ISL78302ARNWZ datasheet(4/11 Pages) INTERSIL

Part #	ISL78302ARNWZ

Description	Dual LDO with Low Noise, High Performance and Low IQ

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Manufacturer	INTERSIL [Intersil Corporation]

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ISL78302

4

FN7696.0

January 28, 2011

Absolute Maximum Ratings

Thermal Information

Supply Voltage (VIN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+7.1V

VO1, VO2 Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +3.6V

All Other Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to (VIN + 0.3)V

ESD Ratings

Human Body Model (Tested per JESD22-A114E) . . . . . . . . . . . . . . . . . . 3kV

Machine Model (Tested per JESD-A115-A) . . . . . . . . . . . . . . . . . . . . . 200V

Charge Device Model (Tested per JESD22-C101C). . . . . . . . . . . . . . . . . 2kV

Thermal Resistance (Notes 5, 6)

θJA (°C/W) θJC (°C/W)

10 Ld 3x3 DFN Package . . . . . . . . . . . . . . .

59

18.5

Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . . .-40°C to +125°C

Operating Temperature Range . . . . . . . . . . . . . . . . . . . . .-40°C to +105°C

Storage Temperature Range. . . . . . . . . . . . . . . . . . . . . . . .-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 (TA) . . . . . . . . . . . . . . . . . . .-40°C to +105°C

Supply Voltage (VIN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.3V to 6.5V

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:

5.

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.

6. For

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

Electrical Specifications Unless otherwise noted, all parameters are guaranteed over the operational supply voltage and

temperature range of the device as follows: TA = -40°C to +105°C; VIN = (VO + 0.5V) to 6.5V with a minimum VIN of 2.3V; CIN = 1µF; CO = 1µF;

CBYP = 0.01µF; CPOR = 0.01µF. Boldface limits apply over the operating temperature range, -40°C to +105°C.

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

(Note 8)

TYP

MAX

(Note 8)

UNITS

DC CHARACTERISTICS

Supply Voltage

VIN

2.3

6.5

V

Ground Current

Quiescent condition: IO1 = 0µA; IO2 = 0µA

IDD1

One LDO active

30

36

µA

IDD2

Both LDO active

47

55

µA

Shutdown Current

IDDS

0.3

2.1

µA

UVLO Threshold

VUV+

1.9

2.1

2.3

V

VUV-

1.6

1.8

2.0

V

Regulation Voltage Accuracy

VIN = VO + 0.5V to 5.5V, IO = 10µA to 300mA,

TJ = +25°C

-0.8

+0.8

%

VIN = VO + 0.5V to 5.5V, IO = 10µA to 300mA,

TJ = -40°C to +125°C

-1.8

+1.8

%

Maximum Output Current

IMAX

Continuous

300

mA

Internal Current Limit

ILIM

320

475

650

mA

Dropout Voltage (Note 7)

VDO

IO = 300mA

300

mV

IO = 150mA

150

250

mV

Thermal Shutdown Temperature

TSD+

145

°C

TSD-

110

°C

AC CHARACTERISTICS

Ripple Rejection

IO = 10mA, VIN = 2.8V(min), VO = 1.5V,

CBYP = 0.01µF

@ 1kHz

64

dB

@ 10kHz

51

dB

@ 100kHz

38

dB

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