LTAGL LINER [Linear Technology], LTAGL Datasheet - Page 4

• Manufacturer Part Number: LTAGL
• Description: 100mA, Low Voltage, Very Low Dropout Linear Regulator
• Manufacturer: LINER [Linear Technology]

ELECTRICAL CHARACTERISTICS
LT3020/LT3020-1.2/
LT3020-1.5/LT3020-1.8
PARAMETER
Current Limit (Note 12)
Input Reverse Leakage Current
Reverse Output Current
(Notes 11, 13)
The
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The LT3020 regulators are tested and specified under pulse load
conditions such that T
T
characterization and correlation with statistical process controls.
Note 3: This IC includes overtemperature protection that is intended to
protect the device during momentary overload conditions. Junction
temperature will exceed 125°C when overtemperature protection is active.
Continuous operation above the specified maximum operating junction
temperature may impair device reliability.
Note 4: Maximum junction temperature limits operating conditions. The
regulated output voltage specification does not apply for all possible
combinations of input voltage and output current. Limit the output current
range if operating at maximum input voltage. Limit the input voltage range
if operating at maximum output current.
Note 5: Typically the LT3020 supplies 100mA output current with a 1V
input supply. The guaranteed minimum input voltage for 100mA output
current is 1.10V.
Note 6: The LT3020 is tested and specified for these conditions with an
external resistor divider (20k and 30.1k) setting V
resistor divider adds 10µA of output load current. The line regulation and
load regulation specifications refer to the change in the 0.2V reference
voltage, not the 0.5V output voltage. Specifications for fixed output voltage
devices are referred to the output voltage.
4
TYPICAL PERFOR A CE CHARACTERISTICS
A
= 25°C. Performance at –40°C and 125°C is assured by design,
250
225
200
175
150
125
100
●
75
50
25
0
denotes specifications which apply over the full operating temperature range, otherwise specifications are T
0
Typical Dropout Voltage
10
20
OUTPUT CURRENT (mA)
30
T
J
J
= 125°C
40
≈ T
T
J
50
A
= 25°C
. The LT3020 is 100% production tested at
60
70
CONDITIONS
V
V
V
V
LT3020-1.2
LT3020-1.5
LT3020-1.8
W
IN
IN
IN
OUT
80
= 10V, V
= V
= –10V, V
= 1.2V, V
90
3020 G01
OUT(NOMINAL)
U
100
OUT
OUT
OUT
IN
= 0V
= 0V
to 0.5V. The external
= 0V
V
V
V
OUT
OUT
OUT
+ 0.5V, ∆V
250
225
200
175
150
125
100
75
50
25
0
–50
= 1.2V, V
= 1.5V, V
= 1.8V, V
Dropout Voltage
V
OUT
–25
= 1.2V
OUT
IN
IN
IN
= –5%
= 0V
= 0V
= 0V
0
TEMPERATURE (°C)
25
Note 7: Dropout voltage is the minimum input to output voltage differential
needed to maintain regulation at a specified output current. In dropout the
output voltage equals: (V
Note 8: GND pin current is tested with V
source load. The device is tested while operating in its dropout region.
This condition forces the worst-case GND pin current. GND pin current
decreases at higher input voltages.
Note 9: Adjust pin bias current flows out of the ADJ pin.
Note 10: Shutdown pin current flows into the SHDN pin.
Note 11: Reverse output current is tested with IN grounded and OUT
forced to the rated output voltage. This current flows into the OUT pin and
out of the GND pin. For fixed voltage devices this includes the current in
the output resistor divider.
Note 12: The LT3020 is tested and specified for these conditions with an
external resistor divider (20k and 100k) setting V
resistor divider adds 10µA of load current.
Note 13: Reverse current is higher for the case of (rated_output) < V
V
trying to restore the output voltage to its nominal value.
Note 14: Minimum input voltage is the minimum voltage required by the
control circuit to regulate the output voltage and supply the full 100mA
rated current. This specification is tested at V
voltages the minimum input voltage required for regulation will be equal to
the regulated output voltage V
IN,
50
because the no-load recovery circuitry is active in this region and is
75
I
L
I
= 100mA
I
L
L
I
L
= 50mA
= 10mA
= 1mA
100
3020 G02
125
IN
– V
OUT
250
225
200
175
150
125
100
DROPOUT
75
50
25
0
●
–50
plus the dropout voltage.
Quiescent Current
V
V
I
L
IN
OUT
= 0
= 6V
–25
MIN
110
).
= 1.2V
IN
= V
0
OUT
TEMPERATURE (°C)
OUT(NOMINAL)
OUT
TYP
360
310
= 0.5V. At higher output
10
10
10
25
1
3
J
to 1.2V. The external
= 25°C.
V
V
SHDN
50
SHDN
MAX
and a current
= V
10
15
15
15
= 0V
5
75
sn3020 3020fas
IN
100
UNITS
OUT
3020 G03
mA
mA
125
µA
µA
µA
µA
µA
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