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LTM4602
ELECTRICAL CHARACTERISTICS
The l denotes the speci?cations which apply over the –40°C to 85°C
temperature range, otherwise speci?cations are at T A = 25°C, V IN = 12V. Per typical application (front page) con?guration.
SYMBOL
I S(VIN)
PARAMETER
Input Supply Current
CONDITIONS
V IN = 12V, V OUT = 1.5V, I OUT = 6A
MIN
TYP
0.88
MAX
UNITS
A
Output Speci?cation s
V IN = 12V, V OUT = 3.3V, I OUT = 6A
V IN = 5V, V OUT = 1.5V, I OUT = 6 A
1.80
2.08
A
A
I OUTDC
Output Continuous Current Range
V IN = 12V, V OUT = 1.5V
0
6
A
(See Output Current Derating Curves for
Different V IN , V OUT and T A )
Δ V OUT(LINE)
Line Regulation Accuracy
V OUT = 1.5V, I OUT = 0A, FCB = 0V,
l
0.15
0.3
%
V OUT
V IN = 4.5V to 20V
Δ V OUT(LOAD)
Load Regulation Accuracy
V OUT = 1.5V, I OUT = 0A to 6A, FCB = 0V,
V OUT
V IN = 5V, V IN = 12V (Note 3)
l
±0.25
±0.15
±0.5
±1.0
%
%
V OUT(AC)
fs
Output Ripple Voltage
Output Ripple Voltage Frequency
V IN = 12V, V OUT = 1.5V, I OUT = 0A, FCB = 0V
V OUT = 1.5V, I OUT = 6A, FCB = 0V
10
850
15
mV P-P
kHz
t START
Turn-On Time
V OUT = 1.5V, I OUT = 1A
V IN = 12V
V IN = 5V
0.5
0.7
ms
ms
Δ V OUTLS
Voltage Drop for Dynamic Load Step
V OUT = 1.5V, Load Step: 0A/μs to 3A/μs
30
mV
C OUT = 22μF 6.3V, 330μF 4V POSCAP,
See Table 2
t SETTLE
I OUTPK
Settling Time for Dynamic Load Step
Output Current Limit
Load: 10% to 50% to 10% of Full Load
Output Voltage in Foldback
V IN = 12V, V OUT = 1.5V
V IN = 5V, V OUT = 1.5V
25
9
9
μs
A
A
Control Stage
V OSET
V RUN/SS
I RUN(C)/SS
I RUN(D)/SS
Voltage at V OSET Pin
RUN ON/OFF Threshold
Soft-Start Charging Current
Soft-Start Discharging Current
I OUT = 0A, V OUT = 1.5V
V RUN/SS = 0V
V RUN/SS = 4V
l
0.591
0.8
–0.5
0.8
0.6
1.5
–1.2
1.8
0.609
2
–3
3
V
V
μA
μA
V IN – SV IN
EXTV CC = 0V, FCB = 0V
100
mV
I EXTVCC
Current into EXTV CC Pin
EXTV CC = 5V, FCB = 0V, V OUT = 1.5V,
16
mA
I OUT = 0A
R FBHI
Resistor Between V OUT and V OSET Pins
100
k Ω
V FCB
I FCB
Forced Continuous Threshold
Forced Continuous Pin Current
V FCB = 0.6V
0.57
0.6
–1
0.63
–2
V
μA
PGOOD Output
Δ V OSETH
Δ V OSETL
Δ V OSET(HYS)
V PGL
PGOOD Upper Threshold
PGOOD Lower Threshold
PGOOD Hysteresis
PGOOD Low Voltage
V OSET Rising
V OSET Falling
V OSET Returning
I PGOOD = 5mA
7.5
–7.5
10
–10
2
0.15
12.5
–12.5
0.4
%
%
%
V
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 LTM4602E is guaranteed to meet performance speci?cations
from 0°C to 85°C. Speci?cations over the –40°C to 85°C operating
temperature range are assured by design, characterization and correlation
with statistical process controls. The LTM4602I is guaranteed over the
–40°C to 85°C temperature range.
Note 3: Test assumes current derating versus temperature.
4602fa
3
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