LTM4616
ELECTRICAL CHARACTERISTICS
SYMBOL
V
IN1(DC),
V
IN2(DC)
PARAMETER
Input DC Voltage
C
IN
= 10µF × 1, C
OUT
= 100µF Ceramic,
100µF POSCAP, R
FB
= 6.65k, MODE = 0V
V
IN
= 2.7V to 5.5V,
I
OUT
= I
OUT(DC)MIN
to I
OUT(DC)MAX
(Note 4)
SV
IN
Rising
SV
IN
Falling
V
IN
= 3.3V, V
OUT
= 1.5V, No Switching, MODE = V
IN
V
IN
= 3.3V, V
OUT
= 1.5V, No Switching, MODE = 0V
V
IN
= 3.3V, V
OUT
= 1.5V, Switching Continuous
V
IN
= 5V, V
OUT
= 1.5V, No Switching, MODE = V
IN
V
IN
= 5V, V
OUT
= 1.5V, No Switching, MODE = 0V
V
IN
= 5V, V
OUT
= 1.5V, Switching Continuous
Shutdown, RUN = 0, V
IN
= 5V
I
S(VIN1, VIN2)
Output Specifications
I
OUT1(DC),
I
OUT2(DC)
ΔV
OUT1(LINE)
/V
OUT1
ΔV
OUT2(LINE)
/V
OUT2
ΔV
OUT1(LOAD)
/V
OUT1
ΔV
OUT2(LOAD)
/V
OUT2
Output Continuous Current Range V
OUT
= 1.5V (Note 4)
V
IN
= 3.3V, 5.5V
V
IN
= 2.7V
Line Regulation Accuracy
Load Regulation Accuracy
V
OUT
= 1.5V, V
IN
from 2.7V to 5.5V, I
OUT
= 0A
V
OUT
= 1.5V (Note 4)
V
IN
= 3.3V, 5.5V, I
LOAD
= 0A to 8A
V
IN
= 2.7V, I
LOAD
= 0A to 5A
I
OUT
= 0A, C
OUT
= 100µF X5R Ceramic, V
IN
= 5V,
V
OUT
= 1.5V
I
OUT
= 8A, V
IN
= 5V, V
OUT
= 1.5V
C
OUT
= 100µF, V
OUT
= 1.5V, I
OUT
= 0A
V
IN
= 3.3V
V
IN
= 5V
C
OUT
= 100µF, V
OUT
= 1.5V, V
IN
= 5V,
I
OUT
= 1A Resistive Load, Track = V
IN
1.25
0.75
10
10
100
20
l
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).
CONDITIONS
l
MIN
2.7
1.472
l
TYP
MAX
5.5
UNITS
V
V
V
V
V
µA
mA
mA
µA
mA
mA
µA
A
A
V
OUT1(DC)
, V
OUT2(DC)
Output Voltage, Total Variation
with Line and Load
1.49
1.49
2.2
2.0
400
1.15
55
450
1.3
75
1
4.5
2.93
1.508
1.516
2.35
2.15
1.464
2.05
1.85
Input Specifications
V
IN1(UVLO)
,
V
IN2(UVLO)
I
Q(VIN1, VIN2)
Undervoltage Lockout Threshold
Input Supply Bias Current
Input Supply Current
V
IN
= 3.3V, V
OUT
= 1.5V, I
OUT
= 8A
V
IN
= 5V, V
OUT
= 1.5V, I
OUT
= 8A
0
0
0.1
8
5
0.25
A
A
%/V
l
l
0.3
0.3
10
1.5
0.5
0.5
%
%
mV
P-P
V
OUT1(AC)
, V
OUT2(AC)
Output Ripple Voltage
f
S1,
f
S2
f
SYNC1,
f
SYNC2
ΔV
OUT1(START),
ΔV
OUT2(START)
t
START1,
t
START2
ΔV
OUT1(LS),
ΔV
OUT2(LS)
t
SETTLE1,
t
SETTLE2
I
OUT1(PK),
I
OUT2(PK)
Switching Frequency
SYNC Capture Range
Turn-On Overshoot
1.75
2.25
MHz
MHz
mV
mV
µs
mV
Turn-On Time
Peak Deviation for Dynamic Load Load: 0% to 50% to 0% of Full Load,
C
OUT
= 100µF Ceramic x2, 470µF POSCAP,
V
IN
= 5V, V
OUT
= 1.5V
Settling Time for Dynamic Load
Step
Output Current Limit
Load: 0% to 50% to 0% of Full Load, V
IN
= 5V,
V
OUT
= 1.5V, C
OUT
= 100µF
C
OUT
= 100µF
V
IN
= 2.7V, V
OUT
= 1.5V
V
IN
= 3.3V, V
OUT
= 1.5V
V
IN
= 5V, V
OUT
= 1.5V
10
µs
8
11
13
A
A
A
4616fe
For more information
3
LINEAR_DIMENSIONS [ LINEAR DIMENSIONS SEMICONDUCTOR ]
