ltc3025edc-1 Linear Technology Corporation, ltc3025edc-1 Datasheet - Page 3

• Manufacturer Part Number: ltc3025edc-1
• Description: 500ma Micropower Vldo Linear Regulator
• Manufacturer: Linear Technology Corporation

ELECTRICAL CHARACTERISTICS
PARAMETER
OUT Load Regulation (Referred to ADJ Pin)
OUT Load Regulation
V
V
BIAS Line Regulation (Referred to ADJ Pin)
BIAS Line Regulation
V
V
I
I
e
V
V
I
I
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: 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 specifi ed maximum operating junction
temperature may impair device reliability.
Note 3: The LTC3025-1/LTC3025-2 regulator is tested and specifi ed under
pulse load conditions such that T
100% production tested at 25°C. Performance at –40°C and 125°C is
assured by design, characterization and correlation with statistical process
control.
Note 4: For the LTC3025-1, a regulated output voltage will only be available
when the minimum IN and BIAS operating voltages as well as the IN to
temperature range, otherwise specifi cations are at T
C
OUT
OUT
IH
L
n
IN
IN
IN
BIAS
IH
IL
BIAS
SHDN Input Low Current
Output Voltage Noise
SHDN Input High Current
SHDN Input Low Voltage
Line Regulation (Referred to ADJ Pin)
Line Regulation
to V
SHDN Input High Voltage
Continuous Output Current
Current Limit
to V
= 0.1μF (all capacitors ceramic) unless otherwise noted.
OUT
OUT
Dropout Voltage (Notes 4, 6)
Dropout Voltage (Note 4)
J
≈ T
A
. The LTC3025-1/LTC3025-2 is
CONDITIONS
ΔI
ΔI
V
I
V
I
V
I
V
I
V
0.37V(LTC3025-1), V
LTC3025-1
V
f = 10Hz to 100kHz, I
SHDN = 1.2V
SHDN = 0V
OUT
OUT
OUT
OUT
IN
IN
IN
IN
BIAS
ADJ
OUT
OUT
= 1.5V to 5V, V
= 1.5V to 5V, V
= 1.5V, V
= 1.5V, V
= 1mA, LTC3025-1
= 1mA, LTC3025-2
= 1mA
= 1mA, LTC3025-2
= 0V(LTC3025-1), V
= 2.8V, V
= 1mA to 500mA, LTC3025-1
= 1mA to 500mA, LTC3025-2
BIAS
BIAS
A
IN
= 25°C. V
= 2.7V to 5V, V
= 2.7V to 5V, V
= 1.5V, I
BIAS
BIAS
The
SENSE
OUT
= 3.6V, V
= 3.6V, V
SENSE
OUT
= 300mA
l
IN
= 1.15V(LTC3025-2)
denotes the specifi cations which apply over the full operating
= 1.5V, V
= 500mA, V
= 0V(LTC3025-2)
OUT
OUT
OUT
OUT
OUT and BIAS to OUT dropout voltages are all satisfi ed. For the LTC3025-
2 the minimum IN operating voltage assumes I
regulation at I
to the minimum IN operating voltage such that minimum IN operating
voltage = 1.2V + 0.17V = 1.37V. For I
voltage linearly decreases with I
then D.O. = 0.085 at I
Note 5: 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 6: Dropout voltage is minimum input to output voltage differential
needed to maintain regulation at a specifi ed output current. In dropout, the
output voltage will be equal to V
= 1.2V,
= 1.2V,
= 1.2V
= 1.2V
BIAS
ADJ
= 3.6V, V
=
OUT
LTC3025-1/LTC3025-2
= 500mA the V
OUT
OUT
= 250mA).
= 1.2V, C
l
l
l
l
l
l
l
OUT
IN
IN
– V
to V
OUT
(i.e. if D.O. = 0.17V at I
OUT
MIN
500
0.9
–1
–1
DROPOUT
OUT
= 1μF , C
< 500mA the V
dropout voltage must be added
.
–0.35
1130
OUT
0.07
0.21
TYP
1.7
–1
75
80
5
IN
= 0mA. For correct
= 0.1μF ,
IN
MAX
16.5
to V
170
5.5
1.5
0.3
OUT
1
1
OUT
= 500mA,
dropout
302512fa
μV
UNITS
3
RMS
mV
mV
mV
mV
mV
mV
mV
mA
mA
μA
μA
V
V
V