LTC3026 LINER [Linear Technology], LTC3026 Datasheet - Page 3

• Manufacturer Part Number: LTC3026
• Description: 1.5A Low Input Voltage VLDO Linear Regulator
• Manufacturer: LINER [Linear Technology]

SYMBOL PARAMETER
V
OUT
I
I
I
e
V
V
I
I
V
I
PG
ELECTRICAL CHARACTERISTICS
The
V
SYMBOL
V
I
I
V
V
I
I
(BOOST ENABLED or DISABLED)
The
V
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired. This IC has overtemperature protection that
is intended to protect the device during momentary overload conditions.
Junction temperatures will exceed 125°C when overtemperature is active.
Continuous operation above the specified maximum operating junction
temperature may impair device reliability.
Note 2: Minimum Operating Voltage required for regulation is:
Note 3: When using BST to drive loads other than LTC3026s, the load
must be high impedance during start-up (i.e. prior to PG going high).
Note 4: PG threshold expressed as a percentage difference from the “V
Regulation Voltage” as given in the table.
ADJ
OUT
LIM
IHSHDN
ILSHDN
OHPG
IN
INSHDN
BST
BSTSHDN
n
ADJ
IHSHDN
ILSHDN
OLPG
IN
BST
BSTUVLO
IN
IN
V
IN
= 1.5V, V
= 1.5V, V
●
●
≥ V
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at T
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at T
OUT(MIN)
Regulation Voltage
(Note 5)
Programming Range
Dropout Voltage (Note 6)
ADJ Input Current
Continuous Output Current
Output Current Current Limit
Output Voltage Noise
SHDN Input High Voltage
SHDN Input Low Voltage
SHDN Input High Current
SHDN Input Low Current
PG Output Low Voltage
PG Output High Leakage Current V
Output Threshold (Note 4)
PARAMETER
Operating Voltage
Operating Current
Shutdown Current
Boost Operating Voltage (Note 7)
Undervoltage Lockout
Boost Operating Current
Boost Shutdown Current
OUT
OUT
+ V
= 1.2V, V
= 1.2V, C
DROPOUT
BST
IN
= C
= 5V, C
BST
= 1µF, C
IN
= C
CONDITIONS
1mA ≤ I
1mA ≤ I
V
V
V
f = 10Hz to 100kHz, I
Boost Disabled
Boost Enabled
1.14V ≤ V
3.5V ≤ V
1.14V ≤ V
SHDN = V
SHDN = 0V
I
PG High to Low
PG Low to High
PG
IN
ADJ
SHDN
PG
BST
= 2mA
= 1.5V, V
= 5.5V
OUT
= 0.4V
= V
CONDITIONS
(Note 2)
I
V
V
I
V
= 1µF, C
OUT
OUT
OUT
OUT
IN
SHDN
SHDN
SHDN
= 10µF (all capacitors ceramic) unless otherwise noted.
IN
IN
IN
IN
≤ 5.5V
≤ 1.5A, 1.14V ≤ V
≤ 1.5A, 1.14V ≤ V
= 100µA, V
= 100µA, V
≤ 3.5V
≤ 5.5V
ADJ
= 0V, V
= V
= 0V
= 0.38, I
OUT
IN
L
IN
(BOOST DISABLED, V
= 10µF (all capacitors ceramic) unless otherwise noted.
= 800mA
SHDN
SHDN
= 3.5V
OUT
ADJ
= V
= V
= 1.5A
IN
IN
IN
IN
≤ 3.5V, V
≤ 3.5V, V
, 1.2V ≤ V
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
Note 7: To maintain correct regulation
V
OUT
BST
BST
≤ V
IN
= 5V, V
= 5V, V
SW
≤ 5V
BST
= 0V)
– 2.4V
OUT
OUT
= 0.8V
= 0.8V
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
IN
– V
0.397
0.395
–100
1.14
MIN
MIN
–12
0.4
1.5
1.0
1.2
–10
4.5
4.0
–1
–1
DROPOUT
.
0.01
TYP
TYP
100
110
210
4.25
175
0.4
0.4
0.1
0.6
–9
–7
95
3
1
5
LTC3026
0.403
0.405
MAX
MAX
250
100
200
2.6
0.4
0.4
5.5
5.5
4.4
275
–6
– 4
A
A
20
1
1
1
5
= 25°C.
= 25°C.
µV
µV
UNITS
UNITS
3
3026f
RMS
RMS
mV
nA
µA
µA
µA
µA
µA
µA
µA
%
%
V
V
V
A
A
V
V
V
V
V
V
V