Datasheet

LTM4616
4
4616ff
For more information www.linear.com/LTM4616
electrical characteristics
The l denotes the specifications which apply over the specified internal
operating temperature range (Note 2). T
A
= 25°C, V
IN
= 5V unless otherwise noted. Per the typical application in Figure 18. Specified
as each channel (Note 3).
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Control Section
FB1, FB2 Voltage at FB Pin I
OUT
= 0A, V
OUT
= 1.5V, V
IN
= 2.7V to 5.5V
l
0.590
0.587
0.596
0.596
0.602
0.606
V
V
SS Delay Internal Soft-Start Delay 90 µs
I
FB1
, I
FB2
0.2 µA
V
RUN1,
V
RUN2
RUN Pin On/Off Threshold RUN Rising
RUN Falling
1.4
1.3
1.55
1.4
1.7
1.5
V
V
TRACK1, TRACK2
Tracking Threshold (Rising)
Tracking Threshold (Falling)
Tracking Disable Threshold
RUN = V
IN
RUN = 0V
0.57
0.18
V
IN
– 0.5
V
V
V
R
FBHI1,
R
FBHI2
Resistor Between V
OUT
and FB
Pins
9.95 10 10.05 kΩ
ΔV
PGOOD1,
ΔV
PGOOD2
PGOOD Range ±10 %
I
PGOOD1
, I
PGOOD2
PGOOD Leakage Current V
PGOOD
= V
IN
= 2.7V to 5.5V, I
OUT
= I
OUT(DC)MAX
(Note 4)
l
20 30 µA
V
PGL1
, V
PGL2
PGOOD Voltage Low I
PGOOD
= 5mA 0.2 0.4 V
%Margining Output Voltage Margining
Percentage
MGN = V
IN
, BSEL = 0V
MGN = V
IN
, BSEL = V
IN
MGN = V
IN
, BSEL = Float
MGN = 0V, BSEL = 0V
MGN = 0V
, BSEL = V
IN
MGN = 0V, BSEL = Float
4
9
14
–
4
–9
–14
5
10
15
–5
–10
–15
6
11
16
–6
–11
–16
%
%
%
%
%
%
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:
The LTM4616 is tested under pulsed load conditions, such that
T
J
≈ T
A
. The LTM4616E is guaranteed to meet performance specifications
over the 0°C to 125°C internal operating temperature range. Specifications
over the –40°C to 125°C internal operating temperature range are assured
by design, characterization and correlation with statistical process
controls. The LTM4616I is guaranteed to meet specifications over the
–40°C to 125°C internal operating temperature range. The LTM4616MP
is guaranteed and tested over the –55°C to 125°C internal operating
temperature range. Note that the maximum ambient temperature
consistent with these specifications is determined by specific operating
conditions in conjunction with board layout, the rated package thermal
resistance and other environmental factors.
Note 3: Tw o channels are tested separately and the same testing
conditions are applied to each channel.
Note 4: See Output Current Derating curves for different V
IN
, V
OUT
and T
A
.