LTM4605 データシートの表示（PDF） - Linear Technology
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LTM4605 Datasheet PDF : 24 Pages
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LTM4605
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the –40°C to 85°C
temperature range, otherwise specifications are at TA = 25°C, VIN = 12V. Per typical application (front page) configuration.
SYMBOL
PARAMETER
CONDITIONS
MIN TYP
MAX UNITS
Output Specifications
IOUTDC
ΔVFB/VFB(NOM)
Output Continuous Current Range VIN = 12V, VOUT = 5V
(See Output Current Derating Curves VIN = 6V, VOUT = 12V
for Different VIN, VOUT and TA)
Reference Voltage Line Regulation VIN = 4.5V to 20V, VCOMP = 1.2V (Note 3)
Accuracy
12
A
5
A
0.002
0.02
%
ΔVFB/VFB(LOAD)
Switch Section
Load Regulation Accuracy
VCOMP = 1.2V to 0.7V
VCOMP = 1.2V to 1.8V (Note 3)
l
0.15
0.5
%
l
–0.15 –0.5
%
M1 tr
Turn-On Time (Note 4)
M1 tf
Turn-Off Time
M3 tr
Turn-On Time
M3 tf
Turn-Off Time
M2, M4 tr
Turn-On Time
M2, M4 tf
Turn-Off Time
t1d
M1 Off to M2 On Delay (Note 4)
t2d
M2 Off to M1 On Delay
t3d
M3 Off to M4 On Delay
t4d
M4 Off to M3 On Delay
Mode Transition 1 M2 Off to M4 On Delay
Mode Transition 2 M4 Off to M2 On Delay
M1 RDS(ON)
Static Drain-to-Source On-
Resistance
Drain to Source Voltage VDS = 12V, Bias
Current ISW = 10mA
Drain to Source Voltage VDS = 12V, Bias
Current ISW = 10mA
Drain to Source Voltage VDS = 12V, Bias
Current ISW = 10mA
Drain to Source Voltage VDS = 12V, Bias
Current ISW = 10mA
Drain to Source Voltage VDS = 12V, Bias
Current ISW = 10mA
Drain to Source Voltage VDS = 12V, Bias
Current ISW = 10mA
Drain to Source Voltage VDS = 12V, Bias
Current ISW = 10mA
Drain to Source Voltage VDS = 12V, Bias
Current ISW = 10mA
Drain to Source Voltage VDS = 12V, Bias
Current ISW = 10mA
Drain to Source Voltage VDS = 12V, Bias
Current ISW = 10mA
Drain to Source Voltage VDS = 12V, Bias
Current ISW = 10mA
Drain to Source Voltage VDS = 12V, Bias
Current ISW = 10mA
Bias Current ISW = 3A
50
ns
40
ns
25
ns
20
ns
20
ns
20
ns
50
ns
50
ns
50
ns
50
ns
220
ns
220
ns
6.5
mΩ
M2 RDS(ON)
Static Drain-to-Source On-
Resistance
Bias Current ISW = 3A
8
12
mΩ
M3 RDS(ON)
Static Drain-to-Source On-
Resistance
Bias Current ISW = 3A
8
12
mΩ
M4 RDS(ON)
Static Drain-to-Source On-
Resistance
Bias Current ISW = 3A
8
12
mΩ
Oscillator and Phase-Locked Loop
fNOM
fLOW
fHIGH
RPLLIN
IPLLFLTR
Nominal Frequency
Lowest Frequency
Highest Frequency
PLLIN Input Resistance
Phase Detector Output Current
VPLLFLTR = 1.2V
VPLLFLTR = 0V
VPLLFLTR = 2.4V
fPLLIN < fOSC
fPLLIN > fOSC
260
300
170
200
340
400
50
–15
15
330
kHz
220
kHz
440
kHz
kΩ
μA
μA
4605fa
3
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