ISL9021AIRUFZ-T7A datasheet(5/12 Pages) RENESAS

Part #	ISL9021AIRUFZ-T7A

Description	250mA Single LDO with Low IQ, Low Noise and High PSRR LDO

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Manufacturer	RENESAS [Renesas Technology Corp]

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5 / 12 page

ISL9021A

FN7845 Rev 3.00

Page 5 of 12

December 20, 2012

Absolute Maximum Ratings

Thermal Information

Supply Voltage (VIN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +6.5V

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) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5 to 5.5V

ESD Rating

Human Body Model. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5000V

Machine Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250V

Charged Device Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2200V

Latch-Up Passed at +85°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100mA

Thermal Resistance (Typical)

JA (°C/W) JC (°C/W)

4 Ball WLCSP (Note 5) . . . . . . . . . . . . . . . . .

135.64

N/A

6 Lead µTDFN (Notes 6, 7) . . . . . . . . . . . . .

230

93

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

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

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

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

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

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.

JA 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.

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

7. For

JC, the “case temp” location is taken at the package top center.

Electrical Specifications TA = -40°C to +85°C; VIN = (VO + 0.5V) to 5.5V with a minimum VIN of 1.5V; CIN = 1µF; CO = 1µF. Boldface

limits apply over the operating temperature range, -40°C to +85°C.

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

(Note 10)

TYP

MAX

(Note 10)

UNIT

DC CHARACTERISTICS

Supply Voltage

VIN

1.5

5.5

V

VIN Undervoltage Lockout

Threshold

VUVLO+ VIN Rising

1.425

1.5

V

VUVLO-

VIN Falling

1.3

1.375

V

Ground Current

IDD

Output Enabled; IO = 0; VIN = 1.5V to 5.5V

35

50

µA

Shutdown Current

IDDS

VIN = 5.5V, EN = Low, IO = 0

0.1

1.0

µA

Output Voltage Accuracy

VIN = VO + 0.5V to 5.5V, IO = 1mA to 250mA, TJ = +25°C-0.8

+0.8

%

VIN = VO + 0.5V to 5.5V, IO = 1mA to 250mA, TJ = -40°C to +125°C

-1.8

+1.8

%

Maximum Output Current

IMAX

Continuous

250

mA

Internal Current Limit

ILIM

260

mA

Dropout Voltage (Notes 8, 9)

VDO

IO = 250mA; VO > 1.8V

150

250

mV

Thermal Shutdown Temperature

TSD

160

°C

Thermal Shutdown Hysteresis

20

°C

AC CHARACTERISTICS

Ripple Rejection (Note 8)

VIN = 4.5V, VO = 3.3V @ 1kHz

60

dB

VIN = 4.5V, VO = 3.3V @ 10kHz

75

dB

VIN = 4.5V, VO = 3.3V @ 1MHz

50

dB

Output Noise Voltage (Note 8)

VIN = 4.2V, TA = +25°C, BW = 10Hz to 100kHz, IO = 10mA

8.5*VO

µVRMS

DEVICE START-UP CHARACTERISTICS

Device Enable Time

tEN

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

reaches 95% of the VO (nom)

250

600

µs

LDO Soft-start Ramp Rate

tSSR

Slope of linear portion of LDO output voltage ramp during start-up

30

60

µs/V

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