SI91846DT-50-T1 datasheet(2/9 Pages) VISHAY

Part #	SI91846DT-50-T1

Description	150-mA Ultra Low-Noise LDO Regulator With Error Flag and Discharge Option

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Manufacturer	VISHAY [Vishay Siliconix]

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2 / 9 page

Si91845/6

Vishay Siliconix

www.vishay.com

2

Document Number: 71733

S-40591—Rev. B, 29-Mar-04

ABSOLUTE MAXIMUM RATINGS

Absolute Maximum Ratings

Input Voltage, VIN to GND

−6.0 to 6.5 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ERROR, VSD (See Detailed Description)

−0.3 V to VIN

. . . . . . . . . . . . . . . . . . . . . . .

Output Current, IOUT

Short Circuit Protected

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Output Voltage, VOUT

−0.3 V to VIN + 0.3 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Package Power Dissipation, (Pd)b

440 mW

. . . . . . . . . . . . . . . . . . . . . . . . . . .

Package Thermal Resistance, (qJA)a

180_C/W

. . . . . . . . . . . . . . . . . . . . . . . . .

Maximum Junction Temperature, TJ(max)

150_C

. . . . . . . . . . . . . . . . . . . . . . .

Storage Temperature, TSTG

−65_C to 150_C

. . . . . . . . . . . . . . . . . . . . . . . . . .

Notes

a.

Device mounted with all leads soldered or welded to PC board.

b.

Derate 5.5 mW/_C above TA = 70_C

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation

of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating

conditions for extended periods may affect device reliability.

RECOMMENDED OPERATING RANGE

Input Voltage, VIN

2 V to 6 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Input Voltage, VSD

0 V to VIN

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating Ambient Temperature, TA

−40_C to 85_C

. . . . . . . . . . . . . . . . . . . .

CIN = COUT = 1 mF (ceramic)

Maximum ESR of COUT: 0.4 W

SPECIFICATIONS

Test Conditions Unless Specified

TA = 25_C, VIN = VOUT(nom) + 1 V, IOUT = 1 mA,

Limits

−40 to 85_C

Parameter

Symbol

TA = 25_C, VIN = VOUT(nom) + 1 V, IOUT = 1 mA,

CIN = 1 mF, COUT = 1.0 mF, VSD = 1.5 V

Tempa Minb

Typc

Maxb

Unit

Input Voltage Range

VIN

Full

2

6

V

Output Voltage Accuracy

1 mA v IOUT v 150 mA

Room

−1.5

1

1.5

%

Output Voltage Accuracy

1 mA v IOUT v 150 mA

Full

−2.5

1

2.5

%

Line Regulation (VOUT v 3 V)

Full

−0.06

0.18

Line Regulation

(3.0 V < VOUT v3.6 V)

DVOUT 100

DVIN VOUT(nom)

From VIN = VOUT(nom) + 1 V to VOUT(nom) + 2 V

Full

0

0.3

%/V

Line Regulation (5-V Version)

IN

OUT(nom)

From VIN = 5.5 V to 6 V

Full

0

0.4

IOUT = 1 mA

Room

1

Dt V lt

dg

IOUT = 50 mA

Room

45

80

Dropout Voltaged, g

(VOUT(nom) w 2.6 V)

IOUT = 50 mA

Full

50

90

(VOUT(nom) w 2.6 V)

IOUT = 150 mA

Room

130

180

VIN − VOUT

IOUT = 150 mA

Full

220

mV

VIN VOUT

IOUT = 50 mA

Room

65

100

mV

Dropout Voltaged, g

IOUT = 50 mA

Full

120

Dropout Voltaged, g

(VOUT(nom) t 2.6 V, VIN w 2 V)

IOUT = 150 mA

Room

190

250

()

IOUT = 150 mA

Full

300

IOUT = 0 mA

Room

100

150

Ground Pin Currente, g

IOUT = 0 mA

Full

180

Ground Pin Currente, g

(VOUT(nom) v 3 V)

IOUT = 150 mA

Room

110

200

()

IGND

IOUT = 150 mA

Full

230

mA

IGND

IOUT = 0 mA

Room

110

170

mA

Ground Pin Currente, g

IOUT = 0 mA

Full

200

Ground Pin Currente, g

(VOUT(nom) u 3 V)

IOUT = 150 mA

Room

120

200

()

IOUT = 150 mA

Full

230

Peak Output current

IO(peak)

VOUT w 0.95 x VOUT(nom). tPW = 2 ms

Full

300

mA

Output Noise Voltage

eN

VNOM = 2.6 V, BW = 10 Hz to 100 kHz,

0 mA t IOUT t 150 mA

Room

30

mV(rms)

f = 1 kHz

Room

60

Ripple Rejection

DVOUT/DVIN

IOUT = 150 mA

f = 10 kHz

Room

40

dB

pp

j

OUT

IN

OUT

f = 100 kHz

Room

30

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