Datasheet
LTC4366-1/LTC4366-2
436612fd
For more information www.linear.com/LTC4366
5
elecTrical characTerisTics
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. All voltages relative to V
SS
, unless otherwise noted.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
FB, SD, TIMER
V
FB(REG)
3% FB pin Regulation Threshold (OUT-FB)
l
1.193 1.23 1.267 V
I
FB
FB Pin Leakage Current OUT-FB = 1.2V
l
0 ±1 µA
V
SD(TH)
SD Pin Threshold Voltage (V
DD
-SD) Falling
l
1.0 1.5 2.3 V
V
SD(HYST)
SD Pin Hysteresis LTC4366C/I/H
LTC4366MP
l
l
147
129
280
280
530
530
mV
mV
I
SD
SD Pin Input Pull-Up Current V
DD
-SD = 0.7V LTC4366C/I/H
LTC4366MP
l
l
–0.7
–0.5
–1.6
–1.6
–3.5
–3.5
µA
µA
V
TIMER(H)
TIMER Pin Threshold TIMER Rising, V
DD
= 7V, OUT = V
Z(OUT)
l
2.6 2.8 3.1 V
I
TIMER(UP)
TIMER Pin Pull-Up Current TIMER = 1V LTC4366C/I/H
LTC4366MP
l
l
–5.1
–4
–9
–9
–13
–13
µA
µA
I
TIMER(DN)
TIMER Pin Pull-Down Current TIMER = 1V LTC4366C/I/H
LTC4366MP
l
l
0.9
0.7
1.8
1.8
2.8
2.8
µA
µA
I
TIMER(RATIO)
TIMER Pin Current Ratio I
TIMER(DN)
/I
TIMER(UP)
l
15 20 25 %
AC Characteristics
t
D LY- SD
SD Low to Gate Low Filter Time Step V
DD
-SD
from 0V to 3V
l
420 700 1200 µs
t
DLY-FAST
FB Low to Gate Low Delay Time Step OUT-FB from 0V to 1.3V
l
60 150 300 ns
t
D(COOL)
Cool-Down Timer (Internal) V
DD
= V
Z(VDD)
LTC4366C/I/H
LTC4366MP
l
l
5.9
5.9
9
9
16
19
Seconds
Seconds
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:
All currents into pins are positive.
Note 3: Limits on the maximum rating is defined as whichever limit occurs
first. An internal clamp limits the GATE pin to a maximum of 12V above
source. Driving this pin to voltages beyond the clamp may damage the
device.
Note 4: T
J
is calculated from the ambient temperature, T
A
, and power
dissipation, P
D
, according to the formula:
T
J
= T
A
+ (P
D
• 250°C/W)