LTC3100
4
3100fb
For more information www.linear.com/LTC3100
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
RUNBK Input High Voltage
l 0.9
V
RUNBK Input Low Voltage
l
0.3
V
RUNBK Input Current
RUNBK = 1.2V
0.8 2
礎
Soft-Start Time
1.3
ms
PGBK Threshold, Falling
Referenced to Feedback Voltage
8
%
PGBK Hysteresis
Referenced to Feedback Voltage
3
%
PGBK Voltage Low
5mA Load
65
mV
PGBK Leakage Current
PGBK = 5.5V
0.01 10
礎
ELECTRICAL CHARACTERISTICS: STEP-DOWN CONVERTER
The l denotes the
specifications which apply over the full operating temperature range. Extended commercial grade: 40癈 to 85癈, V
INBK
= 3.3V,
T
A
= 25癈, unless otherwise noted.
ELECTRICAL CHARACTERISTICS: LDO REGULATOR
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
Input Voltage Range
l 1.8 5.25
V
Output Voltage Adjust Range
(Note 3)
l
0.618
5.25
V
Feedback Voltage
l
582 600 618
mV
Maximum Output Current
l 100 120
mA
Feedback Input Current
FBLDO = 600mV
1 30
nA
Line Regulation
V
IN
= 3.3V to 5.25V
0.1
%/V
Load Regulation
From 10mA to 100mA Load
0.1
%
Dropout Voltage
I
OUT
= 100mA
l
130 200
mV
Ripple Rejection (PSRR)
Frequency = 1.5MHz at I
LOAD
= 50mA, C
OUT
= 2.2礔 (Note 3)
35
dB
Short-Circuit Current Limit
FBLDO < 582mV
l
120 160
mA
Soft-Start Time
0.3
ms
RUNLDO Input High Voltage
l
0.9
V
RUNLDO Input Low Voltage
l
0.3
V
RUNLDO Input Current
RUNLDO = 1.2V
0.8 2
礎
Quiescent CurrentActive
RUNLDO = 3.3V, Measured on V
BST
RUNBST = RUNBK = 0V, V
INBK
= 0V
26 40
礎
The l denotes the specifications which
apply over the full operating temperature range. Extended commercial grade: 40癈 to 85癈, V
BST
= 3.3V, V
LDO
= 3V, T
A
= 25癈, unless
otherwise noted.
ELECTRICAL CHARACTERISTICS: COMMON CIRCUITRY
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
MODE Input High Voltage
l 0.9
V
MODE Input Low Voltage
l
0.3
V
MODE Input Current
MODE = 0V
MODE = 5V
3.3
1.7
5
3
礎
礎
The l denotes the specifications
which apply over the full operating temperature range. Extended commercial grade: 40癈 to 85癈, V
BST
or V
INBK
= 3.3V, T
A
= 25癈,
unless otherwise noted.
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