LT3010-5_15 Datasheet, PDF (4/18 Pages) Linear Technology – 50mA, 3V to 80V Low Dropout Micropower Linear Regulator

LT3010/LT3010-5
ELECTRICAL CHARACTERISTICS (LT3010H) The l denotes the specifications which apply over the –40°C to
140°C operating temperature range, otherwise specifications are at T_A = 25°C.
PARAMETER
Dropout Voltage
V_IN = V_OUT(NOMINAL)
(Notes 4, 5)
GND Pin Current
V_IN = V_OUT(NOMINAL)
(Notes 4, 6)
Output Voltage Noise
ADJ Pin Bias Current
CONDITIONS
I_LOAD = 1mA
I_LOAD = 1mA
I_LOAD = 10mA
I_LOAD = 10mA
I_LOAD = 50mA
I_LOAD = 50mA
I_LOAD = 0mA
I_LOAD = 1mA
I_LOAD = 10mA
I_LOAD = 50mA
C_OUT = 10µF, I_LOAD = 250mA, BW = 10Hz to 100kHz
(Note 7)
MIN TYP MAX UNITS
100 150
mV
l
220
mV
200 260
mV
l
380
mV
300 370
mV
l
600
mV
l
30 80
µA
l
100 200
µA
l
400 750
µA
l
1.8 3.5
mA
100
µV_RMS
50 100
nA
Shutdown Threshold
V_OUT = Off to On
V_OUT = On to Off
l
1.3
2
V
l 0.3 0.8
V
SHDN Pin Current
(Note 8)
V_SHDN = 0V
V_SHDN = 6V
0.5
2
µA
0.1 0.5
µA
Quiescent Current in Shutdown V_IN = 6V, V_SHDN = 0V
1
5
µA
Ripple Rejection
LT3010
V_IN = 7V(Avg), V_RIPPLE = 0.5V_P-P, f_RIPPLE = 120Hz, I_LOAD = 50mA
65 75
dB
LT3010-5
V_IN = 7V(Avg), V_RIPPLE = 0.5V_P-P, f_RIPPLE = 120Hz, I_LOAD = 50mA
60 68
dB
Current Limit
V_IN = 7V, V_OUT = 0V
LT3010-5
V_IN = 6V, ΔV_OUT = – 0.1V
LT3010 (Note 2) V_IN = 4.25V, ΔV_OUT = –0.1V
l
140
mA
l 55
mA
l 55
mA
Input Reverse Leakage Current V_IN = –80V, V_OUT = 0V
l
6
mA
Reverse Output Current
(Note 9)
LT3010-5
V_OUT = 5V, V_IN < 5V
LT3010 (Note 2) V_OUT = 1.275V, V_IN < 1.275V
10 20
µA
8
15
µA
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 LT3010 (adjustable version) is tested and specified 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 specification 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 LT3010
(adjustable version) is tested and specified for these conditions with an
external resistor divider (249k bottom, 392k top) for an output voltage of
3.3V. The external resistor divider will add 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 specified output current. In dropout, the
output voltage will be 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 will
decrease slightly at higher input voltages.
Note 7: ADJ pin bias current flows into the ADJ pin.
Note 8: SHDN pin current flows 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 flows into the OUT
pin and out the GND pin.
Note 10: The LT3010E is guaranteed to meet performance specifications
from 0°C to 125°C operating junction temperature. Specifications over
the –40°C to 125°C operating junction temperature range are assured by
design, characterization and correlation with statistical process controls.
The LT3010H is tested to the LT3010H Electrical Characteristics table at
140°C operating junction temperature. The LT3010MP is 100% tested and
guaranteed over the –55°C to 125°C operating junction temperature range.
High junction temperatures degrade operating lifetimes. Operating lifetime
is derated at junction temperatures greater than 125°C.
Note 11: This IC includes overtemperature protection that is intended
to protect the device during momentary overload conditions. Junction
temperature will exceed 125°C (LT3010E and LT3010MP) or 140°C
(LT3010H) when overtemperature protection is active. Continuous
operation above the specified maximum operating junction temperature
may impair device reliability.
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