ISL9000IRBBZ datasheet(3/11 Pages) INTERSIL

Part #	ISL9000IRBBZ

Description	Dual LDO with Low Noise, Very High PSRR, and Low IQ

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Manufacturer	INTERSIL [Intersil Corporation]

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FN9217.3

August 2, 2006

Absolute Maximum Ratings

Thermal Information

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

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

Recommended Operating Conditions

Ambient Temperature Range (TA) . . . . . . . . . . . . . . .-40°C to +85°C

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

Thermal Resistance (Notes 1, 2)

θJA (°C/W) θJC (°C/W)

3x3 DFN Package . . . . . . . . . . . . . . . .

50

10

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

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

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

Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . +300°C

CAUTION: Stresses 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 sections of this specification is not implied.

NOTES:

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.

θ

JC, “case temperature” location is at the center of the exposed metal pad on the package underside. See Tech Brief TB379.

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 +85°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

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNITS

DC CHARACTERISTICS

Supply Voltage

VIN

2.3

6.5

V

Ground Current

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

IDD1

One LDO active

25

32

μA

IDD2

Both LDO active

42

52

μA

Shutdown Current

IDDS

@25°C

0.1

1.0

μA

UVLO Threshold

VUV+

1.9

2.1

2.3

V

VUV-

1.6

1.8

2.0

V

Regulation Voltage Accuracy

Initial accuracy at VIN = VO+0.5V, IO = 10mA, TJ = 25°C

-0.7

+0.7

%

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

350

475

600

mA

Dropout Voltage (Note 4)

VDO1

IO = 300mA; VO < 2.5V

300

500

mV

VDO2

IO = 300mA; 2.5V ≤ VO ≤ 2.8V

250

400

mV

VDO3

IO = 300mA; VO > 2.8V

200

325

mV

Thermal Shutdown Temperature

TSD+

145

°C

TSD-

110

°C

AC CHARACTERISTICS

Ripple Rejection (Note 3)

IO = 10mA, VIN = 2.8V(min), VO = 1.8V, CBYP = 0.1µF

@ 1kHz

90

dB

@ 10kHz

70

dB

@ 100kHz

50

dB

Output Noise Voltage (Note 3)

IO = 100µA, VO = 1.5V, TA = 25°C, CBYP = 0.1µF

BW = 10Hz to 100kHz

30

μVrms

DEVICE START-UP CHARACTERISTICS

Device Enable TIme

TEN

Time from assertion of the ENx pin to when the output voltage

reaches 95% of the VO(nom)

250

500

μs

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