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LTM4600HV
ELECTRICAL CHARACTERISTICS The ● denotes the speci?cations which apply over the full operating
temperature range, otherwise speci?cations are at T A = 25°C, V IN = 12V. External C IN = 120μF, C OUT = 200μF/Ceramic per typical
application (front page) con?guration.
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Output Speci?cations
I OUTDC
Output Continuous Current Range
(See Output Current Derating Curves for
V IN = 12V, V OUT = 1.5V
V IN = 24V, V OUT = 2.5V (Note 3)
0
0
10
10
A
A
Different V IN , V OUT and T A )
Δ V OUT(LINE)
Line Regulation Accuracy
V OUT = 1.5V. FCB = 0V, I OUT = 0A,
●
0.15
0.3
%
V OUT
Δ V OUT(LOAD ) Load Regulation Accuracy
V IN = 4.5V to 28V
V OUT = 1.5V. FCB = 0V, I OUT = 0A to 10A
V OUT
V IN = 5V
V IN = 12V (Note 4)
●
±1
±1.5
%
%
V OUT(AC)
fs
Output Ripple Voltage
Output Ripple Voltage Frequency
V IN = 12V, V OUT = 1.5V, FCB = 0V, I OUT = 0A
FCB = 0V, I OUT = 5A, V IN = 12V, V OUT = 1.5V
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 5A/μs
36
mV
C OUT = 3 ? 22μF 6.3V, 470μF 4V POSCAP,
See Table 2
t SETTLE
I OUTPK
Settling Time for Dynamic Load Step V IN = 12V Load: 10% to 90% to 10% of Full Load
Output Current Limit
Output Voltage in Foldback
V IN = 24V, V OUT = 2.5V
V IN = 12V, V OUT = 1.5V
V IN = 5V, V OUT = 1.5V
25
17
17
17
μs
A
A
A
Control Stage
V OSET
Voltage at V OSET Pin
I OUT = 0A, V OUT = 1.5V
●
0.591
0.6
0.609
V
0.594
0.6
0.606
V
V RUN/SS
RUN ON/OFF Threshold
0.8
1.5
2
V
I RUN(C)/SS
I RUN(D)/SS
Soft-Start Charging Current
Soft-Start Discharging Current
V RUN/SS = 0V
V RUN/SS = 4V
–0.5
0.8
–1.2
1.8
–3
3
μA
μA
V IN – SV IN
EXTV CC = 0V, FCB = 0V
100
mV
I EXTVCC
R FBHI
Current into EXTV CC Pin
Resistor Between V OUT and V OSET Pins
EXTV CC = 5V, FCB = 0V, V OUT = 1.5V, I OUT = 0A
16
100
mA
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 Outpu t
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 LTM4600HVE 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 LTM46000HVMP
is guaranteed and tested over the –55°C to 125°C temperature range.
For output current derating at high temperature, please refer to Thermal
Considerations and Output Current Derating discussion.
Note 3: Refer to current de-rating curves and thermal application note.
Note 4: Test assumes current derating versus temperature.
4600hvfc
3
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