Datasheet

LTM4600HV
3
4600hvfc
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Output Specifi cations
I
OUTDC
Output Continuous Current Range
(See Output Current Derating Curves for
Different V
IN
, V
OUT
and T
A
)
V
IN
= 12V, V
OUT
= 1.5V
V
IN
= 24V, V
OUT
= 2.5V (Note 3)
0
0
10
10
A
A
ΔV
OUT(LINE)
V
OUT
Line Regulation Accuracy V
OUT
= 1.5V. FCB = 0V, I
OUT
= 0A,
V
IN
= 4.5V to 28V
●
0.15 0.3 %
ΔV
OUT(LOAD)
V
OUT
Load Regulation Accuracy V
OUT
= 1.5V. FCB = 0V, I
OUT
= 0A to 10A
V
IN
= 5V
V
IN
= 12V (Note 4) ●
±1
±1.5
%
%
V
OUT(AC)
Output Ripple Voltage V
IN
= 12V, V
OUT
= 1.5V, FCB = 0V, I
OUT
= 0A 10 15 mV
P-P
fs Output Ripple Voltage Frequency FCB = 0V, I
OUT
= 5A, V
IN
= 12V, V
OUT
= 1.5V 850 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
ΔV
OUTLS
Voltage Drop for Dynamic Load Step V
OUT
= 1.5V, Load Step: 0A/μs to 5A/μs
C
OUT
= 3 • 22μF 6.3V, 470μF 4V POSCAP,
See Table 2
36 mV
t
SETTLE
Settling Time for Dynamic Load Step V
IN
= 12V Load: 10% to 90% to 10% of Full Load 25 μs
I
OUTPK
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
17
17
17
A
A
A
Control Stage
V
OSET
Voltage at V
OSET
Pin I
OUT
= 0A, V
OUT
= 1.5V
●
0.591
0.594
0.6
0.6
0.609
0.606
V
V
V
RUN/SS
RUN ON/OFF Threshold 0.8 1.5 2 V
I
RUN(C)/SS
Soft-Start Charging Current V
RUN/SS
= 0V –0.5 –1.2 –3 μA
I
RUN(D)/SS
Soft-Start Discharging Current V
RUN/SS
= 4V 0.8 1.8 3 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, I
OUT
= 0A 16 mA
R
FBHI
Resistor Between V
OUT
and V
OSET
Pins 100 kΩ
V
FCB
Forced Continuous Threshold 0.57 0.6 0.63 V
I
FCB
Forced Continuous Pin Current V
FCB
= 0.6V –1 –2 μA
PGOOD Output
ΔV
OSETH
PGOOD Upper Threshold V
OSET
Rising 7.5 10 12.5 %
ΔV
OSETL
PGOOD Lower Threshold V
OSET
Falling –7.5 –10 –12.5 %
ΔV
OSET(HYS)
PGOOD Hysteresis V
OSET
Returning 2 %
V
PGL
PGOOD Low Voltage I
PGOOD
= 5mA 0.15 0.4 V
The ● denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at T
A
= 25°C, V
IN
= 12V. External C
IN
= 120μF, C
OUT
= 200μF/Ceramic per typical
application (front page) confi guration.
ELECTRICAL CHARACTERISTICS
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
specifi cations from 0°C to 85°C. Specifi 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.