LTM4616
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the specified internal
operating temperature range (Note 2). TA = 25°C, VIN = 5V unless otherwise noted. Per the typical application in Figure 18. Specified
as each channel (Note 3).
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
l
V
V
Input DC Voltage
2.7
5.5
V
IN1(DC), IN2(DC)
V
, V
Output Voltage, Total Variation
with Line and Load
C
V
= 10µF × 1, C
= 100µF Ceramic,
FB
OUT1(DC) OUT2(DC)
IN
OUT
100µF POSCAP, R = 6.65k, MODE = 0V
1.472
1.464
1.49
1.49
1.508
1.516
V
V
= 2.7V to 5.5V,
IN
l
I
= I
to I
(Note 4)
OUT
OUT(DC)MIN
OUT(DC)MAX
Input Specifications
V
V
,
Undervoltage Lockout Threshold SV Rising
2.05
1.85
2.2
2.0
2.35
2.15
V
V
IN1(UVLO)
IN2(UVLO)
IN
SV Falling
IN
I
Input Supply Bias Current
V
IN
V
IN
V
IN
= 3.3V, V
= 3.3V, V
= 3.3V, V
= 1.5V, No Switching, MODE = V
IN
= 1.5V, No Switching, MODE = 0V
= 1.5V, Switching Continuous
400
1.15
55
µA
mA
mA
Q(VIN1, VIN2)
OUT
OUT
OUT
V
V
V
= 5V, V
= 5V, V
= 5V, V
= 1.5V, No Switching, MODE = V
IN
= 1.5V, No Switching, MODE = 0V
= 1.5V, Switching Continuous
450
1.3
75
µA
mA
mA
IN
IN
IN
OUT
OUT
OUT
Shutdown, RUN = 0, V = 5V
1
µA
IN
I
Input Supply Current
V
IN
V
IN
= 3.3V, V
= 1.5V, I = 8A
OUT
4.5
2.93
A
A
S(VIN1, VIN2)
OUT
= 5V, V
= 1.5V, I
= 8A
OUT
OUT
Output Specifications
I
I
Output Continuous Current Range V
= 1.5V (Note 4)
IN
IN
OUT1(DC), OUT2(DC)
OUT
V
= 3.3V, 5.5V
= 2.7V
0
0
8
5
A
A
V
l
Line Regulation Accuracy
Load Regulation Accuracy
V
V
= 1.5V, V from 2.7V to 5.5V, I
= 0A
0.1
0.25
%/V
ΔV
ΔV
/V
OUT
IN
OUT
OUT1(LINE) OUT1
/V
OUT2(LINE) OUT2
= 1.5V (Note 4)
ΔV
ΔV
/V
/V
OUT
V
V
OUT1(LOAD) OUT1
OUT2(LOAD) OUT2
l
l
= 3.3V, 5.5V, I
= 0A to 8A
LOAD
0.3
0.3
0.5
0.5
%
%
IN
IN
= 2.7V, I
= 0A to 5A
LOAD
V
, V
Output Ripple Voltage
I
= 0A, C
OUT
= 100µF X5R Ceramic, V = 5V,
OUT IN
OUT1(AC) OUT2(AC)
OUT
V
= 1.5V
10
mV
P-P
f
f
f
Switching Frequency
SYNC Capture Range
Turn-On Overshoot
I
= 8A, V = 5V, V = 1.5V
OUT
1.25
0.75
1.5
1.75
2.25
MHz
MHz
S1, S2
OUT
IN
f
SYNC1, SYNC2
C
= 100µF, V
= 3.3V
= 1.5V, I
= 0A
OUT
ΔV
ΔV
OUT
OUT
OUT1(START),
OUT2(START)
V
10
10
mV
mV
IN
IN
V
= 5V
t
t
Turn-On Time
C
= 100µF, V
= 1.5V, V = 5V,
IN
START1, START2
OUT
OUT
OUT
I
= 1A Resistive Load, Track = V
100
20
µs
IN
Peak Deviation for Dynamic Load Load: 0% to 50% to 0% of Full Load,
mV
ΔV
ΔV
OUT1(LS),
OUT2(LS)
C
V
= 100µF Ceramic x2, 470µF POSCAP,
OUT
IN
= 5V, V
= 1.5V
OUT
t
t
Settling Time for Dynamic Load
Step
Load: 0% to 50% to 0% of Full Load, V = 5V,
OUT
10
µs
SETTLE1, SETTLE2
IN
V
= 1.5V, C
= 100µF
OUT
I
I
Output Current Limit
C
= 100µF
OUT1(PK), OUT2(PK)
OUT
V
= 2.7V, V
= 3.3V, V
= 1.5V
= 1.5V
8
11
13
A
A
A
IN
IN
IN
OUT
OUT
V
V
= 5V, V
= 1.5V
OUT
4616fe
3
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LINEAR_DIMENSIONS [ Linear Dimensions ]
