Datasheet
LT3014
3
3014fd
ELECTRICAL CHARACTERISTICS
SYMBOL CONDITIONS MIN TYP MAX UNITS
Minimum Input Voltage I
LOAD
= 20mA
l
3 3.3 V
ADJ Pin Voltage
(Notes 2, 3)
V
IN
= 3.3V, I
LOAD
= 100μA
3.3V < V
IN
< 80V, 100μA < I
LOAD
< 20mA
l
1.200
1.180
1.220
1.220
1.240
1.260
V
V
Line Regulation
ΔV
IN
= 3.3V to 80V, I
LOAD
= 100μA (Note 2)
l
110 mV
Load Regulation (Note 2)
V
IN
= 3.3V, ΔI
LOAD
= 100μA to 20mA
V
IN
= 3.3V, ΔI
LOAD
= 100μA to 20mA
l
13 25
40
mV
mV
Dropout Voltage
V
IN
= V
OUT(NOMINAL)
(Notes 4, 5)
I
LOAD
= 100μA
I
LOAD
= 100μA
l
120 180
250
mV
mV
I
LOAD
= 1mA
I
LOAD
= 1mA
l
200 270
360
mV
mV
I
LOAD
= 10mA
I
LOAD
= 10mA
l
300 350
450
mV
mV
I
LOAD
= 20mA
I
LOAD
= 20mA
l
350 410
570
mV
mV
GND Pin Current
V
IN
= V
OUT(NOMINAL)
(Notes 4, 6)
I
LOAD
= 0mA
I
LOAD
= 100μA
I
LOAD
= 1mA
I
LOAD
= 10mA
I
LOAD
= 20mA
l
l
l
l
l
7
12
40
250
650
20
30
100
450
1000
μA
μA
μA
μA
μA
Output Voltage Noise C
OUT
= 0.47μF, I
LOAD
= 20mA, BW = 10Hz to 100kHz 115 μV
RMS
ADJ Pin Bias Current (Note 7) 4 10 nA
Shutdown Threshold V
OUT
= Off to On
V
OUT
= On to Off
l
l
0.25
1.3
1.3
2V
V
SHDN Pin Current (Note 8) V
SHDN
= 0V
V
SHDN
= 6V
l
l
1
0
4
1
μA
μA
Quiescent Current in Shutdown V
IN
= 6V, V
SHDN
= 0V
l
14 μA
Ripple Rejection V
IN
= 7V (Avg), V
RIPPLE
= 0.5V
P-P
, f
RIPPLE
= 120Hz,
I
LOAD
= 20mA
60 70 dB
Current Limit V
IN
= 7V, V
OUT
= 0V
V
IN
= 3.3V, ΔV
OUT
= –0.1V (Note 2)
l
25
70 mA
mA
Input Reverse Leakage Current V
IN
= –80V, V
OUT
= 0V
l
6mA
Reverse Output Current (Note 9) V
OUT
= 1.22V, V
IN
< 1.22V (Note 2) 2 4 μA
The l denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at T
J
= 25°C.
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: The LT3014 is tested and specifi ed for these conditions with the
ADJ pin connected to the OUT pin.
Note 3: Operating conditions are limited by maximum junction
temperature. The regulated output voltage specifi cation will not apply
for all possible combinations of input voltage and output current. When
operating at maximum input voltage, the output current range must be
limited. When operating at maximum output current, the input voltage
range must be limited.
Note 4: To satisfy requirements for minimum input voltage, the LT3014 is
tested and specifi ed for these conditions with an external resistor divider
(249k bottom, 392k top) for an output voltage of 3.3V. The external
resistor divider adds a 5µA DC load on the output.
Note 5: Dropout voltage is the minimum input to output voltage differential
needed to maintain regulation at a specifi ed output current. In dropout, the
output voltage is equal to (V
IN
– V
DROPOUT
).
Note 6: GND pin current is tested with V
IN
= V
OUT
(nominal) and a current
source load. This means the device is tested while operating in its dropout
region. This is the worst-case GND pin current. The GND pin current
decreases slightly at higher input voltages.
Note 7: ADJ pin bias current fl ows into the ADJ pin.
Note 8: SHDN pin current fl ows out of the SHDN pin.
Note 9: Reverse output current is tested with the IN pin grounded and the
OUT pin forced to the rated output voltage. This current fl ows into the OUT
pin and out of the GND pin.
Note 10: The LT3014 is tested and specifi ed under pulse load conditions
such that T
J
≅ T
A
. The LT3014E is 100% tested at T
A
= 25°C. Performance
at –40°C to 125°C is assured by design, characterization, and statistical
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