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LTC3677-3
10
36773f
Typical perForMance characTerisTics
Input Supply Current
vs Temperature
Input Supply Current
vs Temperature (Suspend Mode)
Battery-Drain Current
vs Temperature
elecTrical characTerisTics
Note 4: V
CC
is the greater of V
BUS
, V
OUT
or BAT.
Note 5: Total input current is the sum of quiescent current, I
BUSQ
, and
measured current given by V
CLPROG
/R
CLPROG
• (h
CLPROG
+ 1).
Note 6: h
C/10
is expressed as a fraction of measured full charge current
with indicated PROG resistor.
Note 7: The current limit features of this part are intended to protect the
IC from short term or intermittent fault conditions. Continuous operation
above the maximum specified pin current rating may result in device
degradation or failure.
Note 8: The serial port is tested at rated operating frequency. Timing
parameters are tested and/or guaranteed by design.
Note 9: V
OUT
not in UVLO.
Note 10: Buck FB high, not switching.
Note 11: Measured with the LDO running unity gain with output tied to
feedback pin.
Note 12: Dropout voltage is the minimum input to output voltage
differential needed for an LDO to maintain regulation at a specified output
current. When an LDO is in dropout, its output voltage will be equal to
V
IN
– V
DROP
.
Note 13: PGOOD threshold is expressed as a percentage difference
from the Buck1, Buck2 and LDO1 regulation voltages. The threshold is
measured from Buck1, Buck2 and LDO1 output rising.
Note 14: The I
BATQ
specifications represent the total battery load assuming
V
INLDO1
, V
INLDO2
, V
IN12
and V
IN3
are tied directly to V
OUT
.
Note 15: Long-term current density rating for the part.
TEMPERATURE (°C)
–50
I
VBUS
(mA)
0.7
25
36773 G01
0.4
0.2
–25 0 50
0.1
0
0.8
0.6
0.5
0.3
75 100 125
V
BUS
= 5V
1x MODE
T
J
= 25°C unless otherwise specified