ltc3025-2 Linear Technology Corporation, ltc3025-2 Datasheet - Page 4

• Manufacturer Part Number: ltc3025-2
• Description: 500ma Micropower Vldo Linear Regulators Features
• Manufacturer: Linear Technology Corporation

PARAMETER
V
I
I
e
V
V
I
I
LTC3025-1/LTC3025-2/
LTC3025-3/LTC3025-4
temperature range, otherwise specifications are at T
(all capacitors ceramic) unless otherwise noted. (Note 3)
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 specified maximum operating junction
temperature may impair device reliability.
Note 3: The LTC3025-X regulators are tested and specified under pulse
load conditions such that T
meet performance specifications from 0°C and 125°C. Specifications 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 specifications over
the full –40°C to 125°C operating junction temperature range.
elecTrical characTerisTics

OUT
OUT
IH
L
n
BIAS
IH
IL
SHDN Input Low Current
Output Voltage Noise
SHDN Input High Current
SHDN Input Low Voltage
SHDN Input High Voltage
Continuous Output Current
Current Limit
to V
OUT
Dropout Voltage (Note 4)
J
≈ T
A
. The LTC3025E-X are guaranteed to
CONDITIONS
LTC3025-1
V
V
f = 10Hz to 100kHz, I
SHDN = 1.2V
SHDN = 0V
ADJ
SENSE
= 0V(LTC3025-1),
= 0V(LTC3025-2/LTC3025-3/LTC3025-4)
A
= 25°C. V
OUT
The
= 300mA
l
IN
denotes the specifications which apply over the full operating
= 1.5V, V
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 satisfied. 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 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 6: Dropout voltage is 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
BIAS
OUT
= 3.6V, C
= 500mA. For correct regulation at I
OUT
OUT
= 1µF , C
decreases to 0mA (i.e. V
l
l
l
l
IN
IN
– V
= 0.1µF , C
MIN
500
0.9
DROPOUT
–1
–1
.
1130
TYP
80
BIAS
OUT
INMIN
= 0.1µF
< 500mA the
= 1.312V at I
MAX
1.5
0.3
1
1
SENSE
30251234fe
µV
UNITS
OUT
RMS
mA
mA
µA
µA
V
V
V