LTM4608 LINER [Linear Technology], LTM4608 Datasheet - Page 3

• Manufacturer Part Number: LTM4608
• Description: Low VIN, 8A DC/DC ?ModuleTM with Tracking, Margining, and Frequency Synchronization
• Manufacturer: LINER [Linear Technology]

ELECTRICAL CHARACTERISTICS
SYMBOL
I
I
Output Specifi cations
I
ΔV
ΔV
V
f
f
ΔV
t
ΔV
t
I
Control Section
V
SS Delay
I
V
temperature range, otherwise specifi cations are at T
Q(VIN)
S(VIN)
OUT(DC)
S
SYNC
START
SETTLE
OUT(PK)
FB
OUT(AC)
FB
RUN
V
V
OUT(LINE)
OUT(LOAD)
OUT(START)
OUT(LS)
OUT
OUT
PARAMETER
Input Supply Bias Current
Input Supply Current
Output Continuous Current Range
(See Output Current Derating
Curves for Different V
and T
Line Regulation Accuracy
Load Regulation Accuracy
Output Ripple Voltage
Switching Frequency
SYNC Capture Range
Turn-On Overshoot
Turn-On Time
Peak Deviation for Dynamic Load Load: 0% to 50% to 0% of Full Load,
Settling Time for Dynamic Load
Step
Output Current Limit
Voltage at FB Pin
Internal Soft-Start Delay
RUN Pin On/Off Threshold
A
)
IN
, V
OUT
CONDITIONS
V
V
V
V
V
V
Shutdown, RUN = 0, V
V
V
V
V
V
V
I
V
I
C
C
Resistive Load, Track = V
C
V
Load: 0% to 50% to 0% of Full Load, V
V
C
I
RUN Rising
RUN Falling
OUT
OUT
OUT
IN
IN
IN
IN
IN
IN
IN
IN
IN
OUT
OUT
OUT
OUT
OUT
OUT
OUT
IN
OUT
OUT
A
V
V
V
V
V
V
V
V
V
= 3.3V, V
= 3.3V, V
= 3.3V, V
= 5V, V
= 5V, V
= 5V, V
= 2.375V, V
= 3.3V, V
= 5V, V
= 5V, V
= 0A, C
= 8A, V
= 0A, V
= 25°C. V
IN
IN
IN
IN
IN
IN
IN
IN
IN
= 1.5V
= 1.5V, V
= 1.5V
= 1.5V
= 100μF , V
= 100μF , V
= 100μF Ceramic, 100μF POSCAP ,
= 1.5V, C
= 100μF
= 3.3V, 5.5V
= 2.375V
= 3.3V, 5.5V, I
= 2.375V, I
= 3.3V
= 5V
= 2.375V, V
= 3.3V, V
= 5V, V
The
OUT
OUT
OUT
OUT
OUT
OUT
IN
OUT
OUT
OUT
OUT
OUT
IN
OUT
OUT
= 5V, V
= 1.5V, No Switching, Mode = V
= 1.5V, No Switching, Mode = 0V
= 1.5V, Switching Continuous
= 1.5V, I
= 1.5V
OUT
●
OUT
OUT
IN
OUT
= 100μF/X5R/Ceramic, V
= 1.5V, V
= 1.5V, No Switching, Mode = V
= 1.5V, No Switching, Mode = 0V
= 1.5V, Switching Continuous
= 1.5V, I
from 2.375V to 5.5V, I
denotes the specifi cations which apply over the full operating
LOAD
= 1.5V
= 100μF
= 5V unless otherwise noted. See Figure 18.
OUT
= 1.5V, I
= 1.5V, I
= 1.5V, I
= 1.5V
LOAD
OUT
IN
OUT
= 1.5V
= 0A to 5A
OUT
IN
IN
= 5V
= 1.5V
= 0A to 8A
, V
= 8A
OUT
= 2.375V to 5.5V
OUT
OUT
= 8A
IN
= 5A
= 5V
= 0A
= 1A,
OUT
IN
IN
= 5V,
= 0A
= 5V,
IN
IN
●
●
●
●
0.592
0.589
0.75
MIN
1.3
1.4
1.3
0
0
0.596
0.596
1.15
3.75
2.93
1.55
TYP
400
450
100
1.3
4.5
0.1
0.3
0.3
1.5
0.2
1.4
55
75
10
10
10
15
10
11
13
90
1
8
LTM4608
0.600
0.603
MAX
0.75
0.75
2.25
0.2
1.7
1.5
1.7
8
5
UNITS
mV
3
MHz
MHz
4608f
%/V
mA
mA
mA
mA
mV
mV
mV
P-P
μA
μA
μA
μA
μs
μs
μs
%
%
A
A
A
A
A
A
A
A
V
V
V
V