SPX3819 Datasheet, PDF (2/13 Pages) Sipex Corporation – 500 mA, Low-Noise LDO Voltage Regulator

ABSOLUTE MAXIMUM RATINGS
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
RECOMMENDED OPERATING CONDITIONS
Input Voltage ................................................................... +2.5V to+16V
Operating Junction Temperature Range ................... -40°C to +125°C
Enable Input Voltage ........................................................... 0.0V to V_IN
ELECTRICAL CHARACTERISTICS
T_J=25°C, V_OUT + 1V, for 1.2V Option V_IN=V_OUT + 1.2V I_L=100µA, C_L=1µF, and V_ENABLE ≥ 2.4V. The ♦ denotes the
specifications which apply over full operating temperature range -40°C to +85°C, unless otherwise specified.
PARAMETER
MIN
TYP
MAX UNITS
♦ CONDITIONS
Output Voltage Tolerance
Output Voltage Temperature Coef.
Line Regulation
Load Regulation
Dropout Voltage
(V_IN-V_O)(Note 2)
Quiescent Current (I_GND)
Ground Pin Current (I_GND)
Ripple Rejection (PSRR)
Current Limit (I_LIMIT)
Output Noise (e_NO)
Input Voltage Level Logic Low (V_IL)
Input Voltage Level Logic High (V_IH)
ENABLE Input Current
Thermal Resistance (Note 1)
-1
+1
%
-2
+2
♦
57
ppm/°C
0.04
0.1
%/V
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
0.05
0.4
%
I_L = 0.1mA to 500mA
10
60
mV
I_L = 100µA
80
♦
125
175
mV
250
I_L = 50mA
♦
180
350
mV
450
I_L = 150mA
♦
340
550
mV
700
IL = 500mA
♦
0.05
3
µA
8
90
150
µA
190
V_ENABLE ≤ 0.4V
♦
V_ENABLE ≤ 0.25V
I_L = 100µA
♦
250
650
µA
900
I_L = 50mA
♦
1.0
2.0
mA
2.5
I_L = 150mA
♦
6.5
25.0
mA
30.0
I_L = 500mA
♦
70
dB
800
mA
950
V_OUT = 0.0V
♦
300
µV_RMS
I_L=10mA, C_L=1.0µF, C_IN=1µF,
(10Hz-100kHz)
40
µV_RMS
0.4
V
I_L=10mA, C_L=10µF, C_BYP =1µF,
C_IN =1µF, (10Hz-100kHz)
OFF
2
V
ON
0.01
2
µA
3
20
V_IL ≤ 0.4V
V_IH ≥ 2.0V
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
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.
July 2008 Rev F
SPX3819 500mA, Low Noise LDO Voltage Regulator
2
© 2008 Exar Corporation