ltm4619 Linear Technology Corporation, ltm4619 Datasheet - Page 3

• Manufacturer Part Number: ltm4619
• Description: Dual, 26vin, 4a Dc/dc ?module Regulator
• Manufacturer: Linear Technology Corporation

ELECTRICAL CHARACTERISTICS
operating temperature range, otherwise specifi cations are at T
each channel (Note 3).
SYMBOL
I
I
I
INTV
EXTV
Output Specifi cations
I
ΔV
ΔV
ΔV
ΔV
V
f
ΔV
t
ΔV
t
I
Control Section
V
I
DF
t
INRUSH(VIN)
Q(VIN)
S(VIN)
OUT1, 2(DC)
S
START
SETTLE
OUTPK
TK/SS1, 2
ON(MIN)
V
OUT1, 2(AC)
FB1
V
V
V
OUT2(NOM)
MAX
OUT1(LINE)
OUT2(LINE)
OUT1(LOAD)
OUT2(LOAD)
OUTSTART
OUTLS
OUT(NOM)
OUT(NOM)
OUT1(NOM)
, V
CC
CC
FB2
PARAMETER
Input Inrush Current at Start-Up
Input Supply Bias Current
Input Supply Current
Internal V
EXTV
Output Continuous Current Range V
Line Regulation Accuracy
Line Regulation Accuracy
Load Regulation Accuracy
Load Regulation Accuracy
Output Ripple Voltage
Output Ripple Voltage Frequency
Turn-On Overshoot
Turn-On Time
Peak Deviation for Dynamic Load
Settling Time for Dynamic Load
Step
Output Current Limit
Voltage at V
Soft-Start Charge Current
Maximum Duty Factor
Minimum On-Time
CC
Switchover Voltage
CC
FB
Voltage
Pin
CONDITIONS
I
V
V
V
V
V
Shutdown, RUN = 0, V
V
V
V
EXTV
V
I
V
I
For Each Output, V
V
For Each Output, V
V
I
I
FREQ/PLLFLTR = INTV
C
C
Resistive Load,
Load: 0% to 50% to 0% of Full Load
C
Load: 0% to 50% to 0% of Full Load
C
C
I
V
In Dropout (Note 4)
(Note 4)
OUT
OUT
OUT
OUT
OUT
OUT
TK/SS
IN
IN
IN
IN
IN
IN
IN
IN
IN
OUT
OUT
IN
IN
OUT
OUT
OUT
OUT
OUT
V
V
V
V
V
V
V
V
= 12V
= 12V, V
= 12V, V
= 26.5V, V
= 26.5V, V
= 12V, V
= 26.5V, V
= 12V, V
= 12V, V
= 12V
= 12V
= 0A, C
= 0A For Each Output
= 0A For Each Output
= 0A, C
= 2A, V
= 0A, V
IN
IN
IN
IN
IN
IN
IN
IN
CC
= 2.5V, V
= 2.5V, V
= 100μF X5R Ceramic, V
= 100μF X5R Ceramic, V
= 100μF X5R Ceramic,V
= 100μF X5R Ceramic,V
= 100μF X5R Ceramic,
= 0V, V
= 12V, V
= 26.5V, V
= 12V
= 26.5V
= 12V
= 26.5V
= 6V, V
= 26.5V, V
Ramping Positive
The
IN
OUT1
OUT2
OUT
RUN
OUT
OUT
IN
OUT
A
OUT
l
OUT1
OUT2
OUT
IN
IN
OUT
= 10μF , C
= 12V, V
= 25°C, V
OUT
= 2.5V, I
= 2.5V (Note 5)
= 100μF X5R Ceramic
= 2.5V
denotes the specifi cations which apply over the full internal
> 2V, No Load
from 6V to 26.5V
from 6V to 26.5V
= 2.5V, Switching Continuous
= 2.5V, Switching Continuous
OUT
OUT
= 2.5V
= 2.5V, I
= 2.5V
OUT
OUT
= 2.5V, Switching Continuous
= 2.5V, Switching Continuous
= 2.5V
= 2.5V
= 2.5V
CC
IN
OUT
= 2.5V, 0A to 4A (Note 5)
= 2.5V, 0A to 4A (Note 5)
OUT
OUT
= 20V
IN
OUT
= 2.5V
= 100μF , V
= 4A
= 12V. Per typical application in Figure 18. Specifi ed as
OUT
OUT
OUT
OUT
= 4A
= 2.5V, V
= 2.5V, V
= 2.5V, I
= 2.5V, I
OUT
= 2.5V
OUT
OUT
IN
IN
= 12V
= 12V
= 0A
= 0A
l
l
l
l
l
l
0.792
0.788
MIN
4.8
4.5
0.9
0
0.480
0.250
0.130
0.25
0.97
0.15
0.25
0.15
0.25
LTM4619
TYP
780
4.7
0.6
0.6
0.8
0.8
1.3
30
30
40
40
40
20
25
10
10
15
10
12
11
97
90
5
0.808
0.810
MAX
5.2
0.3
0.5
0.3
0.5
0.8
0.8
1.7
4
UNITS
3
4619f
kHz
mA
mA
mA
mA
±%
±%
mV
mV
mV
mV
mV
ms
ms
μA
μA
μs
ns
%
%
%
%
%
A
A
A
V
V
A
A
A
V