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SPX3819R2-L-1-2 Datasheet(PDF) 2 Page - Exar Corporation

Part # SPX3819R2-L-1-2
Description  500mA, LOW-NOISE LDO VOLTAGE REGULATOR
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Manufacturer  EXAR [Exar Corporation]
Direct Link  http://www.exar.com
Logo EXAR - Exar Corporation

SPX3819R2-L-1-2 Datasheet(HTML) 2 Page - Exar Corporation

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July 2008 Rev F
SPX3819 500mA, Low Noise LDO Voltage Regulator
© 2008 Exar Corporation
Power Dissipation ...................................................... Internally Limited
Lead Temp. (Soldering, 5 Seconds) ........................................... 260°C
Operating Junction Temperature Range ................... -40°C to +125°C
Input Supply Voltage ........................................................ -20V to +20V
Enable Input Voltage ........................................................ -20V to +20V
PARAMETER
MIN
TYP
MAX
UNITS
CONDITIONS
Output Voltage Tolerance
-1
+1
%
-2
+2
Output Voltage Temperature Coef.
57
ppm/°C
Line Regulation
0.04
0.1
%/V
Load Regulation
0.05
0.4
%
IL = 0.1mA to 500mA
Dropout Voltage
10
60
mV
IL = 100µA
(VIN-VO)(Note 2)
80
125
175
mV
IL = 50mA
250
180
350
mV
IL = 150mA
450
340
550
mV
IL = 500mA
700
Quiescent Current (IGND)
0.05
3
µA
VENABLE ≤ 0.4V
8
VENABLE ≤ 0.25V
Ground Pin Current (IGND)
90
150
µA
IL = 100µA
190
250
650
µA
IL = 50mA
900
1.0
2.0
mA
IL = 150mA
2.5
6.5
25.0
mA
IL = 500mA
30.0
Ripple Rejection (PSRR)
70
dB
Current Limit (ILIMIT)
800
mA
VOUT = 0.0V
950
Output Noise (eNO)
300
µVRMS
IL=10mA, CL=1.0µF, CIN=1µF,
(10Hz-100kHz)
40
µVRMS
IL=10mA, CL=10µF, CBYP =1µF,
CIN =1µF, (10Hz-100kHz)
Input Voltage Level Logic Low (VIL)
0.4
V
OFF
Input Voltage Level Logic High (VIH)
2
V
ON
ENABLE Input Current
0.01
2
µA
VIL ≤ 0.4V
3
20
VIH ≥ 2.0V
Thermal Resistance (Note 1)
191
°C/W
SOT-23-5 / Junction to Ambient
128.4
°C/W
NSOIC-8 / Junction to Ambient
59
°C/W
DFN-8 / Junction to Ambient
ELECTRICAL CHARACTERISTICS
TJ=25°C, VOUT + 1V, for 1.2V Option VIN=VOUT + 1.2V IL=100µA, CL=1µF, and VENABLE ≥ 2.4V. The denotes the
specifications which apply over full operating temperature range -40
°C to +85°C, unless otherwise specified.
ABSOLUTE MAXIMUM RATINGS
NOTES
Note 1: The maximum allowable power dissipation is a function of maximum operating junction temperature, TJ(max) the junction to ambient thermal
resistance, and the ambient θJA, and the ambient temperature TA. The maximum allowable power dissipation at any ambient temperature is
given: PD(max) = (TJ(max)-TA)/θJA, exceeding the maximum allowable power limit will result in excessive die temperature; thus, the regulator will
go into thermal shutdown. The θJA of the SPX3819 is 220°C/W mounted on a PC board.
Note 2: Not applicable to output voltage 2V or less.
Input Voltage ................................................................... +2.5V to+16V
Operating Junction Temperature Range ................... -40°C to +125°C
Enable Input Voltage ........................................................... 0.0V to V
IN
RECOMMENDED OPERATING CONDITIONS
0.2
0.2
VIN = VOUT +1 to 16V and VEN
≤ 6V
VIN = VEN =VOUT +1
≤ 8V
VIN = VEN =VOUT +1 to 16V
Ta = 25°C to 85°C


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