LTC3025-1 LINER [Linear Technology], LTC3025-1 Datasheet - Page 4

• Manufacturer Part Number: LTC3025-1
• Description: 500mA Micropower VLDO Linear Regulators
• Manufacturer: LINER [Linear Technology]

TYPICAL PERFORMANCE CHARACTERISTICS
PARAMETER
V
V
I
I
LTC3025-1/LTC3025-2/
LTC3025-3/LTC3025-4
temperature range, otherwise specifi cations are at T
(all capacitors ceramic) unless otherwise noted.
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-X regulators are tested and specifi ed under pulse
load conditions such that T
meet performance specifi cations from 0°C and 125°C. Specifi cations over
the –40°C to 125°C operating junction temperature range are assured by
design, characterization and correlation with statistical process controls.
The LTC3025I-X are guaranteed to meet performance specifi cations over
the full –40°C to 125°C operating junction temperature range.
ELECTRICAL CHARACTERISTICS
4
IH
L
IH
IL
SHDN Input Low Current
SHDN Input High Current
SHDN Input Low Voltage
SHDN Input High Voltage
120
100
80
60
40
20
0
0
V
vs I
V
V
IN
BIAS
IN
50
OUT
= 1.4V
to V
= 2.8V
100
OUT
150
Dropout Voltage
200
I
T
OUT
A
250
= 25°C
J
(mA)
≈ T
300
T
A
A
. The LTC3025E-X are guaranteed to
= 125°C
350
T
A
400
= –40°C
30251234 G01
450
CONDITIONS
SHDN = 1.2V
SHDN = 0V
500
200
100
500
450
400
350
300
250
150
50
0
0.01
A
Operating BIAS Current
vs Output Current
= 25°C. V
The
0.1
l
IN
denotes the specifi cations which apply over the full operating
= 1.5V, V
1
I
OUT
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
OUT and BIAS to OUT dropout voltages are all satisfi ed. For the
LTC3025-2/LTC3025-3/LTC3025-4 the minimum IN operating voltage
assumes I
minimum IN operating voltage decreases to the maximum V
Regulation Voltage as I
= 250mA for the LTC3025-2).
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
(mA)
25°C
10
BIAS
125°C
OUT
= 3.6V, C
100
30251234 G02
= 500mA. For correct regulation at I
–40°C
(T
A
1000
= 25°C unless otherwise noted)
OUT
OUT
= 1μF , C
decreases to 0mA (i.e. V
40
80
70
60
50
30
20
10
l
l
0
IN
2.5
BIAS No Load Operating Current
IN
– V
V
V
IN
OUT
= 0.1μF , C
MIN
= 1.5V
0.9
DROPOUT
–1
–1
= 1.2V
3
3.5
.
125°C
–40°C
TYP
BIAS
V
OUT
BIAS
INMIN
4
= 0.1μF
< 500mA the
(V)
= 1.312V at I
MAX
0.3
4.5
1
1
SENSE
25°C
5
30251234 G03
30251234fc
UNITS
OUT
5.5
μA
μA
V
V