ENABLE, SENSE/ADJ, SS

Relative to GND (Note 6) . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +6.5V

Recommended Operating Conditions (Notes 9, 10)

Junction Temperature Range (TJ) (Note 9) . . . . . . . . . . . .-40°C to +125°C

VIN relative to GND. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.2V to 6V

VOUT range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 800mV to 5V

PG, ENABLE, SENSE/ADJ, SS relative to GND . . . . . . . . . . . . . . . 0V to +6V

PG Sink Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <10mA

Thermal Resistance . . . . . . . . . . . . . . . . . . . .

θJA (°C/W) θJC (°C/W)

10 Ld DFN Package (Notes 7, 8) . . . . . . . .

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

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

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

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

ESD Rating

Human Body Model (Tested per JESD22-A114E) . . . . . . . . . . . . . . . . 2500V

Machine Model (Tested per JESD-A115-A) . . . . . . . . . . . . . . . . . . . . . 250V

Charge Device Model (Tested per JESD22-C101C). . . . . . . . . . . . . . 1000V

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:

6. Absolute maximum voltage rating is defined as the voltage applied for a lifetime average duty cycle above 6V of 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.

8. For

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

9. Extended operation at these conditions may compromise reliability. Exceeding these limits will result in damage. Recommended operating conditions

define limits where specifications are guaranteed.

10. Electromigration specification defined as lifetime average junction temperature of +110°C where max rated DC current = lifetime average current.

Electrical Specifications Unless otherwise noted, VIN = VOUT + 0.4V, VOUT = 1.8V, CIN = COUT = 10µF, TJ = +25°C, ILOAD = 0A.

Applications must follow thermal guidelines of the package to determine worst case junction temperature. Please refer to “ISL78310 Schematic

Block Diagram” on page 4 and Tech Brief TB379. Boldface limits apply over the operating temperature range, -40°C to +125°C.

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

(Note 11)

TYP

MAX

(Note 11)

UNITS

DC CHARACTERISTICS

DC Output Voltage Accuracy

VOUT

VOUT Options: 0.8V, 1.2V, 1.5V and 1.8V

2.2V

≤ VIN < 3.6V; 0A < ILOAD ≤ 1A

-1.8

0.2

1.8

VOUT Options: 2.5V, 3.3V and 5.0V

VOUT + 0.4V ≤ VIN ≤ 6V; 0A < ILOAD < 1A

-1.8

0.2

1.8

Feedback Pin (ADJ Option Only)

VADJ

2.2V

≤VIN ≤ 6V, 0A < ILOAD < 1A

491

500

509

DC Input Line Regulation

ΔVOUT/

ΔVIN

VOUT + 0.5V < VIN < 5V

DC Output Load Regulation

ΔVOUT/

ΔIOUT

0A < ILOAD < 1A, All voltage options

-1

Feedback Input Current

VADJ = 0.5V

0.01

µA

Ground Pin Current

ILOAD = 0A, 2.2V < VIN < 6V

ILOAD = 1A, 2.2V < VIN < 6V

Ground Pin Current in Shutdown

ISHDN

ENABLE Pin = 0V, VIN = 6V

0.2

µA

Dropout Voltage (Note 12)

VDO

ILOAD = 1A, VOUT = 2.5V

130

212

Output Short Circuit Current

OCP

VOUT = 0V, 2.2V < VIN < 6V

1.75

Thermal Shutdown Temperature

TSD

2.2V < VIN < 6V

160

°C

Thermal Shutdown Hysteresis

(Rising Threshold)

TSDn

2.2V < VIN < 6V

°C

AC CHARACTERISTICS

Input Supply Ripple Rejection

PSRR

f = 1kHz, ILOAD = 1A; VIN = 2.2V

f = 120Hz, ILOAD = 1A; VIN = 2.2V

Output Noise Voltage

ILOAD = 1A, BW = 10Hz < f < 100kHz

µVRMS

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