PRODUCT DATABOOK 1996/1997
0.5A LOW DROPOUT POSITIVE REGULATORS
PR E L I M I N A RY D ATA S H E E T
LX8415-xx
R E C O M M E N D E D O P E R AT I N G C O N D I T I O N S (Note 2)
Parameter
Symbol
Recommended Operating Conditions
Min.
Typ.
Max.
Units
Input Voltage
Operating Voltage
LX8415-xx
7
V
Operating Ambient Temperature Range
Note 2. Range over which the device is functional.
0
125
°C
ELECTRICAL CHARACTERISTICS
(Unless otherwise specified: 0°C ≤ T ≤ 125°C, I = 0.5A for the LX8415-xx.)
J
MAX
Parameter
Symbol
Test Conditions
LX8415-xx
Units
Min. Typ. Max.
e Reference Voltage
LX8415-00
VREF
t Output Voltage
LX8415-25
LX8415-33
Line Regulation
le (Note 3)
Load Regulation
(Note 3)
Dropout Voltage
(Note 4)
LX8415-00
LX8415-25 / 33
LX8415-00
LX8415-25 / 33
LX8415-xx
Current Limit
LX8415-xx
o Minimum Load Current (Note 5)
IOUT (MAX)
Quiescent Current
LX8415-25 / 33
Thermal Regulation
Ripple Rejection
s Adjust Pin Current
LX8415(A)-00
IOUT = 10mA, (VIN - VOUT) = 2V, TJ = 25°C
10mA ≤ IOUT ≤ IMAX, 1.5V ≤ (VIN - VOUT) ≤ 6V
IOUT = 10mA, VIN = 5V, TJ = 25°C
0mA ≤ IOUT ≤ IMAX, 4.75V ≤ VIN ≤ 6V
IOUT = 10mA, VIN = 5V, TJ = 25°C
0mA ≤ IOUT ≤ IMAX, 4.75V ≤ VIN ≤ 6V
IOUT = 10mA, 1.5V ≤ VIN - VOUT ≤ 6V
IOUT = 0mA, 4.75V ≤ VIN ≤ 6V
(VIN - VOUT) = 3V, 10mA ≤ IOUT ≤ IMAX
VIN = 4.75V, 0mA ≤ IOUT ≤ IMAX
IOUT = 100mA
IOUT = 300mA
IOUT = IMAX
(VIN - VOUT) ≥ 1.3V, TJ = 25°C
VIN ≤ 6V, (LX8415-00)
VIN ≤ 6V
TA = 25°C, 30ms Pulse
fRIPPLE = 120Hz, (VIN - VOUT) = 3V, VRIPPLE = 1Vp - p
1.238
1.225
2.475
2.450
3.267
3.235
500
60
1.250
1.250
2.500
2.500
3.300
3.300
0.05
1
0.15
10
1.05
1.10
1.15
950
0.5
4.5
0.08
75
60
1.262
1.275
2.525
2.550
3.333
3.365
0.7
7
0.5
20
1.20
1.25
1.30
10
10
0.2
130
V
V
V
V
V
V
%
mV
%
mV
V
V
V
mA
mA
mA
%/W
dB
µA
Adjust Pin Current Change LX8415(A)-00
Temperature Stability
10mA ≤ IOUT ≤ IMAX, 1.5V ≤ (VIN - VOUT) ≤ 6V
0.2
5
µA
0.5
%
Long Term Stability
RMS Output Noise
TA = 125°C, 1000Hrs
(% of VOUT), 10Hz ≤ f ≤ 10kHz
0.3
%
0.003
%
b Notes: 3. See thermal regulation specification for changes in output voltage due to heating effects. Load regulation and line regulation are measured at a constant junction
temperature by low duty cycle pulse testing.
4. Dropout voltage is specified over the full output current range of the device. Dropout voltage is defined as the minimum input/output differential measured at the
specified output current. Test points and limits are also shown on the Dropout Voltage Curve.
O 5. Minimum load current is defined as the minimum output current required to maintain regulation.
Copyright © 1999
Rev. 0.5
3